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BMW - Reinforced Engine Parts
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BMW - Reinforced Engine Parts
Subcategories
This category lists the forged connecting rods available for the BMW 1.6 8-valve engine, codes M40B16 and M43B16.
Only one part family is stocked here today: a set of forged rods intended for a bottom end running forged pistons. Forged and then machined, the rod carries inertia and combustion loads far beyond the standard part, which makes it the first item to uprate once the engine sees higher revs or boost.
No other part family is listed for this engine code at present.
The 1.6 16-valve N13B16 shares its architecture with the MINI and PSA Prince EP6 units, so the parts gathered here are listed for the N12, N13, N14, N16, N18 and EP6 family.
Uprated parts for the BMW 1.8 16-valve M42B18 fitted to the 318i and 318is, E30 and E36.
Enough to rebuild a complete bottom end and secure head sealing on a fast road or track build.
This category lists the forged connecting rods available for the BMW 1.9 16-valve M44B19.
Only one part family is listed here: a set of forged rods shared with the M42B18, intended for a bottom end running forged pistons. Forged and then machined, the rod carries inertia and combustion loads far beyond the standard part, which makes it the first item to uprate once the engine sees higher revs.
No other part family is listed for this engine code at present.
The M10B20 is built differently depending on the head fitted: this category gathers the parts for the 2.0 8-valve block running the 121 series cylinder head.
The head sets the chamber volume and therefore the compression ratio: check which series yours is before ordering pistons.
The M10B20 is built differently depending on the head fitted: this category gathers the parts for the 2.0 8-valve block running the E12 series cylinder head.
The head sets the chamber volume and therefore the compression ratio: check which series yours is before ordering pistons.
This category gathers the uprated bottom end parts for the BMW 2.0 16V turbo N20B20, also listed for the N26B20.
On a factory turbocharged engine these are the three parts that cap the power the block will take: replacing them together lets you raise boost without putting the bottom end at risk. Head and fastener families are not listed yet for this engine code.
Engine parts for the BMW and MINI 2.0 16v turbo B48 (B48A20, B48B20), an engine also fitted to the Toyota Supra.
Every reference gathered here is listed for the B48, so a full head or bottom end build can be ordered without checking fitment against another engine.
Engine parts for the BMW M50B20 2.0 24v straight six, fitted to the E36 320i and E34 520i, in both VANOS and non-VANOS form.
From the valve train to the bottom end, this page gathers what a built M50B20 needs.
Engine parts for the BMW M52B20 2.0 24v straight six of the E36, E39 and Z3 with single VANOS.
Top end and bottom end parts for the M52B20, gathered on a single page.
The BMW M20B23, the 2.3 12v straight six, is covered here on its rotating assembly.
These are the parts that decide how a built bottom end holds up: a forged piston takes the extra power and heat where the cast original gives way, and a tri-metal shell accepts higher loads and higher engine speeds than the standard bearing. Check the tang location on your main caps before ordering.
This page holds a single family of parts for the BMW S14B20, the 2.0 16v four cylinder: forged connecting rods.
The connecting rod is the first part to go when power climbs past what the standard item was designed for. Forged from solid and then machined, it resists tensile fatigue better and takes higher engine speeds than the original. This set is listed for a build running forged pistons, so check that it matches the pistons you intend to use before ordering.
The S14B23, the 2.3 16v four cylinder of the BMW M3 E30, is covered here across the whole engine.
Enough to rebuild a complete S14, from the bottom end to the cylinder head, from one supplier.
The S14B25, the 2.5 16v four cylinder of the BMW M3 E30, is covered here from the bottom end to the cylinder head.
The reinforced head gasket, the head studs and the ARP con rod bolts listed here are specified for the S14B23.
The BMW M20B25 is the 2.5 litre 12-valve single overhead cam straight six fitted to the 325i and 325iX E30, the 525i E34 and the Z1 Roadster. This category brings together the uprated parts we stock for that engine.
For the bottom end: forged pistons, including a version sized for an M20B27 crankshaft, forged connecting rods on a 135 mm centre to centre length, tri-metal big end and main bearings. For the top end: performance intake and exhaust valves, an uprated head gasket and vernier cam pulleys. ARP fasteners finish the build, with head studs and con rod bolts.
The M50B25 is BMW's 2.5 litre 24-valve straight six in its pre-VANOS form, fitted to the early 325i E36 and 525i E34. The parts gathered here are specific to that variant, without variable valve timing.
