383 STROKER KIT QUESTION

I sell kits, but no one I know of offers stroker pistons for this combination in a standard bore.

Honestly, your bore is probably not clean enough at standard for the rings to seal correctly in the first place. 50 plus years of use will require some attention.

I just sold a 489" / 383" kit to a guy in Germany a few months ago. That one utilizes a 4.25" stroke crankshaft.

The kits all cost the same from a 431" to 489"

Send me a PM if you need further assistance, and I'll be happy to help you out.

Tom