Availability
Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP412515
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Forged Pro pistons for Olds 455, 4.155 bore, 1.750 C.H., 4.250 in. stroke, 6.735 in. rod, 17cc dish, 10.25@58cc, 9.9@60cc, 9.5@64cc, 9.2@88cc.
Part Number: SUM-BBO455030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.280 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP428016
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set
Part Number: SUM-GP415543
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Forged Pro pistons for Pontiac 400, 4.150 bore, 1.715 C.H., 3.75 in. stroke, 6.625 in. rod, 6cc flat top, 11.3@64cc, 10.3@72cc, 9.6@80cc, 9:1@87cc.
Part Number: SUM-BBP400030
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Piston Rings, Pro GPX Gas Ported, 4.005 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP400512
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.060 in. Bore, Ford, Set of 8
Part Number: SUM-17303C-60
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.040 in. Bore, Ford, Set of 8
Part Number: SUM-17303C-40
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP400015
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.060 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP406015
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Forged Aluminum, Flat, 3.780 in. Bore, 1.115 in. Compression Height, 0.927 in. Pin, Chevy, LS, Set of 8
Part Number: SUM-17402C
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.075 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP407512
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Forged Pro pistons for SB Chevy 350 Long Rod, 4.030 bore, 1.260 C.H., 3.48 in. stroke, 6 in. rod, 5cc flat top 11:1@58cc, 10.2@64cc, 9.9@67cc, 9.4@72.
Part Number: SUM-SBC350030L
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.165 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP416516
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set
Part Number: SUM-GP404010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP400012
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Plasma-Moly, 4.165 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set
Part Number: SUM-134-CM553440
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.560 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP456016
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.350 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP435016
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set
Part Number: SUM-GP403043
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Each
Part Number: SUM-17351C-00-1
Estimated Ship Date: Dec 16, 2025 if ordered today
Estimated Ship Date: Dec 16, 2025 if ordered today
Piston Rings, Pro GPX Gas Ported, 4.610 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set
Part Number: SUM-GP461043
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS 2618 Forged Piston, 3.903 bore, 1.110 C.H., 16cc dish, 4.000in. Stroke, 6.125 Full-float Rod, NA/Boost/Nitrous, Coated, 5.7L LS1 LS6, Set of 8
Part Number: SUM-110927390316
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP404064
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Rings, Pro GPX Gas Ported, 4.600 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP4600446
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
