Quote:
Originally Posted by 1930artdeco
I thought the numbers cast into the main caps are how iD a 312 vs a 292?. ...
|
Yes, there are only two choices for the three letter prefix cast into the main bearing caps.
ECZ is the 312.
EBU is everything else, unless it's a DIY modified engine with a 312 crank that's been turned down to fit in the 'smaller' block.