Swiftune Steel Main Cap Set - Cooper 'S' 4 Bolt
Swiftune’s Super Strong Steel Main Caps offer the ultimate in bottom-end rigidity which is a must for high performance high powered race engines.
When combined with ARP MSA33 the Steel Main Caps will help eliminate Main Cap 'float' and 'crankshaft flex', this enhances the life of the Crankshaft, Bearings and general Engine reliability. This system is used in all of Swiftune’s Competition Engines as only the best is good enough!
Set includes all 3 caps including a 4 Bolt Centre Main Cap to suit 'Thick Flange' Cooper 'S' blocks. Please check what block you have. If you are unsure please send us an email with an image for your block.
Will require line boring and thrust washer locations machining for fitment.