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Product Summary

265, 267, 283, 302, 305, 307, 327, 350, 400, 262

  • Designed to fit a large variety of engines (see list)
  • Header bolts have 3/8"-16 x .750" UHC threads
  • Specifically made to use a 3/8" 12 pt. socket
  • Has a 170,000 PSI breaking strength
  • Manufactured from stainless steel and has a stunning polished finish

Key Specs

MFG. Part #400-1201
BrandARP

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Details

ARP Fasteners 12 point header bolts with 3/8"-16 x .750" UHC threads. Includes washers. Uses 3/8" 12 pt. socket. 170,000 PSI.

Perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

Specifications

KEY SPECS
MFG. Part #400-1201
BrandARP
GENERAL
Overall Length1.11"
Under Head Length0.75"
Thread Pitch3/8"-16
Wrench Type12 Point
Material TypeStainless Steel
FinishPolished
Sold in QuantitySet
NotesWashers included, sold in a set of 12.
GTIN Code672036013219