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xr75 high compression forged 50 mm big bore kits

SKU: $190.00
High performance xr75 forged 50mm big bore piston kits 73-78 years works in both stroker and stock configuratins runs 10:5:1 compression. Made in U.S.A Alyways specify year upon ordering 73-76 4 speed or 77-78 5 speed