mannyman84

iTrader: (2)

I was going to buy a complete forged stroker kit for 2k plus 150 balanced. But I think I will buy everything separately since its easier for me to come up with a smaller amount of money than a big chunk. Yes I know save it but I'm the type that if I know I have money i just spend it.

So 4 inch stroke crank
6.125 rods with apr bolts
And what size pistons?

JakeFusion

iTrader: (7)

4.03" bore pistons designed for 4" stroke and 6.125" rods...

mannyman84

iTrader: (2)

Ok sounds fair lol. I'm just asking what's usually the size that is used for that set up? How much smaller do you need to go? What's addicuate?

redtan

iTrader: (5)

4.03" bore pistons designed for 4" stroke and 6.125" rods...

mannyman84

iTrader: (2)

Cool thanks guys. I'm a rookie at this. (Obviously)

bldgengineer

iTrader: (1)

a good machinist will match the size of the bore to your pistons and label which one goes where. Not every piston sized for 4.03" will be 4.03". They will be out by thousandths of an inch. Buy the pistons, and then do the final hone to each piston size.

67SS509

iTrader: (25)

If you bought a set of forged pistons off the shelf for a 4.030 bore they would typically be .003 to .005 smaller than the 4.030 bore. If you bought a set of cast pistons they would be .0005 to .002 smaller than the 4.030 bore. But this all depends on the brand and the intended application.