Piston and compression help

[97WarriorRider]

ok guys. I have searched and couldnt find what I wanted to find. im looking at pistons. Im going with .020 wiseco. But its 11:1? I dont wanna have to do the HD head studs. Also what would .020 put the displacement at? and what valves do you guys use?

[97WarriorRider]

Are you serious..nobody knows this?? Is 11:1 to much?

[hornetgod13]

85.5mm would be a 402cc

11:1 with that sized piston will be fine with stock cylinder studs.

I used stock valves on my 416cc 11:1.

[drew416ex]

Originally posted by hornetgod13
85.5mm would be a 402cc

11:1 with that sized piston with be fine with stock cylinder studs.

I used stock valves on my 416cc 11:1.

X2. You wont need head studs for that compression. But if you are wanting a good aftermarket valve, I like kibblewhite.

[97WarriorRider]

what bore size would make it a 406?

[REDRIDDER]

Originally posted by 97WarriorRider
what bore size would make it a 406? .040 86mm = 407