GAS PROVEN RINGS - 4" BORE
- This product is discontinued.
- This item ships directly from the manufacturer. It may take an additional business days for Speedway Motors to ship this item.
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
- This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
- This item UP84576 is made to order. It will be shipped from our warehouse when it is produced.
These are garage sale priced because they were installed and returned.
Speedway Gas Proven piston rings are the best value in piston rings! These tough rings will withstand 12.5 maximum compression, 7000 maximum sustained RPM, and up to 450 HP. First and second rings are cast iron yielding 55,000 psi strength with end gap factory set at .012" to .018". Three piece oil ring features chrome rails over a stainless steel expander, which gives uniform wall pressure and efficient oil control.
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