Standard Gap “Drop-In” Plasma Moly Piston Ring Sets By Application Speed-Pro’s standard gap “drop-in” Plasma Moly piston ring sets may be installed right out-of-the-box. Sets include Plasma Moly- faced, ductile iron top rings, taper face iron second rings and standard tension, stainless steel SS-50 oil rings. Please specify size/over- size (Std., .020", .030", .040", .060") when ordering. Engine Std. Bore Top Ring 2nd. Ring Oil Ring Sizes Available Part No. Chevy 302, 327, 350 4.000" 5/64" 5/64" 3/16" Std., .030", .060" SEAR9903 1/16" 1/16" 3/16" Std., .020", .030", .040", .060" SEAR9902 1/16" 1/16" 1/8" Std., .030", .060" SEAR9968 400 4.125" 5/64" 5/64" 3/16" .030", .060" SEAR10374 1/16" 1/16" 3/16" Std., .030", .040" SEAR10375 402 4.125" 5/64" 5/64" 3/16" .030", .060" SEAR10374 1/16" 1/16" 3/16" Std., .030", .040" SEAR10375 427, 454 4.250" 5/64" 5/64" 3/16" Std., .030", .060" SEAR9905 1/16" 1/16" 3/16" Std., .030", .060" SEAR9904 Chrysler 360 4.000" 5/64" 5/64" 3/16" Std., .030", .060" SEAR9903 1/16" 1/16" 3/16" Std., .020", .030", .040", .060" SEAR9902 383 4.250" 5/64" 5/64" 3/16" Std., .030", .060" SEAR9905 1/16" 1/16" 3/16" Std., .030", .060" SEAR9904 Ford 289, 302, 351W, 351C, 351M, 400 4.000" 5/64" 5/64" 3/16" Std., .030", .060" SEAR9903 1/16" 1/16" 1/8" Std., .030", .060" SEAR9968 1/16" 1/16" 3/16" Std., .020", .030", .040", .060" SEAR9902 302 (’86-94 Only) 4.000" 1.5mm 1.5mm 4.0mm Std., .030" SEAR10471 File-Fit Plasma Moly Piston Ring Sets By Bore Size Speed-Pro offers a large selection of file-fit Plasma Moly piston ring sets by bore size. Sets include plasma moly-faced ductile iron top rings, taper-face iron second rings and stainless steel SS-50 oil rings in standard or low tension. Please specify oversize (.005", .035", .045", .065") when ordering. Bore Dia. Ring Set No. Sizes Available No. Cylinders Top Ring 2nd. Ring Oil Ring Oil Ring Tension 3.875" SEAR9621 .035" 8 1/16" 1/16" 3/16" Std. 4.000" SEAR9343 .005", .025", .035", .045", .065" 8 5/64" 5/64" 3/16" Std. 4.000" SEAR9771 .005", .025", .035", .045", .065" 8 1/16" 1/16" 3/16" Std. 4.000" SEAR9401* .005", .025", .035", .045", .065" 8 1/16" 1/16" 3/16" Low 4.000" SEAR9786* .065" 8 .043" 1/16" 3/16" Low 4.000" SEAR20100 † .035" 8 .043" .043" 3mm Light 4.000" SEAR20107 † .035", .045" 8 1/16" 1/16" 3mm Light 4.000" SEAR10472 .035", .045" 8 1.5mm 1.5mm 4mm Std. 4.125" SEAR5879 .005", .035", .065" 8 5/64" 5/64" 3/16" Std. 4.125" SEAR10248 .005", .025", .035", .045", .065" 8 1/16" 1/16" 3/16" Std. 4.125" SEAR10202 .035", .045" 8 1/16" 1/16" 1/8" Std. 4.125" SEAR20109 † .005", .035" 8 .043" .043" 3mm Light 4.125" SEAR9346* .005", .025", .035", .045", .065" 8 1/16" 1/16" 3/16" Low 4.130" SEAR9280* .005" 8 1/16" 1/16" 3/16" Low 4.165" SEAR9349* .005", .035" 8 1/16" 1/16" 3/16" Low 4.250" SEAR9590 .005", .035", .065" 8 5/64" 5/64" 3/16" Std. 4.250" SEAR9745 .035", .065" 8 1/16" 1/16" 3/16" Std. 4.250" SEAR9344* .005", .035", .065" 8 1/16" 1/16" 3/16" Low 4.250" SEAR9788* 065" 8 .043" 1/16" 3/16" Low 4.250" SEAR10177* .065" 8 .031" 1/16" 3/16" Low 4.320" SEAR9224 .035", .065" 8 5/64" 5/64" 3/16" Std. 4.320" SEAR9798 .005", .035", .065" 8 1/16" 1/16" 3/16" Std. 4.320" SEAR9278* .005", .035", .065" 8 1/16" 1/16" 3/16" Low 4.360" SEAR10246 .005" 8 5/64" 5/64" 3/16" Std. 4.360" SEAR10601 .005", .035" 8 1/16" 1/16" 3/16" Std. 4.360" SEAR9374* .005", .035" 8 1/16" 1/16" 3/16" Low 4.375" SEAR9799 .005" 8 1/16" 1/16" 3/16" Std. 4.375" SEAR9406* .005" 8 1/16" 1/16" 3/16" Low 4.440" SEAR10133 .005", .035" 8 1/16" 1/16" 3/16" Std. 4.440" SEAR9332* .005" 8 1/16" 1/16" 3/16" Low 4.466" SEAR10575 .005" 8 2.0mm 1.5mm 4.0mm Std. 4.500" SEAR10451 .005", .035" 8 1/16" 1/16" 3/16" Std. 4.500" SEAR10317* .005", .035" 8 1/16" 1/16" 3/16" Low 4.500" SEAR10452 .005" 8 .043" 1/16" 3/16" Std. 4.500" SEAR10316* .005", .035" 8 .043" 1/16" 3/16" Low 4.563" SEAR10441 .005" 8 1/16" 1/16" 3/16" Std. 4.563" SEAR10318* .045" 8 .043" 1/16" 3/16" Low 4.563" SEAR10319* .005" 8 1/16" 1/16" 3/16" Low 4.600" SEAR20104* .005" 8 .043" .043" 3mm Low 4.625" SEAR10433 .005" 8 1/16" 1/16" 3/16" Std. * Includes low tension oil ring package for drag racing only. † Includes light tension oil ring package for drag racing engines with crankcase evacuation systems.
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