[GAc10boy]

Just got my #416 casting 305 HO heads back for my 307 build and man, they look great! I kinda went overboard on them but I figured if I went through the trouble to find them and will go through the trouble to build the engine, I might as well get them in tip top shape.

These heads are what all of the 307 Chevelle guys swear by bc they are 58cc heads and raise the compression on a 307 to around 9.5:1 depending on head gasket. I found a set super cheap off CL but I took them to a local hot rod machine shop and had them hot tanked, decked, a Serdi valve job, hardened valve seats, and new Lunati springs and retainers installed to match the Lunati 60101 cam I'm planning to run. It's not the cheapest option but coupled with the other things I'm planning, the '70 should run on real well and get good gas mileage. And I wanted to build something different and more unique than a 350 or LS. You never know, Oaky might get the LS but for Big Al, a built 307 will do.