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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 hex head, and a black oxide finish
  • Fits tube headers onto AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400
  • Fits Pontiac 326-455, and Olds 330-455 Engines
  • Set of 12 bolts
  • Overall Length: 1.36"

Key Specs

MFG. Part #550917
BrandSpeedway Motors

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Details

Heat-treated steel header bolts featuring 3/8"-16 x 1" threads, a hex head, and a black oxide finish. Fits tube headers onto AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455 engines.

Set of 12 bolts. 

Specifications

KEY SPECS
MFG. Part #550917
BrandSpeedway Motors
GENERAL
Overall Length1.36"
Under Head Length1"
Thread Pitch3/8"-16
Wrench TypeHex
Material TypeSteel
FinishBlack Oxide
Sold in QuantitySet
NotesSet of 12 bolts.
ColorBlack