Engines & Engine Parts

Valve Covers, Tall, Steel, Black Wrinkle, Red Chevrolet Logo, Chevy, Big Block, Pair

Part Number: PRO-141-811

4.5 out of 5 stars ( 12 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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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 4/13/2026 if shipped by air

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Cylinder Head Studs, Pro Series, Hex Head, Chevy, 302, 327, 350, 400, Aftermarket Heads, Kit

Part Number: ARP-234-4109

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Combo, Proform, Rocker Arms, Roller, 1.5 Ratio, Valve Lash Adjustment Tool, Chevy, Small Block, Kit

Part Number: CMB-09-0015

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Connecting Rods, 4340, H-Beam, 12-Point, Cap Screw, 6.760 in. Length, Mopar V8, 440, 7.2L, Set of 8

Part Number: SCA-6676010

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Valve Cover Wing Nuts, Black Crinkle, Bowtie Emblem On Top, 1/4 in.-20, 4.25 in. Long, Set of 4

Part Number: PRO-141-756

4.5 out of 5 stars ( 10 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Rocker Arms, Pro Series, Stud Mount, Full Roller, Stainless Steel, Natural, 1.7 Ratio, Fits 3/8 in. Stud, Ford, Small Block Windsor, Set of 16

Part Number: PQX-0230204

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 3.898 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9035STD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Pro LS Rotating Assembly, 325 Cid., 3.780 bore, Standard 3.622 stroke, 58x, 6.125 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R5836L7807

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Pro LS 2618 Forged Piston, 4.080 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-1109274080-6

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Cylinder Head Fasteners, Head Bolts, Steel, Black, Cadillac, Chevrolet, GMC, Set of 11

Part Number: FEL-ES73121

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Valve Cover, Cast Aluminum, Black Wrinkle, Recessed Chevrolet Logo, Chevy, Small Block, Pair

Part Number: PRO-141-845

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Cylinder Head Studs, Hex Head, Chrysler, Small Block, Kit

Part Number: ARP-144-4001

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Camshaft Kit, Pro LS Vortec Truck Swap, Hydraulic Roller Tappet, 210/218 Dur.@ .050 112 LSA +1 Adv. Lift .500/.500, Chevy GM, LS/LSX, Gen III/IV, Each

Part Number: SUM-8712-1

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Valve Cover Breather, Push-in, Round, Steel, Black Wrinkle, Mopar Emblem, 3 in. Diameter, Each

Part Number: PRO-440-754

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Valve Cover Hold-Down Tabs, Steel, Chrome Plated, Bowtie Emblem, Chevy, Small Block V8, Set of 4

Part Number: PRO-141-903

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Valve Cover Studs, with Mini Hex Nuts, Bowtie Emblem, Steel, Black Crinkle, 1/4 in.-20, 1.5 in. Length

Part Number: PRO-141-759

4.91 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Piston, Pro Tru Street Series, 4.310 in. Bore, Forged Aluminum, Includes Wrist Pins and Ring Set, Chevrolet, 454, Set of 8

Part Number: WIS-PTS522A6

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Pistons, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Set of 8

Part Number: SLP-H345DCP30

4.75 out of 5 stars ( 28 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Cylinder Head Studs, Pro Series, 12-Point Heads, Ford, 7.3L Diesel, Kit

Part Number: ARP-250-4204

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Cylinder Head Fastener, Pro Series, 12-Point, Black Oxide, Chevy, Small Block, Kit

Part Number: ARP-2343725

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Dipstick with Tube, Engine, Steel, Chrome, Chevy, Big Block Mark IV, Each

Part Number: PRO-66117

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Cylinder Head Studs, Pro Series, Custom Age 625+ Alloy, 12-Point Nuts, Ford, V8, Modular, Kit

Part Number: ARP-256-4305

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Cylinder Head Studs, Pro Series, 12-Point Head, for use on Acura®, 1.8L, B18A1, 11mm, Kit

Part Number: ARP-208-4302

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Connecting Rod Bolts, Pro Series, 2000 Alloy, General Rod Bolt Replacement, Set of 8

Part Number: ARP-200-6210

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air