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Main Bolts, 6-bolt Style, External Hex, Chevy, LS, Kit
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Kit/Combo Contents
ACDelco 12556127 - ACDelco GM Genuine Parts Replacement Bolts
Bolt, GM Genuine Parts Replacement Bolt, Hex Head Flange, M8 x 1.25, 0.900 in. Underhead Length, Grade 10.9, Steel, Gray, Each
Kit Item Quantity: 10
Chevrolet Performance 12560272 - Chevrolet Performance Main Cap Fasteners
Main Bolts, 6-Bolt Main, Inner Bolts, Chevy, 4.8, 5.3, 5.7, 6.0L, Each
Kit Item Quantity: 10
Chevrolet Performance 12560273 - Chevrolet Performance Main Cap Fasteners
Main Bolts, Outer Bolts, With Windage Tray, Chevy, LS, Each
Kit Item Quantity: 10
Overview
Brand:
Manufacturer's Part Number:
08-0064
Part Type:
Product Line:
Summit Racing Part Number:
CMB-08-0064
Main Bolt Style:
6-bolt
Fastener Style:
Bolt
Head Style:
External hex
For Use with Stud Girdle:
No
Works with Windage Tray:
Yes
Nuts Included:
No
Washers Included:
No
Quantity:
Sold as a kit.
Notes:
Includes main cap bolts as well as side rail bolt kit.
Summit Racing™ Main Bolt Kits
Make sure your crankshaft is secured properly using a set of these Summit Racing™ main bolt kits. They include high-tensile strength bolts that deliver maximum reliability where you need it the most. The bolt kits are designed for use with stock or aftermarket main caps, and can be installed without any modifications.
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Some parts are not legal for use in California or other states with similar laws / regulations
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