CATCAMS Sport camshafts and mechanical cam followers listed without VANOS, dedicated forged pistons, forged connecting rods on a 135 mm centre to centre length, tri-metal bearings. On the head: performance intake and exhaust valves, uprated valve springs, SUPERTECH valve guides, 6 and 7 mm valve stem seals, an uprated head gasket. ARP head studs, main studs and con rod bolts, plus a FUEL INJECTOR CLINIC 1000cc high impedance injector.
The M50B25TU is the technical update of BMW's 2.5 litre 24-valve straight six, with intake VANOS, fitted to the later 325i E36 and 525i E34. The parts gathered here belong to that variable valve timing variant.
CATCAMS Sport camshafts and mechanical cam followers listed with VANOS, forged pistons specific to the M50B25TU, forged connecting rods on the 140 mm centre to centre length of the 24-valve six, tri-metal bearings. On the head: performance intake and exhaust valves, uprated springs, SUPERTECH valve guides, valve stem seals and an uprated head gasket. ARP head and main studs, ARP con rod bolts, and a FUEL INJECTOR CLINIC 1000cc injector.
The M52B25 is the 2.5 litre 24-valve that follows the M50, with a single VANOS unit on the intake camshaft. It is fitted to the 323i E36, the 523i E39 and the Z3. This category gathers the parts available for that single VANOS variant.
CATCAMS Sport camshafts and mechanical cam followers listed for the single VANOS M52, forged pistons specific to the M52B25, forged connecting rods on a 140 mm centre to centre length, tri-metal big end and main bearings. On the head: performance valves, uprated springs, SUPERTECH valve guides, stem seals and an uprated head gasket. ARP main studs and an M22x1.50 oil cooler adapter.
The M52B25TU is the double VANOS version of BMW's 2.5 litre 24-valve six, with variable timing on both the intake and the exhaust camshaft. It is found in the 323i E46, the 523i E39 and the Z3. This category gathers the parts available for that variant.
CATCAMS Sport camshafts listed for the double VANOS M52 and mechanical cam followers, performance intake and exhaust valves, uprated valve springs, SUPERTECH valve guides and stem seals. For the bottom end: forged connecting rods on a 135 mm centre to centre length and tri-metal big end and main bearings. An M22x1.50 oil cooler adapter completes the range.
The M54B25 is BMW's 2.5 litre 24-valve straight six, fitted to the 325 among others.
This category covers the bottom end of the build. The forged connecting rods made for this engine come as a full set or as a single rod, so one damaged rod can be replaced without buying the whole set again. They are designed to take forged pistons and to cope with the extra revs and cylinder pressure of a tuned engine.
Alongside them, tri-metal big end bearings, shared across the BMW M20, M50, M52 and M54 straight sixes, complete the rotating assembly.
The M20B27 is the 2.7 litre 12-valve version of the BMW M20 straight six, with a longer stroke than the M20B25.
This category covers the rotating assembly of that engine. Tri-metal big end bearings and tri-metal main bearings, available with a single tang or with twin tangs, cover the M20 family sixes.
Alongside them, M20B25 forged pistons intended for a build using an M20B27 crankshaft: this is the combination chosen by builders who want the 2.7 stroke with the 2.5 bore. Check which crankshaft is fitted before ordering.
This page lists the uprated engine parts we stock for the BMW 2.8L 12-valve M30B28 straight six.
The range currently comes down to one set of forged connecting rods, covering the whole M30 family: M30B28, M30B30, M30B32 and M30B35. They are made to be run with forged pistons, in a build aimed at more power or at boost.
Centre to centre length, con rod bolt type and machining tolerances are given on the product page. On a tuned M30, the forged rod is the first component to secure before raising engine speed or torque.
Every uprated engine part we list for the BMW M52B28, the 2.8 litre 24-valve straight six fitted to the 328i E36 and E46, 528i E39, 728i E38 and Z3.
The bottom end is covered in full: forged pistons, forged connecting rods at 135 mm centre to centre, tri-metal big end and main bearings, and an uprated head gasket. On the head side: performance intake and exhaust valves, valve springs, SUPERTECH valve guides, valve stem seals, plus CATCAMS camshafts and mechanical cam followers for the single VANOS engine.
ARP fasteners complete the build: con rod bolts and main studs.
