75cc heads with 260-270cc intake runners
Valve sizes are 2.09" intake and 1 65" exhaust.
fresh from the machine shop
fresh valve job
replaced guides as needed
3/8 rocker studs
double crane springs good to .600
retainers and 7 deg locks
also took a skim coat of the face for nice deck
all assembled and ready to go
They will give about 10.5 to 1 on pre '72 blocks. This assuming factory type pistons
i ended up buying a set of ported and polished heads so i dont need these
steal them from me for $400 obo
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