[79 Phoenix]

Well, I bought a 76 557 block 400! Seems very solid. So extra motivation to get the rest of the car ready for the engine and hopefully fire it up by spring...maybe before.

Now I need to figure out what to do with the two 350's I have... The original and the one I bought last spring.

[Baron Von Zeppelin]

You might want to use a pair of the 350 heads on the 400 engine , for better compression ratio / power.
Unless the new 400 is already sitting on go.
It will probably just barely be around 8:1 comp ratio as-is.

Congrats on finding a suitable replacement engine

[79 Phoenix]

Originally Posted by Baron Von Zeppelin

You might want to use a pair of the 350 heads on the 400 engine , for better compression ratio / power.
Unless the new 400 is already sitting on go.
It will probably just barely be around 8:1 comp ratio as-is.

Congrats on finding a suitable replacement engine

Thanks! Engine ID is...1976 A or B Body 2 bbl carb 170 HP Heads= 6X Block# = 500557 Code# = X4
So, a low performance 400, which is okay... It runs good and I don't want to put more money into the #94 heads so I will leave building it up more to the next owner... On video, engine sounded real healthy but not lopey... so I assume it's pretty much stock. It had a serious rebuild several years ago and does have an Edelbrock intake though. I don't know if any enhancements were made to the 6X heads or the cam. I know cam, lifters and cam bearings were new with rebuild... So we'll see come spring...