wiseco vs pro-x diameter

[fourjs]

are the pro-x and the wiseco the same size in diameter?

the piston that was in the banshee has 150 on it, pro-x is 66.5mm, ( I think)

but was going to put the same size wiseco in it ,

would it require a boring or just a honing to get the rings to set?

 

thanks...

[locogato11283]

depends. whats the reason for the rebuild? are the cylinder walls all messed up?

[FireHead]

Very generally speaking forged pistons require a larger bore than cast pistons. I can look up the bore size for you for either if you give me the piston part number. :geek:

[fourjs]

reason for rebuild was low compression on right cylinder

wall has minor scratch on it, should come out with honing

 

so pro-x are forged and wiseco are are cast?

 

as far as the part numbers, I was looking at magic racing for the wisecos,

would have to shop around to find some pro-x, thats why I was wondering

if the diameter where app. the same, did not wont to order and have

it not work correctly, especially if it needs to be cleaned up a little more

than I thought

 

thanks...

[shanYE west]

the Pro-x pistons are casted.

 

With both pistons being 66.5. Generally the (forged pistons) wiseco will require a bigger piston/cylinder clearance over the (casted pistons) Pro-X.

[mopar1rules]

exactly, the wisecos are forged and the pro-x's are cast.

 

the reason for the larger bore needed on the forged wisecos, is cause they expand at a different rate and more than cast pistons.

 

if u go w/the wisecos, give it a little more time to warm up, or you could have a cold siezure, if you give it hammertime too soon.

Edited April 24, 2008 by mopar1rules