The B58B30 is BMW's 3.0 24-valve turbocharged straight six, also fitted to the Toyota Supra. Here are the uprated parts we hold for it.
Bottom end: forged pistons, including a version made for the 100 mm crankshaft, forged connecting rods, tri-metal big end and main bearings, and an uprated head gasket.
Cylinder head: performance intake and exhaust valves, uprated valve springs, intake and exhaust valve stem seals.
Clamping: ARP head studs and main studs, essential as soon as boost pressure goes up.
The M30B30 is the 3.0 litre version of BMW's 12-valve straight six, a sturdy base that is often taken further.
For this engine our catalogue offers one set of forged connecting rods shared across the whole M30 family: M30B28, M30B30, M30B32 and M30B35. It suits builds that run forged pistons, whether highly tuned naturally aspirated or boosted.
Centre to centre length, con rod bolts and machining tolerances are detailed on the product page. Replacing the standard rod remains the step to take before raising engine speed or torque.
The M54B30 is BMW's 3.0 litre 24-valve straight six, fitted to the 330i E46, 530i E39 and E60, 730i E65, Z3 and Z4. Here is everything we hold for it.
Bottom end: forged pistons, forged connecting rods at 135 mm centre to centre, tri-metal big end and main bearings, an uprated head gasket and ARP con rod bolts.
Cylinder head: performance intake and exhaust valves, uprated valve springs, SUPERTECH valve guides, 6mm exhaust valve stem seals and CATCAMS camshafts.
An oil cooler adapter rounds off the range for this engine.
The N52B30 is BMW's naturally aspirated 3.0 litre 24-valve straight six.
For this engine we currently list one set of forged connecting rods made specifically for the N52B30, to be run with forged pistons. It is the part that secures the bottom end as soon as peak engine speed or power go beyond standard, whether the build stays naturally aspirated or moves to boost.
Centre to centre length, con rod bolt type and machining tolerances are given on the product page. The other BMW six-cylinder engine codes have their own categories.
The N54B30 is BMW's 3.0 litre 24-valve twin-turbo straight six, fitted to the 135i and 1M E8X, 335i E9X and Z4. It takes a lot, but the standard parts become the limit as soon as the build starts.
Bottom end: forged pistons, forged connecting rods, tri-metal big end and main bearings, and an uprated head gasket.
Cylinder head: performance intake and exhaust valves, uprated valve springs, intake and exhaust valve stem seals, plus CATCAMS camshafts.
A DINAN performance air filter is also listed, on clearance with no returns.
Forged pistons, forged connecting rods, tri-metal big end and main bearings, a reinforced head gasket, performance intake and exhaust valves, uprated valve springs and valve stem seals for the BMW 3.0 24v N55B30.
A DINAN sport air filter is also listed here for the 135i, M235i, M2, 335i and 435i fitted with this engine.
These parts suit builds that raise the load on the engine, where the standard components no longer cope. Check the fitment notes on each product page.
A full build for the BMW M3 E36 S50B30: forged pistons, forged connecting rods, a forged crankshaft, tri-metal big end and main bearings, a reinforced head gasket, ARP head studs and con rod bolts.
On the cylinder head, CATCAMS sport camshafts and mechanical cam followers, SUPERTECH performance intake and exhaust valves including an Inconel exhaust version, uprated valve springs and 7mm valve stem seals.
Fuelling is covered by 1000cc FUEL INJECTOR CLINIC high flow injectors.
The S50B30US is the North American six-cylinder of the BMW M3 E36 and differs from the European S50B30. A forged piston kit specific to this engine is listed here.
Alongside it are tri-metal twin tang main bearings covering the M20, M50, M52, M54, S50 and S54 blocks, and 1000cc FUEL INJECTOR CLINIC high flow injectors quoted for the E36 M50, S50 and S52.
The ARP head studs and main studs shown in this category are quoted by the maker for the M50B20, M50B25, M52B25 and M52B28: check fitment before ordering.
The S55B30 is the six-cylinder engine of the BMW M3 F80 and M4 F82. This category gathers the rotating assembly and cylinder head parts used on a performance build.
It lists forged pistons, forged connecting rods, tri-metal big end and main bearings, a reinforced head gasket, performance intake and exhaust valves and uprated valve springs.
Several of these references also cover the N54B30 and N55B30: check the exact engine code on each product page.
This category covers the S58B30, the BMW 3.0 24v twin-turbo six-cylinder. It currently holds a single family of parts: forged connecting rods.
