wiseco 440 piston

[DAVE14]

the stock piston has markings as to what is the front etc .on piston the wiseco looks the same all around , just pop it in ? I guess? the only marking at all I can find is a tiny round bump underneath on the inside in the middle corner of the piston is this the front or does it matter? any help would be greatly apreciated!

[tater_kamik]

yes, it definatel matters since im guessing it is a domed piston. the valves are different sizes and if you put it in backwards, the valves will hit the top of the piston. i cant remember which way it goes though

[MIKE400EX]

The smaller dia. valve pockets go to the exhaust side. If it's a Wiseco piston, or almost every non-OEM, it should have an arrow stamped on the dome that points to the exhaust side.

[DAVE14]

sorry man just had a brain fart its not domed or marked anywhere I can see but obviously the intake & exhaust pockets are different sizes but there pretty close I had to measure to make sure which was which.

thanks for the info that would of been a horrible but stupid mistake !

[slamdak8782]

Me and tater learned that one the hard way but it worked out ok

[tater_kamik]

yeah, but we were drunk when we did it so its all good! i could have sworn we put it in right too.... that what beer gets ya!