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Originally Posted by parkay2468
Got a shortblock with a car I bought.Was told it was legal.Car was a J auto.Trying to sell it and when I gave him the piston part number it is not legal for J he said.Piston number is P4876978.Anyone know if it is legal for any Superstock class in a Duster.Thanks
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You can run any piston , flat top with 2 valve relief or if its dished mush have the correct volume for that piston. go to engine blueprints for car and engine.