Summit Racing Engines & Components

Piston Rings, Pro GPX Gas Ported, 3.630 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, Single Piston Set,

Part Number: SUM-GP363010

Not Yet Reviewed

Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 3.640 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, Single Piston Set,

Part Number: SUM-GP364010

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 3.640 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, Single piston Set

Part Number: SUM-GP364012

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Piston Rings, Pro GPX Gas Ported, 3.766 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, Single Piston Set,

Part Number: SUM-GP376610

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Piston Rings, Pro GPX Gas Ported, 3.937 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, Tabbed Oil Ring, Single Piston Set, L4, Set

Part Number: SUM-GP393710

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 76.5mm/3.012 in. Bore, Forged Pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7650XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 77mm/3.031 in. Bore, Forged Piston, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7700XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 77.5/3.051 in. Bore Forged Pistons, File Fit, Gas Nitride, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7750XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 78mm/3.071 in. Bore Forged Piston, File Fit, Gas Nitride, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7800XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 78.5mm 3.091 in. Bore Forged Piston, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7850XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 79mm 3.110 in. Bore Aftermarket Piston, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7900XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 79.5mm 3.130 in. Bore Forged Pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7950XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 80mm 3.150 in. Bore Forged Pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP8000XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 73.5mm/2.894 in. Bore, Forged Sport Compact, File Fit, Gas Nitride, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7350XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Piston Rings, Pro GPX Gas Ported, 75mm/2.953 in. Bore, Honda D Series, File Fit, Gas Nitride, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7500XX

Not Yet Reviewed

Estimated Ship Date: Dec 30, 2025 if ordered today

• Special Order

Timing Chain and Gear Set, OE Replacement, GM, Set

Part Number: SUM-TS76103

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

• Special Order

Timing Chain and Gear Set, OE Replacement, Toyota, Set

Part Number: SUM-TS76027

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Estimated Ship Date: Dec 18, 2025 if ordered today

• Special Order

Rocker Arm, Stud Mount, Full Roller, Aluminum, 1.6 Ratio, Fits 7/16 in. Stud, Chevy, Small Block, Each

Part Number: SUM-G6921B-1

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Estimated Ship Date: Jan 20, 2026 if ordered today

• Special Order

Rocker Arm, Stud Mount, Full Roller, Aluminum, 1.6 Ratio, Fits 7/16 in. Stud, Ford, Small Block, Each

Part Number: SUM-G6941B-1

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Estimated Ship Date: Jan 20, 2026 if ordered today

• Special Order

Rocker Arm, Stud Mount, Full Roller, Aluminum, 1.72 Ratio, Fits 3/8 in. Stud, Ford Small Block, Each

Part Number: SUM-G6942B-1

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 20, 2026 if ordered today

• Special Order

Rocker Arm, Trunnion Upgrade, Assembled, Cast Steel, 1.7 Ratio, Straight Body, Cathedral Port, Chevy, LS1, LS2, LS6, LQ4, LQ9, Each

Part Number: SUM-141556-1

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Estimated Ship Date: Jan 20, 2026 if ordered today

• Special Order

Connecting Rod Bolts, Pro Studs, 8740 Chromoly Steel, Chevy, Big Block, V8, Set of 8

Part Number: SES-3-90-11-004

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Estimated Ship Date: Jan 19, 2026 if ordered today

• Special Order

BBC 1.645 Triple Springs, Endurance S.R., .950 Max Lift @ 350 Lb. seat @ 2.150 Installed, 1004 Lb. @ 1.200 Open, 1.130 C.B., 688 Rate, 183g PAC 1358

Part Number: SUM-174046TP-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

SBC 1.550 Dual Springs, Drag Solid Roller .800 Max Lift @ 275 Lb. seat@ 2.000 Installed, 805 Lb. @ 1.200 Open, 1.150 C.B., 663 Rate, Like PAC 1226

Part Number: SUM-174032D-1

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Estimated Ship Date: Jan 23, 2026 if ordered today

SBC or BBC 1.500 Dual Springs, Advanced S.R.1.000 Max lift @ 420 Lb. seat @ 2.175 Installed, 1200 Lb. @ 1.175 Open, 1.130 C.B., 780 Rate,144g PAC 1355

Part Number: SUM-174041DP-1

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today