Closed Chamber Big Block Heads 516

Depends what your compression is now. If you're below 10-1 then the gain with the 516's will help. But as was said earlier if your present build is pretty mild then you might not notice the gain.

Why don't you start your own thread and list your 440 as she sits, we're kind of hyjacking whitepunk's thread.

Sorry whitepunk.


Hey, no problem...it's a freebee bump for me!