Availability
1981 Engine Blocks & Accessories
Main Bolts, High Performance Series, Hex Head, Chromoly, Black Oxide, 4-Bolt Main, Buick, 3.8L, Stage II Aftermarket Block, Kit
Part Number: ARP-123-5202
Not Yet Reviewed
Estimated Ship Date: Mar 2, 2026 if ordered today
Estimated Ship Date: Mar 2, 2026 if ordered today
EXP PLUG KIT
Part Number: PIO-PE-118
Not Yet Reviewed
Main Bolt Kit
Part Number: PIO-855202
Not Yet Reviewed
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 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Main Bolt Kit
Part Number: PIO-855203
Not Yet Reviewed
Main Studs, 2-Bolt, Ford, 429-460, Kit
Part Number: MIL-81188
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Studs, 2-Bolt, Ford, 289, 302, with Windage Tray, Kit
Part Number: MIL-81156
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
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Circle Track
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