Engine Blocks & Accessories Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Extreme Duty Main Cap Bolts SUM-910203-PRO

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

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

ARP Main Stud Kits 134-5402

ARP Main Stud Kits 134-5402

Main Studs, 2-Bolt, Small Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5402

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Melling Cylinder Sleeves 592274

Cylinder Sleeve, Cast Iron, 4.110 in. Bore I.D., 0.125 in. Wall Thickness, 6.875 in. Length, Each

Part Number: MEL-592274

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

ARP Main Stud Kits 154-5404

Main Studs, 2-Bolt Main, Ford, 351C, Kit

Part Number: ARP-154-5404

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Lakewood Bellhousing Dowel Pins 15920LKW

Bellhousing Dowel Pins, .625 in. Diameter, .007 in. Offset, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: LAK-15920

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Howards Cams Extreme Billet Main Caps H350F

Main Cap, Billet Steel, Front, Straight Outer Bolts, 2-Bolt, Chevy, Small Block, Each

Part Number: HRS-H350F

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Mr. Gasket Freeze Plug Kits 6482

Freeze Plug Kit Brass Big Block Chevy

Part Number: MRG-6482

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Summit Racing™ Main Stud Kits SUM-910204

Main Studs, 4-bolt Style, 180,000 psi Yield Strength, Washers, Nuts, Chevy, Small Block, Kit

Part Number: SUM-910204

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Milodon Freeze Plug Kits 34046

Freeze Plug Kit, Brass, Pontiac, V8, Kit

Part Number: MIL-34046

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

ARP High Performance Series Main Bolts 154-5204

Main Bolts, High Performance Series, 4-Bolt Main, Ford, 351C, Kit

Part Number: ARP-154-5204

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

ARP High Performance Series Main Bolts 134-5204

Main Bolts, High Performance Series, 4-bolt Main, Hex, Designed To Fit Dart SHP Cast Iron Engine Blocks, Kit

Part Number: ARP-134-5204

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Summit Racing™ Main Stud Kits SUM-910205

Main Studs, 2-Bolt Main, 180,000 psi Yield Strength, Washers, Hex Nuts, Chevy, Small Block, Kit

Part Number: SUM-910205

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

ARP High Performance Series Main Bolts 154-5201

Main Bolts, High Performance Series, 4-Bolt Main, Ford, Small Block, 221-302, Kit

Part Number: ARP-154-5201

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Top Street Performance Finned Aluminum Engine Valley Covers 81045BK

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

Part Number: TSN-81045BK

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Philadelphia Racing Products AN Block Adapters PRP-6852

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

Part Number: PGP-PRP-6852

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Summit Racing™ LS Finned Aluminum Valley Covers SUM-240065-POL

Lifter Valley Cover, Finned, Aluminum, Polished, Chevy, LS, Each

Part Number: SUM-240065-POL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Summit Racing™ LS Finned Aluminum Valley Covers SUM-240065-SAT

Lifter Valley Cover, Finned, Aluminum, Natural, Chevy, LS, Each

Part Number: SUM-240065-SAT

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

ARP Main Stud Kits 184-5401

Main Studs, 2-Bolt Main, Oldsmobile, 350, Set

Part Number: ARP-184-5401

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

ARP Main Stud Kits 145-5404

Main Studs, 2-Bolt Main, Chrysler, Dodge, Hemi, Kit

Part Number: ARP-145-5404

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

ARP High Performance Series Main Bolts 146-5001

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 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Melling Cylinder Sleeves CSL465

Cylinder Sleeve, Cast Iron, 4.750 in. Bore I.D., 0.094 in. Wall Thickness, 14.000 in. Length, Each

Part Number: MEL-CSL465

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

Trick Flow® Main Cap Fastener Replacement Hardware Kits TFS-5150R700-HK

Replacement, Hardware Kit, 2-Bolt Main, Ford, with Trick Flow® Main Cap Girdle,

Part Number: TFS-5150R700-HK

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

QuickTime Bellhousing Dowel Pins RM-142

Bellhousing Dowel Pins, 0.021 in. Offset, 0.628 in. Diameter, Ford, 4.6L/5.4L Modular, 5.0 Coyote, Pair

Part Number: QTI-RM-142

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

PRW Main Cap Stud Kits 1000215

Main Cap Fasteners, Main Cap Girdle Stud Kits, 2-bolt, Stud Style, Hex Head, Nuts, Washers, Ford, Big Block FE, Big Block 385 Series, Kit

Part Number: PQX-1000215

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Melling Cylinder Sleeves 590259

Cylinder Sleeve, Cast Iron, 4.000 in. Bore I.D., 0.125 in. Wall Thickness, 5.500 in. Length, Each

Part Number: MEL-590259

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026