These rods are made to run with forged pistons, as part of an engine rebuild or a build that raises the load on the rotating assembly.
Dimensions and centre to centre length are given on the product page. No other family of parts is listed for this engine at the moment.
The M30B32 is a 3.2 litre 12-valve straight-six from the BMW M30 family. This category currently holds one family of parts: forged connecting rods.
The kit covers the M30B28, M30B30, M30B32 and M30B35 blocks, from 2.8 to 3.5 litres, and is meant to run with forged pistons.
Centre to centre length and dimensions are given on the product page. No other family is listed for this engine so far.
The S50B32 powers the BMW M3 E36 3.2 and the Z3M. The category covers forged pistons, forged connecting rods, a forged crankshaft, tri-metal big end and main bearings, a reinforced head gasket, ARP head studs and con rod bolts.
Valve train parts include CATCAMS sport camshafts and mechanical cam followers, SUPERTECH performance intake valves, performance exhaust valves, uprated valve springs and 6mm valve stem seals.
1000cc FUEL INJECTOR CLINIC high flow injectors complete the fuelling side.
This category brings together the uprated engine parts we stock for the BMW S52B32US 3.2 24v straight six, the US-market M3 E36 engine.
The ARP fasteners and the bearing sets cover the wider M50, M52, S50 and S52 six cylinder family, so check the part number listed on each product page before ordering. These parts suit a high compression naturally aspirated build as well as a forced induction conversion.
This category covers the BMW S54B32 3.2 24v straight six of the M3 E46, Z3 M and Z4 M.
Everything needed to rebuild the bottom end or the cylinder head of an S54.
This category lists the uprated parts available for the BMW M30B35 3.5 12 valve straight six in its Alpina form.
The selection is identical to the M30B35 BMW category: the four live part numbers fit both versions of the block. Check the part number on each product page before ordering.
This category gathers the uprated parts available for the BMW M30B35 3.5 12 valve straight six in its standard BMW form.
These four live part numbers are exactly the same as in the M30B35 Alpina category: nothing currently separates the two lists. The forged piston listing carries the Alpina wording, so check the part number before ordering.
The S38B35 is the 3.5 litre 24 valve straight six from BMW Motorsport, derived from the M88. This category currently holds a single live part number:
Bore size and compression ratio are listed on the product page, so check them before ordering: forged pistons are chosen according to the machining already carried out on the block. The other uprated S38 part families, valves, springs, cam followers and camshafts, sit under the S38B36 and S38B38 categories.
The S38B36 is the 24 valve straight six of the BMW M5 E34. This category gathers the uprated parts available for that engine.
One SUPERTECH valve stem seal listing attached here is specified for the Nissan RB25DET and does not fit the S38. Several part numbers also cover the S38B38.
The S38B38 is the last evolution of the BMW Motorsport 24 valve straight six, fitted to the M5 E34 3.8. This category gathers the uprated parts still available.
One SUPERTECH valve stem seal listing attached here is specified for the Nissan RB25DET and does not fit the S38. No head gasket is currently live in this category.
This category brings together the performance parts we stock for the 4.0 32V S65B40 V8 fitted to the BMW M3 E90, E92 and E93.
It covers the rotating assembly with forged pistons and forged connecting rods, tri-metal big end and main bearings, performance intake and exhaust valves, the COMETIC reinforced head gasket, ARP head studs and con rod bolts, plus the VIBRA-TECHNICS uprated engine mount and the BMC air filter.
Everything you need to make a standard S65 reliable or to build a road and track engine from proven components.
This category gathers the performance parts available for the 4.4 32V M62B44 V8 fitted to the BMW 540i E39.
Four families are listed here: forged pistons, CATCAMS sport camshafts, the ATHENA reinforced cylinder head gasket and reinforced ARP con rod bolts.
Together they cover the two usual stages of an M62 build: more breathing and more revs from the camshafts and the pistons, then a reliable bottom end and a safe head seal once the power has gone up.
This category covers the 4.4 32V S63B44 twin-turbo V8 of the BMW M5 F10 and M6 F13.
It lists two sets of forged pistons, one of them supplied with BMW liners, forged connecting rods, tri-metal big end and main bearings, performance intake and exhaust valves, the SUPERTECH kit of 32 valve springs with retainers, the reinforced head gasket sold individually and two sets of ARP head studs, in ARP2000 and in CA625+.
