Availability
MAIN CAP 8620 STEEL FOR RHS LS Alumiunum Race Blocks
Part Number: RHS-549100-1
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Caps, Merlin III, 3-Center, Angled Outer Bolts, 4-Bolt, Chevrolet, Big Block, Each
Part Number: WRL-703370C
Not Yet Reviewed
Estimated Ship Date: Aug 6, 2025 if ordered today
Estimated Ship Date: Aug 6, 2025 if ordered today
Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit
Part Number: MIL-81135
Not Yet Reviewed
Estimated Ship Date: Oct 21, 2025 if ordered today
Estimated Ship Date: Oct 21, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
MAIN GIRDLE, BILLET STEEL, CHEV 400, incl PRW fasteners & hdwe
Part Number: PQX-9040000
Not Yet Reviewed
Estimated Ship Date: Sep 8, 2025 if ordered today
Estimated Ship Date: Sep 8, 2025 if ordered today
Main Studs, 4-Bolt Main, Chevy, Big Block, Mark IV Bowtie, with Windage Tray
Part Number: ARP-235-5702
Not Yet Reviewed
Estimated Ship Date: Aug 18, 2025 if ordered today
Estimated Ship Date: Aug 18, 2025 if ordered today
Cylinder Sleeve, Cast Iron, 4.490 in. Bore I.D., 0.185 in. Wall Thickness, 6.370 in. Length, Each
Part Number: DRT-32160211
Not Yet Reviewed
Estimated Ship Date: Sep 8, 2025 if ordered today
Estimated Ship Date: Sep 8, 2025 if ordered today
Main Cap, Billet Steel, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Small Block, Each
Part Number: HRS-H350R-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Cap, Ductile Iron, Front, Straight Outer Bolts, 2-Bolt, Large Journal, Chevy, Small Block, Each
Part Number: MIL-11153
Not Yet Reviewed
Estimated Ship Date: Oct 21, 2025 if ordered today
Estimated Ship Date: Oct 21, 2025 if ordered today
Main Cap, Billet Steel, Front, Straight Outer Bolts, 4-Bolt, Chevy, Big Block, Each
Part Number: HRS-H454-1
Not Yet Reviewed
Estimated Ship Date: Aug 14, 2025 if ordered today
Estimated Ship Date: Aug 14, 2025 if ordered today
Main Cap, SHP, 4-bolt, 3-center Position, Ductile Iron, Each
Part Number: DRT-32773030H
Not Yet Reviewed
Estimated Ship Date: Sep 8, 2025 if ordered today
Estimated Ship Date: Sep 8, 2025 if ordered today
Engine Valley Cover, Trussed, Billet Aluminum, Chrome, Hardware Included, Chevy, Each
Part Number: TSN-81044C
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Studs, 4-Bolt Splayed Main, with Windage Tray, Chevy, 400, Small Block, Kit
Part Number: ARP-234-5605
Estimated Ship Date: Aug 11, 2025 if ordered today
Estimated Ship Date: Aug 11, 2025 if ordered today
Engine Valley Cover, Trussed, Billet Aluminum, Black, Hardware Included, Chevy, Each
Part Number: TSN-81044BK
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit
Part Number: EW1-350ERMSA
Not Yet Reviewed
Estimated Ship Date: Jul 28, 2025 if ordered today
Estimated Ship Date: Jul 28, 2025 if ordered today
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: Jul 30, 2025 if ordered today
Estimated Ship Date: Jul 30, 2025 if ordered today
Main Studs, 4-Bolt, Chevy, 350, 400, Dart Little M Block with Iron Mains, Kit
Part Number: ARP-234-5609
Not Yet Reviewed
Estimated Ship Date: Aug 11, 2025 if ordered today
Estimated Ship Date: Aug 11, 2025 if ordered today
Main Studs, Chromoly, Hex Head, 2-Bolt, Chevy, 6.6L, Duramax Diesel, LB7, LLY, Kit
Part Number: ARP-230-5401
Not Yet Reviewed
Estimated Ship Date: Aug 11, 2025 if ordered today
Estimated Ship Date: Aug 11, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Cap Girdle, 2-Piece Rear Seal, 1045 Billet Steel, with PRW Steel Studs, Spacers, and Nuts, Chevy, 5.7L/350 Only, Each
Part Number: PQX-9035000
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Valley Cover, Trussed, Billet Aluminum, Chrome, Hardware Included, Chevy, Each
Part Number: TSN-81043C
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Studs, Straight 4-Bolt Main, Chevy, 350, 400, with Windage Tray, Kit
Part Number: MIL-81117
Estimated Ship Date: Oct 21, 2025 if ordered today
Estimated Ship Date: Oct 21, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Cap, Rear, Merlin III/IV, 4-Bolt, 454 Mains, Ductile Iron, Chevrolet, Big Block, Each
Part Number: WRL-WP1703365R
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Engine Valley Cover, Trussed, Billet Aluminum, Black, Hardware Included, Chevy, Each
Part Number: TSN-81043BK
Not Yet Reviewed
Estimated Ship Date: Oct 6, 2025 if ordered today
Estimated Ship Date: Oct 6, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Not Yet Reviewed
Estimated Ship Date: Today
Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit
Part Number: MIL-81137
Estimated Ship Date: Today
Estimated Ship Date: Today
Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit
Part Number: EW1-350LRMSA
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
INSTALLATION KIT
Part Number: BRO-SKBLOCKBBCI
Not Yet Reviewed
Estimated Ship Date: Aug 11, 2025 if ordered today
Estimated Ship Date: Aug 11, 2025 if ordered today
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