Are the stock 400hp and 425hp pistons cast or forged and are they 11.1 ?
63impalass409 Well Known Member Supporting Member 2 May 21, 2019 #1 Are the stock 400hp and 425hp pistons cast or forged and are they 11.1 ?
64ss409 Well Known Member Supporting Member 9 May 22, 2019 #2 They were forged and 11:1. The 340 pistons were cast.
