Automotive exhaust fasteners built to secure aftermarket headers with corrosion-resistant stainless-steel hardware, Z Whip Exhaust Header Bolt Kit. Peace of mind for restorers and DIY mechanics who do not want bolts that corrode under heat and road salt. Will these fasteners match the fit and durability required for classic small-block Chevy builds?
⚡ At a Glance
- • Material Quality: High-grade 18-8 stainless-steel 3/8-16 x 1 inch bolts with matching washers, resistant to rust and corrosion
- • Best for: Enthusiasts and mechanics restoring or upgrading Chevy and GM small-block V8 engines
- • Not ideal for: OEM cast manifolds, as these bolts are intended for aftermarket header flanges only
3/8-16 x 1 inch stainless-steel bolts and washers designed for header flanges up to 1/2 inch thick. Manufactured under aerospace-quality certifications for consistent production standards.
Long-lasting corrosion resistance, with 18-8 stainless-steel fasteners
18-8 stainless-steel is an austenitic alloy with sufficient chromium and nickel content to resist oxidation and surface rust in high-temperature, corrosive exhaust environments. Bolts and washers are supplied in matched sets sized 3/8-16 x 1 inch for standard header use.
Reduced risk of seized or rusted fasteners over time, making future disassembly easier and lowering maintenance headaches.
Wide header compatibility, with fitment for many small-block V8s
Compatible listing covers 1955 through 1998/99 Chevrolet Small Block engines including 265, 283, 305, 307, 327, 350, 383 and 400, plus Pontiac, Buick and Oldsmobile V8s and later Vortec 5.0L and 5.7L BOP headers, for flanges up to 1/2 inch thick.
Suitable for a broad range of restoration and swap projects where aftermarket headers are used, reducing the need to hunt for specialised fasteners.
Consistent quality control, with AS9100D and ISO 9001:2015 manufacturing
Manufacturer holds AS9100D and ISO 9001:2015 certifications and produces aerospace parts for Boeing and military customers, indicating documented processes and traceability in production.
Expect reliable batch-to-batch consistency and parts that meet higher production standards than generic fasteners, lowering the chance of rejects or premature failures.
✨ The 4 Key Reasons for Z Whip Exhaust Header Bolt Kit
- 18-8 stainless-steel bolts - Resist corrosion and avoid seized fasteners for longer service life
- Fits up to 1/2-inch flanges - Accommodates common aftermarket header flange thicknesses precisely
- Includes washers and Allen head bolts - Provides a secure clamp and simple installation using a 5/16-inch Allen key
- Aerospace-grade manufacturing - Quality assurance reduces variation and improves long-term reliability
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Brand: Z Whip
- Material: 18-8 stainless steel
- Bolt size: 3/8-16 x 1 inch
- Thread: 3/8-16 UNC
❓ Frequently Asked Questions
Q: Will these bolts fit original equipment manifolds?
A: No, the listing states they do not fit OEM manifolds and are intended for aftermarket headers with up to 1/2 inch flange thickness.
Q: Are the bolts resistant to rust and corrosion?
A: Yes, bolts and washers are made from high-grade 18-8 stainless steel, described as not prone to rust or corrosion like chrome or plain steel fasteners.
Q: What size hardware and tool are needed for installation?
A: Hardware is 3/8-16 x 1 inch bolts with washers, and installation requires a 5/16-inch Allen wrench or socket.
🏆 Our Verdict
Ideal for enthusiasts and mechanics restoring or upgrading small-block Chevy and other GM V8s using aftermarket headers. Aerospace-grade manufacture and 18-8 stainless-steel fasteners deliver durable, corrosion-resistant fastening and consistent fit. While upfront cost may be slightly higher than basic fasteners, long service life and reduced rework make the choice good value over time.
