CNC Ported Magnum Alum. Chev BB Head Bare Pair 357cc/121cc
24° BBC HeadsCompetition Package Assembled Pair 357cc Fully CNC Ported 121cc Chambers
* Features Titanium Retainers
24°Chev BB Heads300cc Oval Port Fully CNC Ported 112cc Chambers Complete w/1.550 OD Hyd. Roller Springs
24° Chev BB Heads 300cc Oval Port Fully CNC Machined 113cc Chambers Complete w/1.550 Pacaloy Solid Rlr Springs