ARP Big Block Chevy & Ford 3/8" 12-Point Header Bolt Kit

Upgrade your exhaust header hardware with the ARP Big Block Chevy & Ford 3/8" 12-Point Header Bolt Kit. Designed for securing exhaust headers to the cylinder heads, this kit provides high-strength ARP fasteners for Big Block Chevrolet and Big Block Ford engine applications.

ARP part number 100-1202 is manufactured from 8740 chrome moly and includes 16 header bolts. Each bolt features a 3/8" thread size, 0.750" under-head length, and a 12-point head design. ARP categorizes this kit under Cylinder Head Header. :contentReference[oaicite:0]{index=0}

Product Features:

ARP Header Bolt Kit
Designed for Big Block Chevrolet and Ford Applications
12-Point Fastener Head Design
8740 Chrome Moly Construction
3/8" Thread Size
0.750" Under-Head Length
Includes 16 Header Bolts
Designed for the Cylinder Head Header Location
High-Quality ARP Fastener Construction
Ideal for Performance, Racing and Street Engine Builds

Specifications:

Manufacturer	ARP (Automotive Racing Products)
Part Number	100-1202
Product Type	Header Bolt Kit
Head Style	12-Point
Material	8740 Chrome Moly
Thread Size	3/8"
Under-Head Length (UHL)	0.750"
Quantity	16 Bolts
Fastener Location	Cylinder Head Header

ARP Engine Applications:

Chevrolet - Generic - Big Block
Chevrolet - Big Block - Generic
Ford - Generic
Ford - Big Block - Generic

Fitment Notes:

Designed for Big Block Chevrolet and Big Block Ford header applications.
Designed for securing exhaust headers to the cylinder heads.
ARP lists generic Chevrolet Big Block and Ford Big Block applications rather than specific engine displacements.
Includes 16 bolts with a 0.750" under-head length.
Uses a 3/8" thread size.
Features 12-point heads for the fasteners.
Verify cylinder head thread size and header flange requirements before installation.