Originally Posted by
Dusty
I dont know what MC's price is now but at the time i did mine, i paid $725 to get a std set of head cleaned up they replaced two valves, i provided keepers, locks retainers and springs. For an additional 500, i was able to step up to the aluminium heads w/ SS valves, bushed guides, guide plates , the equivilent of ported exhaust ports with better angles and flow and a deep oil return channel cast into the head to improve oil drain back over the old factory cast heads You only do it once why not go all out especially for what it would cost to port and finish a set of heads as nice as the edelbrocks, oh yeah and the weight savings.
My experience on the differences in compression was with my 401 and forged pistons which were 9.8:1 with 58cc heads, 10.2:1 with the 54cc Edelbrocks and 10.5:1 with the 51cc heads.