Availability
1968 Engine Blocks & Accessories
Four Bolt Main Cap Kit
Part Number: PIO-839020
Not Yet Reviewed
Four Bolt Main Cap Kit
Part Number: PIO-839021
Not Yet Reviewed
Sleeve Assembly Ring Set - Buick 301,350L Eng. (77-79); Checker 327,350 Eng. (69-79), Chev.
Part Number: MAH-S50564CP060
Not Yet Reviewed
Estimated Ship Date: Apr 10, 2026 if ordered today
Estimated Ship Date: Apr 10, 2026 if ordered today
EXPANSION PLUG 25 PC
Part Number: PIO-EP14-25
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
EX.PLUG KIT-BRASS GM V8 350
Part Number: MAH-2199678
Not Yet Reviewed
Estimated Ship Date: Apr 1, 2026 if ordered today
Estimated Ship Date: Apr 1, 2026 if ordered today
Main Studs, 2-Bolt Main, Buick 1968-81, 350, Kit
Part Number: ARP-124-5402
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Studs, 2-Bolt Main, Chrysler, Dodge, Plymouth, 1960-83, 225, L6, Kit
Part Number: ARP-142-5401
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Studs, 2-Bolt Main, Dodge, Plymouth, 426 Hemi, Kit
Part Number: ARP-145-5601
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bolts, Pro Series, 4-Bolt Main, Chevy, 350, with 1/2 in. Straps, Kit
Part Number: ARP-234-5203
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
INSTALLATION KIT
Part Number: BRO-SKBLOCKBBCI
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
Main Caps, Ductile Iron, 5-Cap Set, Straight, 2-Bolt, Chrysler, Dodge, Plymouth, 426-440, Set
Part Number: MIL-11365
Not Yet Reviewed
Main Studs, 2-Bolt, Ford, 429, 460 with Windage Tray, Kit
Part Number: MIL-81189
Not Yet Reviewed
Main Studs, 2-Bolt, Oldsmobile, 350, 400, 425, 455, with Windage Tray, Kit
Part Number: MIL-81217
Not Yet Reviewed
Estimated Ship Date: May 19, 2026 if ordered today
Estimated Ship Date: May 19, 2026 if ordered today
Main Studs, 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Windage Tray, Kit
Part Number: MIL-81129
Not Yet Reviewed
Estimated Ship Date: May 19, 2026 if ordered today
Estimated Ship Date: May 19, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Studs, 4-Bolt Main, Chevy, Big Block, with Milodon Caps, Windage Tray, Kit
Part Number: MIL-81134
Not Yet Reviewed
Estimated Ship Date: May 19, 2026 if ordered today
Estimated Ship Date: May 19, 2026 if ordered today
AN Block Adapters, -16 AN Adapters, Clear Anodized, Chevy, Small Block, Kit
Part Number: PGP-PRP-6851
Not Yet Reviewed
Estimated Ship Date: Mar 18, 2026 if ordered today
Estimated Ship Date: Mar 18, 2026 if ordered today
Engine Expansion Plug Kit 59-81 BUI/GM/PON 4.3L/4.6L/4.9L/5.0L/5.3L/5.7L/6.4L/6.6L/6.9L/7.0L/7.5L
Part Number: EGN-PK16B
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Engine Expansion Plug Kit 64-90 AMC/JEP 3.3L/3.8L/4.2L
Part Number: EGN-PK17
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Engine Expansion Plug Kit 60-83 FRD/MER 2.4L/2.8L/3.3L/4.1L
Part Number: EGN-PK6B
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Studs, 2-Bolt Main, with Windage Tray, Oldsmobile, 400, 425, 455, Kit
Part Number: MIL-81219
Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Chevy, Small Block, 7.245 Wide, Set
Part Number: MIL-11190
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
Engine Expansion Plug Kit 68-97 FRD/LIN/MER 6.1L/7.0L/7.5L
Part Number: EGN-PK26
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Engine Expansion Plug Kit 66-91 AMC/JEP 4.7L/5.0L/5.6L/5.9L/6.4L/6.6L
Part Number: EGN-PK18
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
EXP PLUG KIT
Part Number: PIO-PE-156
Not Yet Reviewed
EXP PLUG KIT
Part Number: PIO-PE-157
Not Yet Reviewed
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