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Doug's Headers D321

Headers, Long Tube, Steel, Silver Ceramic Coated, Chevy, Pontiac, Pair

Part Number: DOU-D321

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

COMP Cams Xtreme Energy Cam and Lifter Kits CL11-771-8

COMP Cams Xtreme Energy Cam and Lifter Kits CL11-771-8

Cam and Lifters, Mechanical Roller Tappet, Advertised Duration 280/286, Lift .646/.653, Chevy, Big Block, Kit

Part Number: CCA-CL11-771-8

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Manley Titanium Valves 11954H-8

VALVE-TI 2.350,+.350 HT MATERIAL

Part Number: MAN-11954H-8

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

SSBC-USA Tri-Power HD Quick-Change Caliper Upgrade Kits A187-4R

Disc Brake Caliper, Tri-Power HD, Quick-Change, Aluminum, 3-Piston, Semi-Metallic Pads, Front, Red Powdercoated, GM, Hummer, Kit

Part Number: TSB-A187-4R

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

Scat Forged Standard Weight Crankshafts 4-454-4000-6385-C

Crankshaft, Standard Weight, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445415C

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Scat Forged Standard Weight Crankshafts 4-454-4750-6700

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, 6.700 Rod, Chevy, 454, Each

Part Number: SCA-445440

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

PowerStop Z23 Evolution Sport Brake Upgrade Kits with Calipers KC2023A

Disc Brake Kits, Z23 Evolution Sport Brake Upgrade Kits, Front and Rear, Cross-drilled/Slotted Rotors, 2-piston Red Calipers, Chevy, GMC, Hummer, Kit

Part Number: PWR-KC2023A

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

COMP Cams Xtreme Energy Retrofit Cam and Lifter Kits CL11-422-8

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 270/276, Lift .510/.510, Chevy, Big Block, Kit

Part Number: CCA-CL11-422-8

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

COMP Cams Xtreme Energy Retrofit Camshafts 11-422-8

5 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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JE Pistons Open Chamber Dome Top Gas Ported Pistons 243333

Pistons, Forged, Dome, 2-Valve Reliefs, 4.625 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Set of 8

Part Number: JEP-243333-8

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

JE Pistons Nitrous Series Gas Ported Pistons 258199

Pistons, Forged, Dome, 2-Valve Reliefs, 4.600 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-258199-8

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

ICON Premium Forged Piston and Ring Kits IC988KTD.030

Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.280 in. Bore, 3.760 in. Stroke, Dome, Chevy, Big Block, Set of 8

Part Number: UEM-IC988KTD-030

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Mahle PowerPak Piston Kits 930239410

Pistons, Powerpack, Elite Sportsman Drag Series, Dome, Forged Aluminum, 4.610 in. Bore, 4.375 in. Stroke, Chevy, Set of 8

Part Number: MLE-930239410

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

JE Pistons Big Block Flat Top Pistons 257967

Pistons, Forged, Flat Top, Single Valve Relief, 4.560 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-257967-8

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

JE Pistons Big Block Open Chamber Dome Top Pistons 258218

Pistons, Forged, Dome, 2-Valve Reliefs, 4.530 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Set of 8

Part Number: JEP-258218-8

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

ICON Premium Forged Piston and Ring Kits IC512KTS.STD

Piston and Ring Kits, Premium, Forged Aluminum, 4.500 in. Bore, 4.250 in. Stroke, Dome, Chevy, Big Block, Set of 8

Part Number: UEM-IC512KTSSTD

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Sets YG GM11.5-456 AAM/Chrysler/GM 11.5 in. 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, 2.005 in. Pinion, 30 Spline, 11.500 in. Ring Gear, GM/Chrysler, Set

Part Number: YGA-24443

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

JE Pistons Big Block Inverted Dome Top Pistons 257948

Pistons, Forged, Dish, Single Valve Relief, 4.530 in. Bore, 4.000 in. Stroke, 6.385 in. Rod, 1.395 in. Compression, Chevy, Set of 8

Part Number: JEP-257948-8

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

JE Pistons Big Block Inverted Dome Top Pistons 257948S

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Edelbrock Super Victor EFI Intake Manifolds 292751

Intake Manifold, Super Victor EFI, Multi-Port, Aluminum, Polished, Rectangular Port, Chevy, Big Block, Each

Part Number: EDL-292751

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 2026 if ordered today

South Bend Clutch Stage 1 Heavy-Duty Clutch Kits K04237-HD

Clutch Kit, Stage 1 Heavy-Duty, Single, 1.375 in. - 10-spline, Organic Disc, Pressure Plate, Chevy, GMC, 8.1L, Kit

Part Number: SBB-K04237-HD

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

South Bend Clutch Stage 2 Daily Driver Clutch Kits K04204-HD-TZ

Clutch Kit, Stage 2 Daily Driver, Single, 1.378 in. - 10-spline, Kevlar® Disc, Pressure Plate, Chevy, GMC, 8.1L, Kit

Part Number: SBB-K04204-HD-TZ

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

March Performance Sport Track Chevy Serpentine Pulley Kits 23695-09

Pulleys, Sport Track, Serpentine, Standard Ratio, Billet Aluminum, Silver Powdercoated, Chevy, Big Block, Kit

Part Number: MCH-23695-09

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

JE Pistons Big Block Flat Top Pistons 257968

Pistons, Forged, Flat Top, Single Valve Relief, 4.600 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-257968-8

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

JE Pistons Big Block Open Chamber Dome Top Pistons 258275

Pistons, Forged, Dome, 2-Valve Reliefs, 4.500 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Set of 8

Part Number: JEP-258275-8

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

JE Pistons Big Block Flat Top Pistons 338237

Pistons, Forged, Flat Top, Single Valve Relief, 4.530 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Set of 8

Part Number: JEP-338237-8

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters 4451471

Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Right Position, Chevrolet, GMC, 7.4L, Each

Part Number: MPE-4451471

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

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