409ina50buick
Active Member
My name is Jim, and I am as old as dirt and I have loved the 348/409 engines since I first saw one in 1962 (348). It was my sister's boy friend's car and I used to help him replace bent and broken pushrods about every two weeks. I didn't buy one until 1992, and it was a truck engine. I had it bored 0.120 over, line honed, and decked. I put hardened valve seats and a huge set of valves I bought out of Australia (no performance parts in those days). The rods were resized, polished and shot peened, and honed for floating pins. I installed a HP/HV SB oil pump and a splash shield. I had it internally balanced. A Com Cam 280 HE cam was installed behind a Cloyes True Roller timing chain with Rhodes lifters (I love 'em) with roller rockers and PR guides. The intake was converted to take a Holley 750 DP and was port matched to the heads. Using a trio of hand machined adapters, I installed a 350 Mallory distributor in it. I had Ross make a set of pistons for it (hyperutectic). Static CR is 9.5 to 1. Squish is 0.035". Then I got married and the engine has sat in my shop(s) ever since. I recently built a new shop and a 1950 Buick Special 43D Sedanette, and the 409 is going into the Buick. I just ordered some Sanderson headers for it and a set of finned aluminum valve covers. I am looking forward to hearing this old beast roar. It will sit in front of an explosion proof bell housing, 11" clutch, and a Muncie M-22.
Jim
Jim
Nice project.
Sounds like, an interesting project.
It will be plenty Kool, when finished.
