Availability
1991 Engine Blocks & Accessories
Freeze Plugs, Steel, 29/64 in. Diameter, Steel, Shallow Cup, Ford, Jeep, Set of 10
Part Number: RNB-555-004
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Studs, 4-Bolt Main, Chevy Small Block, Large Journal, with Straps & Splayed Caps, Kit
Part Number: ARP-234-5604
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Expansion Plug, Engine Oil Galley Plug, Steel, 2.00 in. Diameter, Jeep, Each
Part Number: MOP-J3105394
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
AN Block Adapters, -12 AN Adapters, Black Anodized, Chevy, Big Block, Kit
Part Number: PGP-PRP-6862
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Freeze Plug Kit, Brass, Chevy, Pontiac, Buick, GMC, Oldsmobile, V6, Kit
Part Number: PIO-PE-137-BR
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Main Studs, 2-Bolt, Chrysler 318-360, 383-440 and 331-392 Early Hemi, Kit
Part Number: MIL-81185
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bolt Kit
Part Number: PIO-855200
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
MAIN GIRDLE, BILLET STEEL, FORD 460, Does Not incl Studs or Fasteners
Part Number: PQX-9046001
Not Yet Reviewed
Estimated Ship Date: Jun 3, 2026 if ordered today
Estimated Ship Date: Jun 3, 2026 if ordered today
Freeze Plugs, Steel, Chrysler, Dodge, Plymouth, 318, 360, Kit
Part Number: RNB-02651
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Expansion Plugs, Pipe Plugs, Ford, Kit
Part Number: RNB-02663
Estimated Ship Date: Today
Estimated Ship Date: Today
Deck Plugs, Steel, 3/4 in. NPT, Trick Flow®, Ford Heads, Pair
Part Number: TFS-51600750
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Freeze Plugs, Steel, Chevy, 267, 283, 302, 305, 307, 327, 350, Kit
Part Number: PIO-PE100R
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
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: Jun 3, 2026 if ordered today
Estimated Ship Date: Jun 3, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Expansion Plug, Rubber, 3/4 in. To 7/8 in., Each
Part Number: RNB-02608
Estimated Ship Date: Today
Estimated Ship Date: Today
Freeze Plug, Steel, Chevy, Dart SHP, Each
Part Number: DRT-32540000
Estimated Ship Date: Today
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Main Cap Fastener, Bolt, Hex, 1/2-13 in. Thread, 3 in. Length, Steel, Black Oxide, Jeep, Each
Part Number: CWA-J4006948
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Expansion Plugs, Steel, 0.625 in. O.D., 0.232 in. Height, Buick, Cadillac, Chevy, Jeep, Olds, Set of 10
Part Number: RNB-555-011
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Expansion Plugs, Steel, Diameter 1.513 in., Various, Each
Part Number: RNB-555-077
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Expansion Plugs, Steel, Ford, Mercury, Set of 10
Part Number: RNB-555-084
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Freeze Plugs, Steel, AMC, Jeep, International, Set of 7
Part Number: RNB-557-017
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Expansion Plugs, Steel, Diameter 1.199 in., Various, Each
Part Number: RNB-555-100
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Freeze Plug Kits Bagged- Steel
Part Number: MEL-MPE-125R
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
This product may not be eligible for select promotional offers
Freeze Plug Kits Bagged- Steel
Part Number: MEL-MPE-275R
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
This product may not be eligible for select promotional offers
Engine Expansion Plugs, Steel, 3.00 in. Diameter, Chevy, GMC, Set of 10
Part Number: RNB-550-034
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
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