A range built for a factory forced induction engine whose output climbs quickly as soon as boost pressure goes up.
This category currently lists a single family of parts for the 5.0 24V M70B50 V12: forged connecting rods.
They are meant to be fitted with forged pistons and are also listed for the M70B54, the 5.4 version of the same engine family.
The connecting rod takes the inertia and combustion loads on a twelve cylinder pushed beyond its standard output: it is the first item to address as soon as peak revs or cylinder pressure go up.
This category currently holds a single family of parts for the 5.0 32V S62B50 V8: forged connecting rods.
They are designed to be fitted with forged pistons, as part of a full bottom end rebuild.
On a naturally aspirated V8 of this type, the standard rod becomes the weak point as soon as peak revs are raised or the engine runs at high load for long track sessions. The forged rod brings the safety margin that is missing, without changing the architecture of the engine.
This category currently offers a single family of parts for the 5.0 40V S85B50 V10: forged connecting rods.
They are intended to be fitted with forged pistons during a full rebuild of the rotating assembly.
The S85 is a naturally aspirated ten cylinder that works very high in the rev range, and the inertia loads on the rod rise with the square of engine speed. Moving to forged rods is therefore the first safety margin to take before chasing power or running regular track days.
Every uprated engine part we stock for the BMW 1 Series E81, E82, E87 and E88, sorted by engine: 125i and 130i N52B30, 135i and 1M N54B30, 135i N55B30.
You will find forged pistons and forged connecting rods for the 3.0L 24V, tri-metal big end and main bearings, reinforced head gaskets, performance intake and exhaust valves with their springs, collets and stem seals, CATCAMS camshafts and DINAN performance air filters.
Everything needed to make a boosted N54 or N55 live, on the road and on track.
Every uprated engine part for the BMW 1 Series F20 and F21, sorted by engine: 114i, 116i, 118i and 120i N13B16A, 116i and 118i B38B15A, 125i N20B20, 120i and 125i B48B20, M135i N55B30, M140i B58B30.
The range covers forged pistons and connecting rods, a forged crankshaft for the EP6/N13, tri-metal big end, main and side bearings, reinforced head gaskets, SUPERTECH intake and exhaust valves with springs, guides, collets and stem seals, ARP head and main studs, ARP con rod bolts, NGK iridium spark plugs and DINAN performance air filters.
Every uprated engine part for the BMW 2 Series F22 and F87, sorted by engine: 218i B38B15A, 220i and 228i N20B20, 228i N26B20, 220i and 230i B48B20, M235i and M2 N55B30, M240i B58B30, M2 Competition and M2 CS S55B30.
The category brings together forged pistons and connecting rods, tri-metal big end and main bearings, reinforced head gaskets for the N55, B58 and S55, performance intake and exhaust valves with springs, collets and stem seals, ARP head and main studs, NGK iridium spark plugs and DINAN performance air filters.
Uprated engine parts for the BMW 2 Series G42, split across three engines: 220i B48B20A, 230i B48B20B and M240i B58B30B.
The category covers forged pistons and forged connecting rods for the 2.0 16V B48 and the 3.0 24V B58, tri-metal big end and main bearings, the reinforced B58B30 head gasket, performance intake and exhaust valves with their springs, SUPERTECH / FERREA collets and stem seals, plus ARP head studs and main studs.
Uprated engine parts for the BMW 3 Series E30, with three dedicated pages: 325i M20B25, M3 S14B23 and M3 S14B25.
The category covers forged pistons for the M20B25, M42B18, S14B23 and S14B25, forged six-cylinder connecting rods with a 135 mm centre to centre length, forged S14 crankshafts, tri-metal big end and main bearings, reinforced COMETIC head gaskets, intake and exhaust valves with springs, guides, cam followers, collets and stem seals, CATCAMS camshafts, KENT CAMS vernier cam pulleys, ARP studs and con rod bolts, plus an uprated VIBRA-TECHNICS engine mount.
Uprated engine parts for the BMW 3 Series E36, sorted by engine: 320i M50B20 and 325i M50B25 with or without VANOS, 323i M52B25 and 328i M52B28 single VANOS, M3 S50B30 and S50B32.
