Page 616 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

FILE-FIT PLASMA MOLY PISTON RING SETS BY APPLICATION
Sets have high strength ductile iron top rings with Plasma Moly facing for instant seating and superior sealing. Taper face iron second rings deliver excellent oil
control, and the stainless steel SS-50 oil ring package is among the industry’s best. Sets with low (15-18 lbs.) or light (5-10 lbs.) tension oil rings are for race-only
engines and reduce internal friction for increased horsepower and torque. Instructions for recommended file-fitting methods included. Please specify oversize
(.005", .025", .035", .045", .065") when ordering.
Standard Top 2nd Oil Sizes
Engine Bore Ring Ring Ring Available Part No.
Chevy
5/64" 5/64" 3/16" .005", .025", .035", .045", .065" SEAR9343
1/16" 1/16" 3/16" .005", .025", .035", .045", .065" SEAR9771
1/16" 1/16" 3/16" .005", .025", .035", .045", .065" SEAR9401*
302, 327, 350 4.000"
1/16" 1/16" 1/8" .005", .035", .045", .065" SEAR9342
.043" 1/16" 3/16" .065" SEAR9786*
.043" .043" 3.0mm .035", .065" SEAR20100 †
5/64" 5/64" 3/16" .005", .035", .065" SEAR5879
400 4.125" 1/16" 1/16" 3/16" .005", .025", .035", .045", .065" SEAR10248
1/16" 1/16" 3/16" .005", .025", .035", .045", .065" SEAR9346*
Ford
5/64" 5/64" 3/16" .005", .025", .035", .045", .065" SEAR9343
1/16" 1/16" 3/16" .005", .025", .035", .045", .065" SEAR9771
289, 302, 351W 4.000" 1/16" 1/16" 3/16" .005", .025", .035", .045", .065" SEAR9401*
351C, 351M, 400 1/16" 1/16" 1/8" .005", .025", .035", .045", .065" SEAR9342
.043" 1/16" 3/16" .035", .065" SEAR9786*
.043" .043" 3.0mm .035", .065" SEAR20100 †
* Includes low tension oil ring package (15-18 lbs.) for racing only.
† Includes light tension oil ring package (5-10 lbs.) for racing engines with crankcase evacuation system.

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 without the hassles of file-fitting. 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/oversize (Standard, .020",
.030", .040", .060") when ordering.
Standard Top 2nd Oil Sizes
Engine Bore Ring Ring Ring Available Part No.
Chevy
5/64" 5/64" 3/16" Standard, .030", .060" SEAR9903

302, 327, 350 4.000" 1/16" 1/16" 3/16" Standard, .020", .030", .040", .060" SEAR9902
1/16" 1/16" 1/8" Standard, .030", .060" SEAR9968
5/64" 5/64" 3/16" Standard, .030", .060" SEAR10374
400 4.125"
1/16" 1/16" 3/16" Standard, .030", .040" SEAR10375
Ford
5/64" 5/64" 3/16" Standard, .030", .060" SEAR9903
289, 302, 351W
351C, 351M, 400 4.000" 1/16" 1/16" 1/8" Standard, .030", .060" SEAR9968
1/16" 1/16" 3/16" Standard, .020", .030", .040", .060" SEAR9902
302 4.000" 1.5mm 1.5mm 4.0mm Standard, .030" SEAR10471
(1986-94 Only)
CLAIMER SERIES PISTON RING SETS
Race proven, and specifically engineered for oval track claimer engines, each standard fit set includes 1/16” standard or moly faced beveled top rings for high
RPM sealing, 1/16” taper face second rings, and SS-50 stainless steel, standard tension 3/16" oil control rings for maximum oil control. Please specify size/over-
size (Standard, .030”, .040”, .060”) when ordering.
Standard Top 2nd Oil Sizes
Engine Bore Ring Ring Ring Available Part No.
Chevy
1/16"
Standard 1/16" 3/16" Standard, .030", .040", .060" SEAR6902
302, 327, 350 4.000"
1/16" 1/16" 3/16" Standard, .030", .040", .060" SEAR8902
Moly
1/16" 1/16" 3/16" .030", .040" SEAR6375
Standard
400 4.125"
1/16" 1/16" 3/16" .030", .040" SEAR8375
Moly
Ford
1/16"
4.000" Standard 1/16" 3/16" Standard, .030", .040", .060" SEAR6902
289, 302, 351W 1/16"
4.000" 1/16" 3/16" Standard, .030", .040", .060" SEAR8902
Moly

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