ACL Race rod bearings for Porsche 930

ACL Race rod bearings for Porsche 930 combine a trimetal design, high-strength overlay plate and construction developed for higher engine RPM conditions.

Hardened steel backs on the rod bearings improve support for the bearing lining and retention in the housing. The set is designed to help maintain consistent clearances and support the formation of hydrodynamic oil films.

• High-strength overlay plate with reduced thickness for improved fatigue properties
• Hardened steel backs on all rod bearings
• Increased crush for improved bearing retention in the housing
• Elimination of flash plating on the back for improved heat transfer and grip in the housing
• Increased eccentricity to compensate for bore distortion at high RPM
• Tight, consistent wall tolerances to help maintain consistent clearances

Suitable for: Porsche 911 930 / I.

Engines: 930 (930.10, 930.03, 930.12, 930.09, 930.19). Please check your vehicle’s engine code (registration document or VIN) before ordering; if in doubt, contact us and we will check for you.

Sizes

STD is the standard size for an unground crankshaft. Undersizes (−0.25 mm, −0.50 mm …) are for a reground crank, and “+0.025 mm clearance” (X) is for highly stressed engines. Your machine shop chooses the size after measuring.