I know someone who has a 396 forged lt1 for sale.

It originally started off as a 383 rebuild, but had high oil consumption, so it was rebuilt again into the 396.

22.5 cc dish on the piston.

If I get it, I'm going to boost it.

Is there anything unusual to a 4.037 bore? I heard somewhere that 4.050 is the max the lt1 can be bored to.

Would you have any concerns about a 4.037 inch bore boosted lt1?

 

4.037" is an unconventional bore size. Usually they go up in .01" increments.

And you realize 4.050" is larger than 4.037", right?

 

Whatever is going on with the odd size... but it is a good idea to sonic check the cylinders before building an engine for boost; otherwise you don't know if you have any thin/weak spots. maybe see if the guy had this done.

 

I am assuming the price is right. I think he is concerned that since its so close to the max that there could be problems. I would be a little concerned anytime buying without knowing everything that was done and if the guy really knew what he was doing.

 

the other thing is that with those pistons and assuming the usual LT1 heads 54-58 cc and a .040 gasket and a NA configuration, the roughly calculated static comp ratio is anywhere from 9.9-10.3, if I get that right so that isn't too boost friendly.

The other thing is that the guy had to build it twice to maybe get it right. Just sayin.