Chevy Big Block & Ford V8 Chrome Steel 6-Point Head Exhaust Header Bolt Set

• Matched 6-point socket-head bolts for a clean, secure header-to-flange installation

• 6-point head design gives strong wrench grip on high-torque header bolts

• Fits 3/8"-16 header bolt patterns on Big Block Chevy & Ford V8 builds

• Complete 16-piece set in polished chrome for a finished underhood look

Get a clean, secure header installation with this 16-piece set of 6-point head bolts, sized to fit 3/8"-16 header bolt patterns common on Big Block Chevy and Ford V8 exhaust header applications. The 6-point head design gives you strong wrench grip for header bolts that see repeated heat cycling and vibration.

Finished in polished chrome for a clean, finished look under the hood, this hardware set is a straightforward way to replace missing, worn, or mismatched header bolts on street and performance big block builds. Covers classic Big Block Chevy and Ford FE, 385-series, Cleveland, Modified, and Windsor V8 platforms.

Always verify header flange thickness and required bolt length before ordering — not all headers use the same bolt size, and fitment depends on matching the correct thread size and length to your specific header.

Applications
Designed for exhaust headers using 3/8"-16 bolt threads. Covers Chevrolet Big Block V8 (Gen I–VI) and Ford Big Block FE, "385"-series, Cleveland "335," Modified "335," and Small Block Windsor V8 platforms — see full engine and vehicle compatibility below.

Installation
Confirm your header's flange thickness and required bolt length before installation — header bolt length requirements vary by header design and engine setup, so verify thread size and length against your specific header rather than assuming universal fit.

Will these bolts fit a big block Chevy 454?
Yes. The 454 is covered under Gen II (Mark IV), Gen V, and Gen VI Chevy big block platforms, all of which use this bolt set's 3/8"-16 thread pattern.

Does this kit work on a Ford 429 or 460 big block?
Yes. Both the 429 and 460 fall under the Ford Big Block "385" series, which this 3/8"-16, 3/4" thread length bolt set is designed for.

Will this fit a Ford 351 Windsor or 351 Cleveland?
Yes, but confirm which one you have first — 351 Windsor and 351 Cleveland are different engine families (Small Block Windsor vs. Cleveland "335" series), and this kit covers both, along with the 351M under Ford Modified "335."

What's the difference between the FE and 385-series Ford big blocks this kit fits?
FE engines (352, 360, 390, 406, 410, 427, 428) and 385-series engines (370, 429, 460) are separate Ford big block families built on different architectures. This bolt set's 3/8"-16 thread pattern is common to header bolt mounting on both, so it fits either family.

What's the difference between this kit and the gold zinc 6-point version?
This kit is finished in polished chrome rather than gold zinc, giving a brighter, more finished look under the hood. Thread size, length, head style, and engine fitment are the same across both.

What's the difference between this kit and the Allen-head version?
This kit uses 6-point (hex) head bolts that accept a standard wrench or socket, while the Allen version uses socket-head bolts requiring a hex key.

What tool do I need to install these bolts?
A standard box, open-end, or socket wrench — these are 6-point head bolts, not Allen/socket-head.

Will the chrome finish hold up to heat near the exhaust headers?
The chrome finish is applied over steel construction; as with any plated header bolt, expect some discoloration from direct heat exposure over time, which is normal and doesn't affect the bolt's strength.

Can I use this kit to replace stripped or missing header bolts on my classic Mustang or Torino?
Yes, for Ford Windsor, Cleveland, Modified, or FE engines used in Mustang, F-Series, Galaxie, and Torino platforms — the 3/8"-16 thread and 3/4" length match this bolt set.

Do I need to check my header before ordering, even if my engine is listed?
Yes. Engine compatibility confirms your engine uses this bolt pattern, but header flange thickness and required bolt length still vary by header design — verify both against this kit's 3/4" thread length before ordering.