I found a really good deal for a Cummins engine, complete, needs rebuilt, but because of the low price i am skeptical that the block and head are free of cracks, how can i test the block and head quick and on the fly before i buy it?
Pulling an engine out of an salvage yard
(Big Block Chevy)
I understand how to do the test.
assuming the engine is warm/hot
But What are numbers i should look out for?
What is considered red flag and what is not?
What is are good numbers?
and if the cylinder(s) has low numbers does that...