A guide to building the lil guy. The Mighty 300

For those doing a mild rebuild. The sealed power Hyper pistons are a pretty good price on Rockauto. Only 8.4 compression but a lot better than the stock soup cans. Deck the block.030 and mill the heads .020 and you are right at 9.75 for the iron heads. .030 off the aluminum heads and you are around 10.2. The 75-76 Oddfire V6 rods are like the later 350 capscrew rods but the right length for the 300.

https://www.rockauto.com/en/catalog/buick,1966,skylark,4.9l+300cid+v8,1319206,engine,piston,5620