The category covers forged pistons for the M50, M52 and S50, forged six-cylinder rods with a 135 mm centre to centre length, forged S50 crankshafts, tri-metal big end and main bearings, reinforced COMETIC head gaskets, SUPERTECH intake and exhaust valves with springs, guides, cam followers, collets and stem seals, CATCAMS camshafts, ARP studs and bolts, FUEL INJECTOR CLINIC 1000cc injectors and a VIBRA-TECHNICS engine mount.
Uprated engine parts for the BMW 3 Series E46, sorted by engine: 323i and 328i M52 double VANOS, 325i M54B25, 330i M54B30, M3 and M3 CSL S54B32.
The category covers forged pistons for the M52B28, M54B30 and S54B32, forged six-cylinder rods with a 135 mm centre to centre length, tri-metal big end and main bearings, reinforced head gaskets, SUPERTECH intake and exhaust valves with springs, guides, collets and stem seals, CATCAMS camshafts with rocker arms and the VANOS delete sprocket, ARP studs and bolts, NGK spark plugs, FIC injectors, a SYTEC fuel pump and VIBRA-TECHNICS engine and gearbox mounts.
This page brings together the uprated engine parts for the BMW 3 Series E90 and E92, sorted by engine code: N52B30, N53B30, N54B30, N55B30 and the S65B40 V8 of the M3.
You will find forged pistons and forged connecting rods, tri-metal big end and main bearings, performance intake and exhaust valves with their springs, collets and stem seals, COMETIC head gaskets, ARP head studs and con rod bolts, CATCAMS camshafts, a VIBRA-TECHNICS uprated engine mount and DINAN and BMC performance air filters.
Pick the sub-category matching your engine to see only the parts that fit.
All the uprated engine parts for the BMW 3 Series F30, F31 and F34 and for the M3 F80 are gathered here by engine code: N13B16A, B38B15A, N20B20, N26B20, B48B20, N55B30, B58B30 and the S55B30 of the M3.
The range covers forged pistons and forged connecting rods, tri-metal big end, main and side bearings, a forged crankshaft, SUPERTECH performance valves with their springs, guides, collets and stem seals, reinforced head gaskets, ARP head studs, main studs and con rod bolts, NGK iridium spark plugs and DINAN performance air filters.
Choose your engine sub-category to see only the parts that fit.
This page gathers the uprated engine parts for the BMW 3 Series G20 and the M3 G80, sorted by engine code: B46B20B, B48B20A, B48B20B, B58B30 and the S58B30 of the M3.
The parts in stock cover the B48, B58 and S58B30 engines: forged pistons and forged connecting rods, tri-metal big end and main bearings, performance intake and exhaust valves with their springs, collets and stem seals, a reinforced head gasket, and ARP head studs and main studs.
Choose your engine sub-category to see only the parts that fit.
This page gathers the uprated engine parts for the BMW 4 Series F32, F33 and F36 and for the M4 F82, sorted by engine code: B38B15A, N20B20, N26B20, B48B20, N55B30, B58B30 and the S55B30 of the M4.
It covers forged pistons and forged connecting rods, tri-metal big end and main bearings, SUPERTECH performance intake and exhaust valves with their springs, collets and stem seals, reinforced head gaskets, ARP head studs and main studs, NGK iridium spark plugs and DINAN performance air filters.
Choose your engine sub-category to see only the parts that fit.
This page covers the uprated engine parts for the BMW 4 Series G22 and the M4 G82, split by engine code: B48B20A and B48B20B for the 420i and 430i, S58B30A and S58B30B for the M4.
For the B48B20 you will find forged pistons and forged connecting rods, tri-metal big end bearings, SUPERTECH performance intake and exhaust valves with their springs, collets and stem seals. For the S58B30 the range covers a reinforced head gasket and tri-metal big end and main bearings.
Choose your engine sub-category to see only the parts that fit.
This page gathers the uprated engine parts for the BMW 5 Series E34 and the M5 E34, sorted by engine code: M20B25, M50B20 and M50B25 with or without VANOS, M60B40 of the 540i, S38B36 and S38B38 of the M5.
It covers forged pistons and forged connecting rods, tri-metal big end and main bearings, CATCAMS camshafts and mechanical cam followers, vernier cam pulleys, performance intake and exhaust valves with SUPERTECH guides, springs, collets and stem seals, reinforced head gaskets, ARP head studs, main studs and rod bolts, and high flow injectors.
Choose your engine sub-category to see only the parts that fit.
