Engine Blocks & Parts | Summit Racing

Dart Main Caps 32743020

main cap,Main Cap-Front-LSNext2-1/2-350MB-Steel

Part Number: DRT-32743020

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Dart Main Caps 32743030

main cap,Main Cap-Intr-SBC LSNext2-1/2-350MB-Steel

Part Number: DRT-32743030

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Dart Main Caps 32743030H

main cap,Main Cap-Intr-SBC LSNext2-1/2-350MB-Steel HONED READY

Part Number: DRT-32743030H

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Dart Main Caps 32743020H

main cap,Main Cap-Front-LSNext2-1/2-350MB-Steel HONED READY

Part Number: DRT-32743020H

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Dart Main Caps 32743040H

main cap,Main Cap-Center Thrust-SBC LSN2-1/2-350MB-Steel HONED READY

Part Number: DRT-32743040H

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Dart Main Caps 32743040

main cap,Main Cap-Center Thrust-SBC LSNext2-1/2-350MB-Steel

Part Number: DRT-32743040

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Dart Main Caps 32743010

main cap,Main Cap-Set-SBC LSN2-1/2-350MB-Steel w/Rear cap

Part Number: DRT-32743010

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

MAHLE Original Engine Expansion Plugs 219-3080

EX.PLUG-STEEL-DEEP CUP-1-3/8

Part Number: MAH-2193080

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

ARP Main Stud Kits 234-5608

ARP Main Stud Kits 234-5608

Main Studs, 6-Bolt Main, Chevrolet, 4.8, 5.3, 5.7, 6.0L, Kit

Part Number: ARP-234-5608

4.91 out of 5 stars ( 66 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Fleece Performance Freedom Series LSR Aluminum Engine Blocks FPE-LSR-SD10X

Bare Block, LSR, Aluminum, LS Mains, 4.125 in. Bore, 9.25 in. Deck Height, Each

Part Number: FLE-FPELSRSD10X

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ SPC Pro LS Engine Block SUM-150215

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026

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ARP Main Stud Kits 234-5802

Main Studs, 4-Bolt Main, Chevy, 6.2L, Kit

Part Number: ARP-234-5802

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Melling Freeze Plugs MPE-100BR

Freeze Plugs, Brass, Chevy, Small Block, Kit

Part Number: MEL-MPE-100BR

4.65 out of 5 stars ( 20 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP High Performance Series Main Bolts 134-5202

Main Bolts, High Performance Series, 4-Bolt Main, Large Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5202

4.97 out of 5 stars ( 37 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP Main Stud Kits 244-5400

Main Studs, Chromoly, Hex Head, 2-Bolt, Chrysler, Dodge, 5.7/6.1L, Kit

Part Number: ARP-244-5400

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP High Performance Series Main Bolts 154-5001

Main Bolts, High Performance Series, 2-Bolt Main, Ford, 289-302, Small Block, Kit

Part Number: ARP-154-5001

4.94 out of 5 stars ( 33 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP Main Stud Kits 134-5601

Main Studs, 4-Bolt Main, Large Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5601

4.96 out of 5 stars ( 26 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP High Performance Series Main Bolts 134-5001

Main Bolts, High Performance Series, 2-Bolt Main, Large Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5001

4.86 out of 5 stars ( 35 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP Main Stud Kits 135-5601

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

Part Number: ARP-135-5601

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ICT Billet LS Lifter Valley Covers 551606LS

Lifter Valley Plate, LS Lifter Valley Cover, Aluminum, Natural, Oil Pressure Sensor Port, Chevrolet, Small Block LS, Each

Part Number: ICB-551606LS

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP Main Stud Kits 156-5803

Main Studs, 6-Bolt Main, Ford, 5.0L, Modular, Coyote Engine, Kit

Part Number: ARP-156-5803

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP Main Stud Kits 134-5401

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

Part Number: ARP-134-5401

5.0 out of 5 stars ( 17 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Melling Freeze Plugs MPE-108BR

Freeze Plugs, Brass, Ford, Lincoln, Mercury, Small Block, Kit

Part Number: MEL-MPE-108BR

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP High Performance Series Main Bolts 135-5201

Main Bolts, High Performance Series, 4-Bolt Main, Chevy, Big Block, Kit

Part Number: ARP-135-5201

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

ARP High Performance Series Main Bolts 154-5003

Main Bolts, High Performance Series, 2-Bolt Main, Ford, Small Block, 351W, Kit

Part Number: ARP-154-5003

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Fleece Performance Freedom Series LTR Aluminum Engine Blocks FPE-LTR-SD10X

Bare Block, LTR, Aluminum, LS Mains, 4.125 in. Bore, 9.25 in. Deck Height, Each

Part Number: FLE-FPELTRSD10X

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today