Forged crankshaft BMW M3 E30 S14B25

Here we offer you a forged Crankshaft from BrandZRPfor BMW M3 E30 engine 2.5 16V S14B25.

Find the assembly instructions in the tab "Download" ci-dessus.

Find below the link (click on the image) of the reinforced crankshaft bearing screws compatible with your BMW S14B25 engine:

Technical characteristics

• Stroke: 87.00mm (OEM)
• Crankshaft bearing diameter: 54.99mm
• Diameter Crankpins Connecting rods: 47.991mm
• Steel type: 4340
• Weight: 20.5Kg
• CNC machining
• ION Nitride (Plasma) Hardening Process
• Thermal treatment
• Shot blasting to release stresses
• Micro-polishing of Crankpins and Main Journals
• Crankshaft X-ray check

The ZRP Brand is the subsidiary of DRAKOS ENGEERING renowned for its EXPERIENCE in the design of high-performance mechanical parts. ZRP specializes exclusively in forged engine parts such as forged Connecting rods or, like here, a Crankshaft forged in 4340 High Tensile Steel. ZRP Crankshafts are delivered factory balanced (report provided). CounterWeight Profiles in undercut minimize the Weight and therefore the rotating mass. The drilled Main Journals also contribute to the weight reduction of the ZRP Crankshaft. On the other hand, straight and chamfered oil passages optimize lubrication.