NOSS MACHINE 21CC 9 DEGREE BB DOME

These are Noss machine 9 degree big bore domes cut to Driveline specs:

68mm bore size.

9.5mm squish band width with a 10 degree divergent angle cut. Blaster pistons are a 9 degree angle we like a 1 degree divergent angle to help reduce heat.

21cc 

.038" Step

These are the same specs we cut our domes to.