Availability
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.030 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045035
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.000 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045005
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Timing Chain and Gear Set, Adjustable, Billet Steel, Single Roller, 3-Bolt, 4X, Standard Spacing, LS, Kit
Part Number: SUM-G6647-4X
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Plasma Moly Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 3.780 in. Bore, 1.5mm, 1.5mm, 3.0mm, Set
Part Number: SUM-136SM8531005
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Valve Covers, Tall Height, Cast Aluminum, Black Crinkle, Plain, Chevy, LS, Pair
Part Number: SUM-440362
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Timing Chain and Gear Set, Adjustable, Billet Steel, Single Roller, 3-Bolt, 1X, Standard Spacing, LS, Kit
Part Number: SUM-G6645-1X
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.005 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045010
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.075 in. bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045075
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Plasma Moly Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 3.810 in. Bore, 1.5mm, 1.5mm, 3.0mm, Set
Part Number: SUM-136SM8531035
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Pro SBC Stage 3 Hyd. Flat-Tappet 4/7 Firing Order Swap Cam, 218/228 Dur., 109 LSA + 2 Adv, .465/.473 1.5 Ratio, .486/.505 1.6 Ratio, 1500-5800 Range
Part Number: SUM-1202
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.065 in. bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045065
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.070 in. bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045070
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Valve Cover Set, LS Race, Lightweight Die Cast Aluminum, Plain, Black Powdercoat, Pair
Part Number: SUM-440820
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Valve Covers, Stock Height, Cast Aluminum, Black Crinkle, Plain, Chevy, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0L, Pair
Part Number: SUM-440367
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP403015
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP403016
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Pro GPX Gas Ported, 3.800 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP380015
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Pro SBC Stage 4 Hyd. Flat-Tappet 4/7 Firing Order Swap Cam, 228/236 Dur., 108 LSA + 2 Adv, .473/.495 1.5 Ratio, .505/.528 1.6 Ratio, 2000-6200 Range
Part Number: SUM-1203
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Combo, Cloyes, Timing Chain and Gear Set, Timing Cover, Cam Button, Lock Plate, RTV, Chevy, Small Block, Kit
Part Number: CMB-08-0019
Cannot be shipped Internationally
Cannot be shipped Internationally
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.080 in. bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045080
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP412512
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Valve Covers, Stock Height, Cast Aluminum, Natural, Plain, Chevy, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0L, Pair
Part Number: SUM-440365
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.040 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045045
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP415516
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Valve Covers, Centerbolt Mounting, Cast Aluminum, Black Powdercoated, Chevy GM, LS/LSX, Gen III/IV, Pair
Part Number: SUM-440343B
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.