[hgiv]

Originally Posted by Squidward

First of all, that is a cool story, 57 year old one family car. Secondly, the fact that a Pontiac bottom end went 250k, assuming untouched, is pretty gnarly. I'm curious, tho, why the heads got replaced, and what they got replaced with. Sounds like a car that was well taken care of.

As much as I hate to give up on a 350, if you aren't concerned about originality, a crate 400 makes sense. It would look the same externally. And it depends on how much DIY skill and desire you have.

How badly the power bug bites you will also play a fun game of finding the next weakest link, especially with the easy power with bigger cubes.

The heads were replaced sometime in the 80's. Good news way they were set up for unleaded gas. Bad news is they are #11s not the original #47. Probably a slight drop in compression but not enough to really change the equation. I also have some #17s and a 69' 4 barrel intake lying around which I would love to use. And yes the bottom end is all original. But the rear main seal is toast.