Use a table ban saw to hack off the 340 piston crown .

Jessearent said

Your to smart 340six..be quiet....unless you have some specifics about scats 4" forged crank . How much does the machinist remove and where, if useing 715 gram rods and bolts and stock TRW Forged flat top pistons weighing??? How deep and wide are the holes....or, hell I would just be satisfied if someone could give me the accurate grams of one of those pistons/is .030" over with rings.

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1st off it's you're not your.
See proof i am smart.
And i have them in here stock steel crank. Yes the forged TRW high compression one's that are above deck. And with closed chamber heads. I had a real machine shop mill them. And shoot peen, resize the rods with ARP bolts, rebush small ends. Balance Crank. The closed chamber heads,are 52.5cc.
The way YOU are doing it is a hack. Do it once do it right.