Jay Racing Billet Main Caps for Mitsubishi 4G63 & 4G64 6-bolt

Price:   $295.00

These billet steel main caps are the best available for your Mitsubishi 4G63 & 4G64 6-bolt engine. The design incorporates the maximum cross-sectional area for unmatched strength. CNC machined from the best super tough alloy steel for this application, ensuring trouble-free machining, strength, stability, and durability that you would expect from a bullet-proof set of main caps. These will take all the abuse you can throw at them.

This latest design is fully compatible with the Kiggly Racing 6-bolt Main Girdle.

These main caps will require use of ARP main studs, which can be found HERE. In addition, it is required that the block be line-bored & honed with the installation of these billet main caps.


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  • Model: BMC-DSM6
  • Shipping Weight: 12lbs
  • 5 Units in Stock
  • Manufactured by: Jay Racing




This product was added to our catalog on Saturday 13 December, 2008.