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Product Summary

Many Engines, 1.36" Overall Length, Hex Wrench Type

  • Heat-treated header bolts featuring 3/8"-16 x 1" threads, a flanged 7/16" hex head, and a zinc plated finish
  • Set of 12 bolts for popular AMC V8, Small Block Chevy, Big Block Chrysler, Pontiac V8, and Oldsmobile V8 engines
  • 1" length for use with thick header flange or thick header gasket
  • Flanged head for extra header clearance and smaller hex head
  • Overall Length: 1.36"

Key Specs

MFG. Part #550917
BrandSpeedway Motors

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Speedway Motors 550917 Details

Heat-treated steel header bolts featuring 3/8"-16 x 1" threads, a hex head, and a zinc finish. Feature a flanged head and 7/16 inch hex for extra clearance for sockets or wrenches. These are great for headers where you cannot get a socket to clear the primary tubes and can still fit a wrench on the hex head. Sold a a set of 12 for popular Small Block Chevy, Big Block Chrysler, AMC V8, Pontiac V8, and Oldsmobile V8 engines. 1 inch length is best for use with headers with thick flanges or thick gaskets. For shorter header bolts check out our 3/8-16 x 3/4 Inch Header Bolts.

Speedway Motors 550917 Specifications

KEY SPECS
MFG. Part #550917
BrandSpeedway Motors
GENERAL
Speedway Motors Catalog Part #550-917
Overall Length1.36"
Under Head Length1"
Thread Pitch3/8"-16
Wrench TypeHex
Material TypeSteel
FinishZinc
Sold in QuantitySet
NotesSet of 12 bolts.
ColorZinc