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Instruction Sheets for Part Number MIL-81133
Main Studs, 4-Bolt Main, Chevy, Big Block, with Milodon Caps, Kit
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
81133
Part Type:
Product Line:
Summit Racing Part Number:
MIL-81133
UPC:
806621811335
Main Bolt Style:
4-bolt
Fastener Style:
Stud
Fastener Nut Style:
Standard hex
For Use with Stud Girdle:
No
Works with Windage Tray:
No
Fastener Tensile Strength (psi):
190,000 psi
Nuts Included:
Yes
Washers Included:
Yes
Quantity:
Sold as a kit.
Notes:
For Milodon angle bolt main caps.
Milodon Main Stud Kits
Milodon main stud kits are required where maximum gasket loading and minimal wear and tear are exerted on the block threads. These engine studs are premium-grade, race-quality studs that are created from aircraft-quality 8740 chromoly steel right in Milodon's own plant. They are ground and thread-rolled after heat treatment to ensure the exacting tolerances that Milodon requires for all of their fasteners. This ensures strength and consistent torque readings. The tensile strength of these premium fasteners is 190,000 psi, which is more than adequate for the most demanding applications. All kits come complete with 4130 heat-treated, parallel-ground washers and high-strength nuts.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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