Availability
1978 Engine Blocks & Accessories
Main Studs, 2-Bolt, Pontiac, 326-455, Kit
Part Number: MIL-81221
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Studs, 4-Bolt Main, Chevy, Big Block, with Milodon Caps, Kit
Part Number: MIL-81133
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
CHEV 400, Stud Kit, Main Girdle, Includes 10ea, 1/2" Longer Studs, 7/16" -14/20 x 5.00" Studs, PRW Fasteners & Hardware.
Part Number: PQX-1000207
Not Yet Reviewed
Estimated Ship Date: Jun 3, 2026 if ordered today
Estimated Ship Date: Jun 3, 2026 if ordered today
Offset Dowel Pins Mazda Rotary .007
Part Number: IST-BHI-00007
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Engine Expansion Plug Kit 65-90 BUI/CHV/GMC/OLD/PON 6.0L/6.5L/6.6L/7.0L/7.4L/L
Part Number: EGN-PK3
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Engines, Bare Blocks, Man O'War Bare Block, 351 Cleveland Mains, 9.500 in. Deck Height, 4-bolt Main Style, Ford, 5.0L, 5.8L, Small Block Windsor, Each
Part Number: WRL-087072
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
This product may not be eligible for select promotional offers
Freeze Plug Kits Bagged- Steel
Part Number: MEL-MPE-167R
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 - Brass
Part Number: MEL-MPE-140BR
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-124R
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 - Brass
Part Number: MEL-MPE-153BR
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-163R
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 - Brass
Part Number: MEL-MPE-167BR
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 Plug Kit 75-95 BUI/CAD/CHV/GMC/OLD/PON 3.0L/3.2L/3.8L/4.1L
Part Number: EGN-PK19B
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Engine Expansion Plug Kit 70-80 CHV/GMC/OLD/PON 6.6L
Part Number: EGN-PK2
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Engine Expansion Plug Kit 68-84 CAD 6.0L/7.0L/7.7L/8.2L
Part Number: EGN-PK21B
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Engine Expansion Plug Kit 75-95 TOY 2.2L/2.4L
Part Number: EGN-PK32
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Expansion Plugs, Steel, Diameter 1.990 in., Various, Each
Part Number: RNB-555-094
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Main Studs, 2-Bolt Main, Chevy, Big Block, Kit
Part Number: MIL-81138
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Expansion Plugs, Steel, Diameter 2.074 in., Various, Each
Part Number: RNB-555-073
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Sleeve Assembly Ring Set - Buick 301,350L Eng. (77-79), Checker 327,350 Eng. (69-79), Chev.
Part Number: MAH-S50564CP
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered 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: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
BR EXP PLUG KIT
Part Number: PIO-PE-130-BR
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
EXP PLUG KIT
Part Number: PIO-PE-186-R
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
EXP PLUG KIT
Part Number: PIO-PE-144-R
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
BR EXP PLUG KIT
Part Number: PIO-PE-112-BR
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
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