225cc Sbc Strike Force Cnc-ported Alum Heads 78cc Complete Pair For .600" Hr Cam on 2040-parts.com

This is the best deal on the Net for new, fully CNC-ported, 23-degree small-block Chevy heads!!!

Hardcore Horsepower's new "Strike Force R-series" small-block Chevy heads have been given the premier CNC porting treatment utilizing the latest machining developments and tested using new "wet-flow" technology. The chambers are 78cc featuring angled plugs for improved combustion, (also available w/ straight plugs; no other chamber sizes are available).

The 225cc fully-CNC-ported intake runners flow over 300cfm with just a 2.055" valve, making these heads produce much more power on small bore engines like 350's and 383's. Plus, because the exhaust port flows 74% of the intake port at lower lift points - which is a great Exhaust-to-Intake flow ratio for power - these heads will work very well on larger cubic inch engines too.

Strike Force R-series CNC heads feature manganese/bronze valve guides, hardened steel valve seats, stainless steel undercut 2.055" x 1.600" 1-peice valves, extra thick deck surfaces for nitrous, boost, or heavy milling, and are drilled on the ends to accept all accessory mounting brackets. They can be used with off-the-shelf 23-degree pistons, valve train components, and intake manifolds, making them the best and most affordable choice for street/strip or all out competition applications.

*Shown unassembled for clarity.