$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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Engine Blocks & Parts

Individual Parts

Results 326 - 350 of 2000 +

Engine Block, Aluminum, 6-Bolt Mains, 4.125 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, LS, Each

Part Number: EDL-54903U

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Main Bolts, Extreme Duty, 4-bolt Style, 6-point, Premium Quality, 190,000 psi Yield Strength, Washers, Chevy, Small Block, Kit

Part Number: SUM-910203-PRO

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Engine Finishing Hardware, Head Dowels, Camshaft Bolts, Crank Key, Oil Pump Dowel, Chevy, Big Block, Kit

Part Number: CCA-234

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GM DOWEL PINS

Part Number: ATI-958001

3.67 out of 5 stars ( 3 )

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Cylinder Sleeve, Cast Iron, 3.188 in. Bore I.D., 0.094 in. Wall Thickness, 6.500 in. Length, Each

Part Number: MEL-CSL105

5.0 out of 5 stars ( 1 )

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Oil Diverter Barbell, Aluminum, Chevy, LS, Each

Part Number: PGP-PRP-4575

2.75 out of 5 stars ( 4 )

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Rear Main Seal Adapter - Big Block Chevy

Part Number: STF-7036

5.0 out of 5 stars ( 1 )

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Cylinder Head Dowel Pins, International, Set of 8

Part Number: PIO-PX-238-8

5.0 out of 5 stars ( 2 )

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Main Bolts, High Performance Series, 2-Bolt Main, Oldsmobile, 455, Kit

Part Number: ARP-185-5001

5.0 out of 5 stars ( 1 )

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Bellhousing Dowel Pin, 0.500 in. Diameter, 1.000 in. Length, Ford, Each

Part Number: DRT-32901400

4.0 out of 5 stars ( 4 )

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Main Studs, 2-Bolt Main, for use with Windage Tray, Front Sump, Ford, 351W, Kit

Part Number: ARP-154-5503

4.5 out of 5 stars ( 4 )

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Main Studs, 2-Bolt, Mazda, 1.6, 1.8L, Kit

Part Number: ARP-218-5401

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Main Studs, 4-Bolt Main, Ford, 5.0L, Dart SHP Block, Kit

Part Number: ARP-154-5612

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal

Part Number: SUM-150204

Not Yet Reviewed

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Expansion Plugs, Steel, 0.875 in. Diameter, Set of 10

Part Number: RNB-555-014

5.0 out of 5 stars ( 1 )

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LS Rear Main Seal Adapter Bolts LS1, LS3, LS2, LSX, Set of 12

Part Number: ICB-551435

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Main Studs, 2-bolt Main, Allen Head Nuts, Toyota, 1.8L, Kit

Part Number: ARP-203-5407

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Engine Expansion Plugs, Cadillac, Chevy, Small Block LS, Kit

Part Number: CCA-251

5.0 out of 5 stars ( 2 )

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Freeze Plugs, Steel, International, 5.0L, 5.6L, 6.4L, Kit

Part Number: MEL-MPE-122BR

5.0 out of 5 stars ( 1 )

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

Part Number: PQX-1745403

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

Engine Block, Cast Iron, 2-Bolt Mains, 3.927 in. Bore, Clearanced, 1-Piece Rear Seal, Dodge, RAM, Hemi, Gen III, Each

Part Number: SUM-150160

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Main Cap Studs, 8740 Chromoly, Black Oxide, Suzuki, Kit

Part Number: ARP-271-5401

Not Yet Reviewed

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Engine Valley Cover, Finned, Billet Aluminum, Black, Hardware Included, Chevy, Each

Part Number: TSN-81045BK

Not Yet Reviewed

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Mockup Block, Chevrolet Big Block, Mark IV, 9.8 Long Block, Steel, Includes bolts, Each

Part Number: SUM-774008

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Main Bolts, High Performance Series, 2-bolt Style, Hex Head, Washers, Jeep, 4.0L, Kit

Part Number: ARP-146-5001

4.0 out of 5 stars ( 1 )

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