1991 Engine Blocks & Accessories

Cylinder Head Dowel Pins, 0.638 in. Outside Diameter, .503 in. Height, Chevy, Big Block, Pair

Part Number: MRG-4377

Not Yet Reviewed

Estimated Ship Date: Today

Cylinder Head Pin, 0.3094 in. O.D., 0.563 in. Height, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: ADO-585927

4.22 out of 5 stars ( 9 )

Estimated Ship Date: Today

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: Today

Main Studs, 2-Bolt Main, Mitsubishi, 2.0L, 4G63, 4G63T, Kit

Part Number: ARP-207-5401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Studs, 2-Bolt, for use on Acura®, 1.8L, Kit

Part Number: ARP-208-5404

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Freeze Plugs, Steel, 1.625 in. Diameter, AMC, Buick, Cadillac, Chevy, GMC, Chrysler, Dodge, Jeep, Set of 10

Part Number: RNB-555-030

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Engine Expansion Plugs, Steel, 0.375 in. Diameter, 0.150 in. Height, Dodge, Ford, Mercury, Set of 10

Part Number: RNB-555-115

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

Freeze Plug Kit, Steel, Chevy, Small Block, Kit

Part Number: PIO-PE-100

Not Yet Reviewed

Estimated Ship Date: Today

Main Cap Fasteners, Main Stud Kits, 4-bolt Main, Studs, Standard Hex Nuts, Designed for Dart SHP Blocks, Ford, 5.8L, Kit

Part Number: ARP-154-5613

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Cylinder Head Dowel Pins, Offset 0.030 in., Chevy Big Block, Chrysler Big Block, Set of 4

Part Number: MOR-37900

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Engine Hardware, Dowels, Keys, Cam Bolts/Washers, Ford, 460, Kit

Part Number: DUR-FKF-3A

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Today

Engine Expansion Plugs, Steel, 1.250 in. Diameter, 0.300 in. Height, Cadillac, Chevy, Chrysler, Set of 10

Part Number: RNB-555-024

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

Cam Plug, Rear of Block, Chevy, Ford, Small Block, Each

Part Number: DRT-32510000

3.63 out of 5 stars ( 8 )

Estimated Ship Date: Today

Bellhousing Dowel Pin, 0.500 in. Diameter, 1.000 in. Length, Ford, Each

Part Number: DRT-32901400

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Engine Hardware, Cylinder Head Dowels, Woodruff Keys, Oil Pump Dowel, Cam Bolts, Chevy, Small Block, Kit

Part Number: DUR-FKC-1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Main Cap Girdle, 1045 Billet Steel, No Hardware, for Chevy Big Block 454, Each

Part Number: PQX-9045401

Not Yet Reviewed

Estimated Ship Date: Jun 3, 2026 if ordered today

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• Free Shipping
• Special Order

Freeze Plugs, Brass, Big Block Chevy, Kit

Part Number: PIO-PE102B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit

Part Number: CTR-21-850

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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• Free Shipping
• Special Order

Steel Cup Expansion Plug 15/16 In., Height 0.380

Part Number: RNB-555-016

Not Yet Reviewed

Estimated Ship Date: Today

Engine Expansion Plug, Steel, AMC, Buick, Cadillac, Chevy, Ford, GMC, Jeep, Mercury, Oldsmobile, Set of 10

Part Number: RNB-555-028

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Engine Expansion Plugs, Steel, 0.540 in. O.D., 0.180 in. Height, Buick, Chevy, Ford, GMC, Mercury, Set of 10

Part Number: RNB-555-007

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Engine Finishing Hardware, Head Dowels, Camshaft Bolts, Crank Key, Oil Pump Dowel, Chevy, Small Block, Kit

Part Number: CCA-233

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Today

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: Today

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: Today

Engine Expansion Plugs, Freeze Plugs, Steel, Camshaft Plug and Oil Galley Plugs, Chrysler, Dodge, Jeep, Plymouth, Kit

Part Number: MEL-MPE-113R

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Today