Stroke with only Pistons and Crank?

ch1ll said

I’m not understanding the op’s question, is he using a stroker crank or not? You need to use a stroker crank to change stroke. Increased stroke piston has to have a shorter wrist pin height or a shorter rod length and to destroke the opposite. Changing pistons and rods only will not change the stroke.

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The OP wants to stroke his engine and use the OE connecting rods. It’s cost ineffective to do that. By the time he buys a decent bolt, gets new bushings (the bushings should almost always be replaced) and rebuilds the rods he could have a set of aftermarket rods that have 7/16 cap screws rather than 3/8 bolts and nuts, plus a better grade of steel and a better design. It makes no sense to use OE rods any more.