Mast: LS7 265cc 4.000" Cylinder Heads [Camaro Corvette CTS V, LS7] Exhaust Valves:1.600" Solid Inconel - Hyd Roller while the rear is 31

while the rear is 31

Often belt slip is noticed when the system squeals

Weight Comparison One-piece 20

custom built to order

stainless fasteners

Mast: LS7 265cc 4.000" Cylinder Heads [Camaro Corvette CTS V, LS7] Exhaust Valves:1.600" Solid Inconel - Hyd Roller while the rear is 31Trying to improve on the best factory small block cylinder heads ever built is no small endeavor. And yes, GM's 12 degree LS7 castings are the best small block heads of all time regardless of engine make trumping even the legendary Ford Cleveland heads. With a full CNC rubdown, monster 2. 20 1. 61 inch valves, and raised 270cc intake ports to go along with a flat 12 degree valve angle, factory LS7 heads flow 360 cfm out of the box. That's big block