gtxrt
Well-Known Member
1967 440 350 hp, piston pin height, 1.99 or 2.00 any one know which one . thanks
If it is the same piston as the 375 hp, it’s 2.00.
I have the original untouched (at least to my knowledge) A12 motor out for freshening. There is a 511 in it for now. I will document everything I find when I pull it apart. (Real compression ratio, head gasket, chamber size etc.)The 1967 375 hp piston is 2.00, actually 2.004. This is not a guess or an estimate, it’s a measurement of an original piston that was sitting on my workbench. They sat 0.080 to 0.085 below the deck.
PRH is correct on the 68-69 piston. My Speed Pro NHRA approved forged piston measures 2.03 and some change.
i have an extra .010 in the hole so pin height is 1.99 or block is an extra .010 longerThe 1967 375 hp piston is 2.00, actually 2.004. This is not a guess or an estimate, it’s a measurement of an original piston that was sitting on my workbench. They sat 0.080 to 0.085 below the deck.
PRH is correct on the 68-69 piston. My Speed Pro NHRA approved forged piston measures 2.03 and some change.
i have an extra .010 in the hole so pin height is 1.99 or block is an extra .010 longer
I have the original untouched (at least to my knowledge) A12 motor out for freshening. There is a 511 in it for now. I will document everything I find when I pull it apart. (Real compression ratio, head gasket, chamber size etc.)
i have an extra .010 in the hole so pin height is 1.99 or block is an extra .010 longer