3.1 pistons with a 3.4 crank in 3.1 block

[tjbecht]

has any one tried this or can it be done?????

[rudefyet]

3.1 and 3.4 have the same stroke...so...um...why?

i assume the crank is exactly the same...so you aren't going to gain any performance from it

[donk_316]

lol

[StudlyCamaro]

hehe, the crank that came out of my spare 3.4L said 3.1L on it :-D

[TheProfessor]

yes the two cranks are identical

[Guest]

I did this mod and i picked up 55 hp!

[tjbecht]

what did you do exactly

[rudefyet]

LOL

He was kidding...I think....

[geoffinbc]

Yes he was kidding.

[TheProfessor]

i think he was talking about porting the coolant passages in the head

[oil pan 4]

Hey I ported (port matched to the gasket) the coolant out lets on my cylinder haeds and intake manifold.
Don't expect it to do any thing unless you make the steam holes in the cylider head gasket bigger.
It was snowing out and I was bord.