Bought a fresh machined .060 over lq4, h beam rods, and pistons off here. Decided to go with an aluminum 5.3 for my project. Trying to resell the lq4 stuff locally, and its not gone yet. Got a set of 243's on trade for other parts....

So what about 243's on the .060 over block if I put it together for who knows what project???

 

They will work if thats what you're asking.

 

Ok thanks. Unmodified bolt on and go? I know they are used oem on 4.0 bores. Never heard of them on close to ls3 bore.

 

Yessir bolt on and go.

 

That specific block that you purchased had a set of 243's on it before.

Your good to go!

 

OK, thanks! Now need something to put it in. My 355k mile 4.8 crusty express van needs replacing......

Do you know what the compression ratio was with the cp pistons and the 243's? I havent even unwrapped the pallet yet....