Piston Class is in !!

rumblefish360 said
Use a flat top piston. A Hyper slug like the KB-107 for a stock stroke 360 is a good example to use for a Hyper slug. You can also find forged slugs that are dimensionally the same. With a .038 head gasket, your compression ratio will be close to 11-1 with the RPM head.
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Thank you - I bought um cheap with new rings so may never use them but if it was possible to run them im my 340 I might do it , I know they are old school and heavy but I still love them and they are good conversation pieces.