je blower pistons 4.600 bore
 

two sets je blower dish pistions 4.600 bore $1000 both sets

compression height???

8 to 1

ok lets try this again... pin height... as in what rod length with what stroke in what block std or tall...

10.200 deck 6.700 rod 4.500 stroke 124cc head

WOW that pin must be right up in there... way into the oil ring land... they using a true arc lock or a pin button, I would be using a button in this case

post some detailed pics of the piston so we can see the configeration, ring placement, deck style... etc...

1.307 pin

1.307 + 2.250 + 6.700 = 10.257
something wrong with the math bud... so what I'm thinking is that you have a rod that is 6.635 length which makes more sense, that adds up to 10.192 putting the piston down the hole .008" :cartman: