Availability
CHEVROLET Engine Blocks & Accessories
Bare Blocks, Dart Little M Series, Cast Iron, 9.500 in. Deck Height, 4.125 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Small Block, Chevy, Each
Part Number: DRT-31181235
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Engine Block, Cast Iron, 4-Bolt Mains, 3.995 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: WRL-084080
Not Yet Reviewed
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
DOWEL PIN, FOR LS BLOCK MAIN CAPS
Part Number: RHS-549201-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.595 in. Bore, 2-Piece Seal, 9.800 in. Deck, Chevy, Big Block, Each
Part Number: WRL-091102
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.495 in. Bore, 2-Piece Seal, 9.800 in. Deck, Chevy, Big Block, Each
Part Number: WRL-091101
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Dart Big M Sportsman Big Block Chevy Cast Iron Bare Blocks 31223444
Estimated Ship Date: Tomorrow
Engine Block, Cast Iron, 4-Bolt Mains, 4.245 in. Diameter Bore, 9.800 in. Deck, Nodular Iron Main Caps, 1-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: WRL-091103
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Bare Blocks, Dart Big M Sportsman Series, Cast Iron,10.200 in. Deck Height, 4.560 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each
Part Number: DRT-31223554
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Main Cap, Ductile Iron, Front, Angled Outer Bolts, 4-Bolt, Chevy, Small Block, Each
Part Number: MIL-11053
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Engine Expansion Plugs, BTR Plug Core, 0.625 in. Diameter, 0.25 in. Thick
Part Number: BTC-BTR27693
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Chevy, Small Block, Set
Part Number: MIL-11160
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Main Studs, 2-Bolt Main, 180,000 psi Yield Strength, Washers, Hex Nuts, Chevy, Small Block, Kit
Part Number: SUM-910205
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Studs, 2-Bolt, Chevy, Saturn, 2.0L, Kit
Part Number: ARP-209-5401
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Freeze Plugs, Brass, Chevy, 400, Small Block, Kit
Part Number: PRO-66551
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, Gen V, LT1, Chevy, Kit
Part Number: PQX-1034613
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Oil Cooler Block-Off Plate, Aluminum, Black Anodized, 1/8 in. NPT Port, Chevy, LS, Each
Part Number: PGP-PRP-4526
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Rear Main Seal Cover Kit
Part Number: RNB-635-786
Not Yet Reviewed
Estimated Ship Date: Mar 25, 2026 if ordered today
Estimated Ship Date: Mar 25, 2026 if ordered today
Freeze Plugs, Brass, 1.250 in. Diameter, Buick, Cadillac, Chevy, GMC, Pontiac, Dodge, Ford, Set of 10
Part Number: RNB-565-023
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Expansion Plugs, Steel, Chevy, 3.2L, 3.8L, Set of 10
Part Number: RNB-555-019
Not Yet Reviewed
Estimated Ship Date: Mar 24, 2026 if ordered today
Estimated Ship Date: Mar 24, 2026 if ordered today
Engine Block Dowel Pins, Rear Main Seal Housing, 1-Piece Rear Main, Chevrolet, Small Block Gen I, Each
Part Number: NAL-9441003
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Big Block, Set of 3
Part Number: PQX-1745402
Not Yet Reviewed
Estimated Ship Date: May 7, 2026 if ordered today
Estimated Ship Date: May 7, 2026 if ordered today
MAIN GIRDLE, BILLET STEEL, CHEV 400, incl PRW fasteners & hdwe
Part Number: PQX-9040000
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Freeze Plugs, Steel, 2.219 in. Diameter, 0.300 in. Height, Set of 10
Part Number: RNB-555-071
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Freeze Plugs, Steel, 0.625 in. Diameter, Height 0.220 in., Chevy, Geo, Set of 10
Part Number: RNB-555-108
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Freeze Plug Kits Bagged - Brass
Part Number: MEL-MPE-104BR
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Freeze Plugs, Steel, 0.438 in. Diameter, Chevy, Chrysler, Dodge, Eagle, Ford, GMC, Jeep, Mercury, Set of 10
Part Number: RNB-555-003
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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