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Instruction Sheets for Part Number MIL-81140
Main Cap Fasteners, Milodon Straight Bolt Caps, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Chevrolet, Big Block, Kit
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Estimated Ship Date: Nov 2, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
81140
Part Type:
Product Line:
Summit Racing Part Number:
MIL-81140
UPC:
806621811403
Main Bolt Style:
4-bolt
Fastener Style:
Stud
Fastener Nut Style:
Standard hex
Head Style:
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 use on engines with Milodon straight cap main bolts.
Milodon Main Bolt Kits
Milodon premium-grade bolts are forged from 8740 chromoly steel. They are ground and thread-rolled after heat-treatment to ensure exacting tolerances. These bolts feature a 1/2 in. hex head for greater socket clearance, a wide flange area under the head for greater load spread, and a black oxide finish.
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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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