The slugs for a 351C head on a 289/302/331/347 are not your every day off the shelf part (think Boss302 stroker)... EXCEPT at DSS RACING in St Charles Illinois...

As far as I know they are the only folks with a forging press that makes their own slugs, I was there and saw the press in action... 100% american made...

1.5mm, 1.5mm, 3mm ring stack with two .75mm support rails for the oil ring since the pin is well into the oil ring groove... Oil ring groove is 4.5mm wide...

Time to take off the sharp spots to eliminate any potential hot spots and ward off detonation...

5.4" long rods, 3.4" stroke...

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