ROVER / MG - Reinforced engine parts

Manufacturers

ROVER / MG - Reinforced engine parts

ROVER / MG - Reinforced engine parts

ROVER / MG - Reinforced engine parts 

Subcategories

  • 1.4L 16v - 14K4F
    1.4L 16v - 14K4F
    This page gathers what we hold for the 14K4F, the 1.4 16v K-Series fitted to Rover and MG. A single WÖSSNER forged piston kit covers it, in three sizes: 75mm at 12.5:1, 75.5mm at 12.7:1 and 76mm at 12.8:1. Standard size and both oversizes therefore run through one reference, and the compression ratio rises with the bore. These are figures for a highly tuned naturally aspirated build, not for boost: the T16 in this same branch starts at 8:1. Forged connecting rods and the rest of the bottom end for other K-Series engines are listed on their own engine code pages.
  • 1.8L 16v - 18K4F
    1.8L 16v - 18K4F
    The 18K4F is the 1.8 16v K-Series of Rover, MG and the Lotus Elise S1. It is the only page in this branch to cover the whole rotating assembly: WÖSSNER forged pistons at 80mm and 12:1, 80.5mm and 12.1:1, 81mm and 12.3:1, together with a set of ZRP I-beam forged connecting rods on ARP2000 bolts. Pistons and rods come from the same page, oversizes included, with no need to source the rod elsewhere in the catalogue. The compression ratios shown suit a naturally aspirated engine taken high in the rev range.
  • 2.0L 16v - T16
    2.0L 16v - T16
    The T16 is the 2.0 16v of Rover and MG, and it is not built like the neighbouring K-Series engines. The WÖSSNER forged piston kit held here comes in four sizes: 84.5mm at 8:1, 85mm at 8.1:1, 85.5mm at 8.2:1 and 86mm at 8.3:1. These are low compression ratios, meant to take boost pressure rather than to raise compression. It is also the widest rebore range in this branch, up to 1.50mm over standard, which leaves room on a block that has already been machined once.
  • 1.6L 16v - 16K4F
    1.6L 16v - 16K4F
    This page gathers what we hold for the 16K4F, the 1.6 16v K-Series from Rover and MG. For now it features the ARP2000 M8 connecting rod bolt kit, which replaces the original bolts and is tightened by stretch as set out in the ARP instruction sheet. Other bottom-end parts for K-Series engines are listed on the page of their own engine code.
  • 1.8L 16v - 18K4G
    1.8L 16v - 18K4G
    This page gathers what we hold for the 18K4G, the 1.8 16v K-Series of the Lotus Elise (137 hp). For now it features the ARP2000 M8 connecting rod bolt kit, which replaces the original bolts and is tightened by stretch as set out in the ARP instruction sheet. Other bottom-end parts for K-Series engines are listed on the page of their own engine code.
  • 1.8L 16v - 18K4K
    1.8L 16v - 18K4K
    This page gathers what we hold for the 18K4K, the 1.8 16v K-Series of the Lotus Elise (160 to 193 hp, Elise 111 S). For now it features the ARP2000 M8 connecting rod bolt kit, which replaces the original bolts and is tightened by stretch as set out in the ARP instruction sheet. Other bottom-end parts for K-Series engines are listed on the page of their own engine code.
  • 1.1L 16v - 11K4F
    1.1L 16v - 11K4F
    This page gathers what we hold for the 11K4F, the 1.1 16v K-Series from Rover (Rover 25). For now it features the ARP2000 M8 connecting rod bolt kit, which replaces the original bolts and is tightened by stretch as set out in the ARP instruction sheet. Other bottom-end parts for K-Series engines are listed on the page of their own engine code.
ROVER / MG - Reinforced engine parts

Revive the British spirit of motorsport with our specialist range of reinforced ROVER / MG engine parts, designed for enthusiasts of these iconic British cars. Our technical range brings together K-Series-specific WISECO and JE PISTONS forged pistons, reinforced steel MANLEY and ZRP connecting rods, FERREA racing valves, COMETIC multi-layer head gaskets resistant to thermal issues, high-tensile ARP head studs, ACL and KING performance bearings, SUPERTECH dual-spiral valve springs, reground camshafts and balanced crankshafts. These premium parts transform the K-Series 1.4/1.6/1.8 VVC engines, the rugged turbocharged T-Series fitted to the MG ZT, and the legendary Rover V8 derived from Buick.

Our 3-click selection system points you to the right solution for your project: an MGF Trophy prepared for sprint racing, an MG ZR 160 optimised for slalom, a Metro 6R4 replica, or a Rover 220 Turbo for historic rally. Proven builds reach 200hp on the naturally aspirated K-Series VVC and up to over 300hp on the turbocharged T16, while solving the well-known weak points of these endearing engines.

Dedicated stock in France and a European network guarantee immediate availability with delivery in 48 to 72 hours. Our deep expertise in British engines lets us offer the best prices in Europe on these specific parts. ROVER and MG are registered trademarks. NSB Concept is an independent reseller. Use our configurator or get in touch with our ROVER / MG specialists.

FAQ

Q: How do you fix the head gasket problems on K-Series engines? A: A definitive solution with COMETIC MLS multi-layer gaskets, ARP 2000 head studs and a modified cooling circuit. WISECO forged pistons and ZRP connecting rods then allow a reliable 180-200hp. This preparation removes the K-Series' main weak point.

Q: Can the T16 turbo engines (ZT190, ZS180) really take 250hp+? A: A robust architecture that easily handles this power. With JE PISTONS forged pistons, MANLEY H-Beam connecting rods, uprated gaskets and a hybrid turbo, 280hp is achievable for spirited road use. The cast-iron block absorbs thermal stress perfectly.

Q: Can a Rover 3.5/3.9/4.6 V8 be made reliable for intensive use? A: These Buick-derived V8s respond excellently to tuning. High-compression forged pistons, reinforced connecting rods and performance camshafts allow a reliable 300hp naturally aspirated. An architecture proven in competition since the 1970s, particularly in rally raid.