This page gathers the uprated engine parts for the BMW 5 Series E39 and the M5 E39, sorted by engine code: M52B25 and M52B28 with single or double VANOS, M54B25 and M54B30, M62B44 of the 540i and S62B50 of the M5.
It covers forged pistons and forged connecting rods, tri-metal big end and main bearings, CATCAMS camshafts with their mechanical cam followers, performance intake and exhaust valves with SUPERTECH guides, springs, collets and stem seals, reinforced head gaskets including an ATHENA one for the M62B44, ARP con rod bolts and main studs, and an oil cooler adapter.
Choose your engine sub-category to see only the parts that fit.
The BMW 5 Series E60 section covers the uprated engine parts we stock for its six-cylinder and V8 units: 525i M54B25, 525i and 530i N53B30, 530i M54B30, 530i N52B30, 545i N62B44, 550i N62B48 and the M5 V10 S85B50.
You will find forged pistons, forged connecting rods, tri-metal big end and main bearings, performance intake and exhaust valves with their guides, springs, collets and valve stem seals, CATCAMS sport camshafts, COMETIC MLS head gaskets and ARP fasteners: con rod bolts, head studs and main studs.
The BMW 5 Series F10 covers the four-cylinder, six-cylinder and V8 units: 520i and 528i N20B20, 523i, 528i and 530i N53B30, 535i N55B30, 550i N63B44A and N63B44B, M5, M5 Competition and M5 30 Jahre S63B44B.
This page brings together forged pistons, tri-metal big end and main bearings, uprated head gaskets, performance intake and exhaust valves, SUPERTECH valve springs with their retainers, SUPERTECH and FERREA collets and valve stem seals, plus a DINAN sport air filter.
This page gathers the uprated engine parts for the BMW 5 Series G30: 530i B48B20B, 540i B58B30 in 340 and 360hp, and M550i N63B44C.
You will find forged pistons and forged connecting rods for B58B30 and B48B20, tri-metal big end and main bearings, uprated head gaskets, performance intake and exhaust valves with their springs, SUPERTECH and FERREA collets and valve stem seals, ARP head studs and main studs, plus NGK spark plugs.
The BMW 6 Series E63 E64 covers the 630i N52B30 and N53B30, the 645Ci N62B44A, the 650i N62B48 and the M6 V10 S85B50.
This page brings together forged pistons and forged connecting rods for the S85B50, tri-metal big end and main bearings, MLS head gaskets including the COMETIC unit for the V10, performance intake and exhaust valves with their springs and valve stem seals, CATCAMS sport camshafts and ARP fasteners: con rod bolts, head studs and main studs.
The BMW 6 Series F06 F13 covers the 640i N55B30, the 650i N63B44A and N63B44B, the M6 and the 575 and 600hp M6 Competition, all S63B44B.
This page brings together forged pistons for the S63B44 and N55B30, tri-metal big end and main bearings, uprated head gaskets, performance intake and exhaust valves, SUPERTECH valve springs with their retainers, SUPERTECH and FERREA collets, valve stem seals and DINAN sport air filters.
The BMW Z3 E36 is broken down by engine here: 2.3i M52B25TU, 2.8i M52B28 single VANOS and M52B28TU double VANOS, 3.0i M54B30, then the Z3M 3.2 S50B32 and S54B32.
The page gathers forged pistons, connecting rods and crankshafts, tri-metal bearings, uprated head gaskets, SUPERTECH valves including an Inconel version with guides, springs, collets, valve stem seals and mechanical cam followers, CATCAMS sport camshafts with rocker arms, a VANOS delete sprocket, ARP fasteners, uprated engine and axle mounts, high flow injectors and NGK spark plugs.
The BMW Z4 E85 is broken down by engine here: 2.5i M54B25, 3.0i M54B30, 3.0 N52B30 and the 343hp Z4M S54B32.
The page gathers forged pistons and connecting rods, tri-metal bearings, uprated head gaskets, performance valves with SUPERTECH guides, dual springs, collets and valve stem seals, CATCAMS sport camshafts with rocker arms, a VANOS delete sprocket, ARP fasteners, an uprated engine mount, FIC high flow injectors and NGK spark plugs. Parts for the N54B30 twin-turbo six are also listed here.
The BMW Z4 E89 page brings together uprated engine parts for the E89 roadster, variant by variant. Six engine versions are covered:
This page also carries tri-metal big end bearings for the N20B20 and N26B20 blocks. Pick your engine first, then the family of parts your build needs.
