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View Full Version : how much compression is a Wiseco 12.5:1



hotrodbelair
03-13-2007, 05:54 PM
i know the 400ex pistons are off because it came off the xr design but how much compression is there 12.5:1 compression piston. and im also wondering if i can run a je piston in my 440 sleeve i got with a wiseco piston?

416exriden
03-13-2007, 06:25 PM
i hope it's 12:5:1

wilkin250r
03-13-2007, 06:41 PM
Originally posted by 416exriden
i hope it's 12:5:1

Next time you want to post pictures calling somebody else a dumbass, you had better make sure you're right, because when you are wrong (like right now) YOU are the one that looks like a complete idiot.

Or, to be safe, just don't post those type of pictures at all, especially in the tech sections. Leave the stupid, immature junk for the Open Forum. :mad:

wilkin250r
03-13-2007, 06:56 PM
To answer the original question, the 12.5:1 pistons usually end up right about 11:1 on the stock bore, but the 440 might be a little different.

Yes, you can use a JE piston in a Wiseco sleeve. but you will probably need to go to the next bore size. I doubt the dimensions of your new JE piston will match exactly within 0.001 inch to your old Wiseco piston. The next bore size will give you a clean slate to set new clearances properly.

ohsobad_chevy
03-13-2007, 09:44 PM
Originally posted by wilkin250r
Next time you want to post pictures calling somebody else a dumbass, you had better make sure you're right, because when you are wrong (like right now) YOU are the one that looks like a complete idiot.

Or, to be safe, just don't post those type of pictures at all, especially in the tech sections. Leave the stupid, immature junk for the Open Forum. :mad:

http://i32.photobucket.com/albums/d44/ohsobad_chevy/owned.gif

http://i32.photobucket.com/albums/d44/ohsobad_chevy/owned-babyseal-1.gif

Sorry.....couldn't resist.....but I love it when some smart *** gets put in his place.......doesn't happen enough. :ermm:

Grant Casey
03-14-2007, 04:01 AM
j

redracer250
03-15-2007, 06:41 PM
U guys r the dumbasses answer the ****in question dont ***** about wat some1 said

redracer250
03-15-2007, 06:43 PM
O yea if 1 of u ***gots report me idc becuz I'll be back

416exriden
03-15-2007, 06:48 PM
hey ohsobad_chevy

ohsobad_chevy
03-15-2007, 08:44 PM
Originally posted by 416exriden
hey ohsobad_chevy

....What are you doing tommorow night, big boy. ;)

JOEX
03-15-2007, 09:25 PM
416exriden
ohsobad_chevy
Grant Casey
redracer250

We don't want this kind of garbage in the Tech sections. Don't really want it in the Open section either:ermm: