Power Driven 750-1100 hp 12v Performance Engine Rebuild Kit

The standard head gasket included in the kit is Interstate-McBee. In our experience, they may not be dependable above 400 hp. If you intend to run at or above that power level, upgrade to a Mahle head gasket using the selection below.

14 mm mains up to 900 hp, then a girdle is recommended

12 mm mains up to 800 hp, then a girdle is recommended

Recommended up to 900 hp, then performance rods are recommended

Stage 1 up to 550 hp
Stage 2 up to 850 hp
Stage 2.5 up to 1,000 hp
Stage 3 up to 1,500 hp

Stage 1 head up to 1,000 hp
Stage 2 head 1,000-1,200 hp

Rods are recommended at 900 hp+

Girdles are recommended at 900 hp+ on 14 mm and 800 hp+ on 12 mm