The BMW Z4 G29 page gathers uprated engine parts for the G29 roadster, built from 2018. Three engine versions are covered:
Beyond the sub-categories, the page carries twenty-five parts directly for the B48 and B58 blocks: forged pistons and connecting rods, intake and exhaust valves, valve springs, valve stem seals, SUPERTECH and FERREA collets, tri-metal big end and main bearings, an uprated head gasket, ARP head studs and main studs.
This category lists the trimetal connecting rod bearings available for the BMW 1.9 8-valve engine, code M43B19.
Only one part family is stocked here today: a set of trimetal connecting rod bearings by ACL Race Series and King Racing, in standard size and in repair sizes. Stronger than the original bearing, the trimetal shell is intended for tuned engines running under heavy load.
No other part family is listed for this engine code at present.
This category lists the trimetal connecting rod bearings available for the BMW 1.8 8-valve engine, codes M40B18 and M43B18.
Only one part family is stocked here today: a set of trimetal connecting rod bearings by ACL Race Series and King Racing, in standard size and in repair sizes. Stronger than the original bearing, the trimetal shell is intended for tuned engines running under heavy load.
No other part family is listed for this engine code at present.
KING RACE tri-metal main bearings, OEM size, BMW E30/E36 318i/is 1.8 SOHC/DOHC 8V/16V M40B18, M42B18, M43B18
Set of ACL RACE / KING RACING thrust washers for VAG 1.8/2.0 8V/16V and 1.8T 20V engines:AUDI A3 S3 8LAUDI A4 B5 B6 B7AUDI TT 8NSEAT Ibiza Cupra / Cupra R 6K 6LSEAT Leon / Cupra R 1MVW Corrado / G60VW Golf 1 / GTIVW Golf 2 / GTI / G60VW Golf 3 / GTIVW Golf 4 / GTIVW New BeetleVW Polo GTI Cup EditionVW Scirocco 2
Set of 8 trimetal connecting rod half-bearings for BMW inline-four M40, M42, M43 and M44.Brands and treatments: ACL Race and King Racing Compatibility: E30, E34, E36, E46, Z3 Engine codes: M40B16, M40B18, M42B18, M43B16, M43B18, M43B19, M44B19 Available sizes: standard to +0.50 mm, increased-clearance version (HX)
NSB Concept offers a comprehensive range of reinforced BMW engine parts, including forged pistons, forged connecting rods, uprated valves, high-performance cylinder head gaskets, ARP head studs, tri-metal bearings, uprated valve springs and balanced crankshafts. Every component is carefully selected from the world's leading manufacturers to guarantee optimal performance and reliability across the whole BMW range, from the compact 1 Series to the prestigious M3, M4 and M5.
Our exclusive 3-click navigation lets you find instantly the parts that fit your BMW engine, whether it's the legendary naturally aspirated S50/S54 straight-sixes, the modern N54/N55/B58 turbo units, or the S65/S63 V8s. Our solutions suit historic rally enthusiasts competing at the Monte Carlo Rally as much as tuners chasing 200bhp, 250bhp or over 300bhp. Every build is tailored to the specific demands of track and road use alike, with particular attention to ///M engines.
With two permanent stock locations in France and Central Europe, we guarantee the best prices in Europe and immediate availability. Our technical expertise of over 15 years lets us advise you precisely on the best combinations for your BMW project. Orders placed before 5pm are dispatched the same day, with delivery across Europe within 72 hours. BMW is a registered trademark. NSB Concept is an independent reseller. Use our configurator or contact our BMW specialists.
Q: Which BMW engines are most popular for tuning? A: The N54/N55 straight-six engines (335i, 135i), the S54 (E46 M3), the S50 (E36 M3) and the B48/B58 four-cylinder units account for 75% of our sales. We offer proven configurations reaching 400 to 800bhp depending on the engine architecture.
Q: Are ARP head studs essential on my turbo BMW? A: For any build exceeding standard output by more than 30%, we strongly recommend ARP head studs. They guarantee optimal clamping load and prevent head gasket failure, particularly on the heavily stressed N54/N55/B58 units.
Q: Do you offer solutions for classic and youngtimer BMWs? A: Absolutely, we stock specific parts for the M10, M20, M30 and S14 engines of the classic E30, E28 and E34 models. Our components preserve the original character while offering modern reliability for historic rallies and spirited road use.
