68cc Heads?
Posted: September 21st, 2012, 7:44 pm
Removed the small quench shelf, sunk the speed pro valves, got 68cc's. This also makes the plug a little more centrally located. It's a hemi now, lol.


Jeep - AMC 4.0L and 4.2L Stroker Enthusiasts
https://www.jeepstrokers.com/forum/