Availability
Engine Blocks & Accessories
Showing In Stock Items. Show All 148 Items.
Engine Block, 350 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.000 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal
Part Number: SUM-150200
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
BUILD IT WITH SUMMIT!
Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal
Part Number: SUM-150202
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 400 Mains, 4.125 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal
Part Number: SUM-150201
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
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
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Engine Block, 350 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.000 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal
Part Number: SUM-150203
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Main Studs, 6-Bolt Main, Ford, 5.0L, Modular, Coyote Engine, Kit
Part Number: ARP-156-5803
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Cylinder Head Dowel Pins, Split-type, Chevy, Small Block LS, Set of 4
Part Number: AAF-ALL87024
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit
Part Number: AAF-ALL26126
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Main Cap Girdle, Steel, Black Oxide, Ford, 429/460, Kit
Part Number: CTR-21-066
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Bellhousing Dowel Pins, .625 in. Diameter, .007 in. Offset, Buick, Chevy, Oldsmobile, Pontiac, Pair
Part Number: MOR-37934
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Bellhousing Dowel Pins, .625 in. Diameter, Buick, Chevy, Oldsmobile, Pontiac, Pair
Part Number: MOR-37932
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: WRL-084030
Estimated Ship Date: Mar 17, 2026 if ordered today
Estimated Ship Date: Mar 17, 2026 if ordered today
Freeze Plug Kit, Brass, Chevy, Small Block, 283-350, Kit
Part Number: MIL-34031
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Bellhousing Dowel Pins, .625 in. Diameter, .014 in. Offset, Buick, Chevy, Oldsmobile, Pontiac, Pair
Part Number: MOR-37936
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Bellhousing Dowel Pins, .625 in. Diameter, .021 in. Offset, Buick, Chevy, Oldsmobile, Pontiac, Pair
Part Number: MOR-37938
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Main Cap Girdle, Stroker Clearanced, Laser Cut 1/2 in. Steel, with Hardware, Steel, Black Oxide, Ford, 289/302, Kit
Part Number: CTR-21-060
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit
Part Number: AAF-ALL26125
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Main Cap Girdle, Steel, Black Oxide, Ford, 351W, Kit
Part Number: CTR-21-062
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Freeze Plug Kit, Brass, Chrysler, 273, 318, 340, 360, Kit
Part Number: MIL-34040
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Oil Pan Rail Girdle, Small Block Chevrolet, 1-Piece Rear Main, 1986-up, Each
Part Number: CHP-CP21
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Freeze Plug Kit, Brass, Ford Big Block 429-460, Kit
Part Number: MIL-34038
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Freeze Plug Kit, Brass, Ford, Big Block FE, 352, 390, 428, Kit
Part Number: MIL-34036
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Chevy, Small Block, Set
Part Number: MIL-11050
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Bellhousing Dowel Pins, Extra-Long, Hollow, 0.625 in. Diameter, 1.500 in. Length, Chevy, Pair
Part Number: AAF-ALL38152
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Each
Part Number: MOR-38315
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster