CHEVROLET 7.4L/454 Engine Blocks & Accessories Engines & Components

PRW Billet Steel Main Caps 1745402

Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Big Block, Set of 3

Part Number: PQX-1745402

Not Yet Reviewed

Estimated Ship Date: Jun 17, 2026 if ordered today

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Estimated Ship Date: Jun 17, 2026 if ordered today

Melling Performance Cylinder Sleeves 592256

Cylinder Sleeve, Cast Iron, 4.095 in. Bore I.D., 0.125 in. Wall Thickness, 7.500 in. Length, Each

Part Number: MEL-592256

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Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

Melling Performance Cylinder Sleeves CSL197HP

Cylinder Sleeve, Cast Iron, 4.250 in. Bore I.D., 0.094 in. Wall Thickness, 7.000 in. Length, Each

Part Number: MEL-CSL197HP

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Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

Philadelphia Racing Products AN Block Adapters PRP-6862

Philadelphia Racing Products AN Block Adapters PRP-6862

AN Block Adapters, -12 AN Adapters, Black Anodized, Chevy, Big Block, Kit

Part Number: PGP-PRP-6862

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

ACDelco GM Genuine Parts Main Bearing Cap Bolts 12561388

Main Cap Fasteners, ACDelco GM Genuine Parts Multi-Purpose Bolts, 7/16-14 Threads, Cadillac, Chevy, GMC, Olds, Pontiac, Each

Part Number: ADO-12561388

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PRW Main Cap Stud Kits 1045442

Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, 4-Bolt Main, Chevy, Big Block, Kit

Part Number: PQX-1045442

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

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ARP High Performance Series Main Bolts 135-5201

4.25 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Melling Engine Expansion Plug Kits MPE-275R

Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-275R

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Milodon Main Caps 11200

Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Chevy, Big Block, Set

Part Number: MIL-11200

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jul 14, 2026 if ordered today

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Estimated Ship Date: Jul 14, 2026 if ordered today

Dorman Expansion Plugs 550-034

Engine Expansion Plugs, Steel, 3.00 in. Diameter, Chevy, GMC, Set of 10

Part Number: RNB-550-034

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Chevrolet Performance Engine Expansion Plugs 11609914

Engine Expansion Plugs

Part Number: NAL-11609914

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Engine Works Bellhousing Dowel Pins 453658

Bellhousing Dowel Pins, 1.190 in. Length, 0.620 in. Diameter, SBC, BBC, Buick, Chevy, Oldsmobile, Pontiac, GMC, Pair

Part Number: EW1-453658

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Engine Works Cylinder Head Dowel Pins 12233-20

Cylinder Head Dowel Pins, Chevrolet, Big Block, Set of 20

Part Number: EW1-12233-20

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Milodon Main Stud Kits 81135

Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit

Part Number: MIL-81135

Not Yet Reviewed

Estimated Ship Date: Jul 14, 2026 if ordered today

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Estimated Ship Date: Jul 14, 2026 if ordered today

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ARP High Performance Series Main Bolts 135-5201

4.25 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Melling Cylinder Sleeves 590297

Cylinder Sleeve, Cast Iron, 4.250 in. Bore I.D., 7.000 in. Length, Each

Part Number: MEL-590297

Not Yet Reviewed

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PRW Main Cap Stud Kits 1045422

Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, 2-Bolt Main, Chevy, Big Block, Kit

Part Number: PQX-1045422

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

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ARP High Performance Series Main Bolts 135-5002

5 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Philadelphia Racing Products AN Block Adapters PRP-6861

AN Block Adapters, -16 AN Adapters, Clear Anodized, Chevy, Big Block, Kit

Part Number: PGP-PRP-6861

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Philadelphia Racing Products AN Block Adapters PRP-6863

AN Block Adapters, -16 AN Adapters, Black Anodized, Chevy, Big Block, Kit

Part Number: PGP-PRP-6863

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Engine Works Cylinder Head Dowel Pins 12233

Cylinder Head Dowel Pins, Chevrolet, Big Block, Set of 4

Part Number: EW1-12233

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Estimated Ship Date: Today

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Milodon Main Stud Kits 81137

Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit

Part Number: MIL-81137

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Chevrolet Performance Engines, Bare Blocks 19417353

Bare Block

Part Number: NAL-19417353

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Pioneer Performance Freeze Plugs 830002

Freeze Plug Kit, Brass, Chevy, Big Block, Kit

Part Number: PIO-830002

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK3B

Engine Expansion Plug Kit 65-90 BUI/CHV/GM/GMC/OLD/PON 4.3L/4.4L/4.6L/4.9L/5.0L/5.7L/6.0L/6.5L/6.6L/7.0L/7.4L/L

Part Number: EGN-PK3B

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Milodon Main Stud Kits 81139

Main Studs, 2-Bolt Main, Chevy, Big Block, with Windage Tray, Kit

Part Number: MIL-81139

Not Yet Reviewed

Estimated Ship Date: Jul 14, 2026 if ordered today

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Estimated Ship Date: Jul 14, 2026 if ordered today

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ARP Main Stud Kits 235-5502

5 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Milodon Main Bolt Kits 81140

Main Cap Fasteners, Milodon Straight Bolt Caps, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Chevrolet, Big Block, Kit

Part Number: MIL-81140

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Estimated Ship Date: Jul 14, 2026 if ordered today

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Estimated Ship Date: Jul 14, 2026 if ordered today

Melling Cylinder Sleeves 590203

Cylinder Sleeve, Cast Iron, 3.938 in. Bore I.D., 0.125 in. Wall Thickness, 6.750 in. Length, Each

Part Number: MEL-590203

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today