[1969GPSJ]

It should not matter. 1969 was the last year that used the old 2 bolt motor mounts. 70 and up used the newer style, and the '76 engine should be able to use mounts compatible with the '71 Lemans, especially since he has had the '76 engine in a '71 firebird.

[79 Phoenix]

That's good to hear. I appreciate everybody's help with these questions!

[MatthewKlein]

Originally Posted by 79 Phoenix

That's good to hear. I appreciate everybody's help with these questions!

Is this 400 a used stock engine? My plan would be to cc both sets of heads and try to get the compression up to 9 or 9.5 and change the camshaft.
Those 94 heads should have a smaller combustion chamber.

[79 Phoenix]

Originally Posted by MatthewKlein

Is this 400 a used stock engine? My plan would be to cc both sets of heads and try to get the compression up to 9 or 9.5 and change the camshaft.
Those 94 heads should have a smaller combustion chamber.

As far as I know it is stock or near stock. I does have a Performer intake & Quadrajet which are not original. Cam bearings were replaced so I assume cam was also. So it may have a better than stock cam. No idea if heads have had performance work done on them. Previous owner didn't know but said it "ran strong".

Right now I just want to work towards getting this running and on the road... Then later work with heads, cam, etc. if I want or the next owner wants.

[79 Phoenix]

I went ahead and bought the 557 block 400! Everything seems good at this point. Startup is probably months away...Hopefully by spring. So much other preparation to do. Thanks to everyone who helped me evaluate what I was looking at!