Something Different

[ff_jeff]

In NHRA Pro Stock, engines reach well over 130% VE and how they see almost 3HP per CI without FI or nitrous.

Excerpt from Big Block Chevy Performance

355ci Twin Turbo making 800 HP at 14PSI... that's 2.25HP per CI

A few less cubes and a little more pressure... I don't think it's completely out of the question to assume you could make this kind of power and drive it daily.

not 5.3's and not blown.

[Show&Go]

I dont think you can compare a big block to these LS motors. Their displacement is through the roof. I think power is directly related to size untill you factor in FI. And NHRA Pro Street cars are rebuilt everytime they are ran....

[mean05]

not 5.3's and not blown.

friends TT viper put down 1360 on 20psi...still has 8psi to go with a 510...flywheel hp says he is making 3hp/c.i.

also have a ford cobra with a TT kit on it at 25psi he is making 1021rwhp with a stroked 281...which his comes out to a 302

i can keep on going, im not arguing with anyone in this thread but 650 has already been made from a 5.3 in this thread on the stock bottom end...as Quik stated Synergy did 850 also, no im not saying just anyone can do it but it can be done