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The right flange for your LSX headers
Make your custom headers around the cylinder heads you are actually using. This Kooks flange is made for LSX, with 3/8-inch-thick 304 stainless steel and 1-7/8-inch primary-tube ports.
SKU: 7046-BS
Match your cylinder heads
The stock bolt pattern lets your fabricator match the flange to the head before laying out the primary tubes. The d-shaped port shape matters as well as the tube size when choosing between similar-looking flanges.
Made for custom header fabrication
The 3/8-inch flange provides the head-side mounting piece for your fabricated header. It is supplied individually, so you can replace one side or choose the matching flanges for both banks. Your fabricator can then position the tubes around your engine bay and the rest of your exhaust.
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| SKU | 7046-BS |
| Engine / cylinder-head application | LSX |
| Material | 304 stainless steel |
| Flange thickness | 3/8-inch |
| Bolt pattern | Stock |
| Primary tube size | 1-7/8-inch |
| Port shape | D-shaped |
| Supplied quantity | One flange |
Frequently asked questions
Is this supplied as a pair?
It is one flange. For headers on both cylinder banks, choose the appropriate flange for each side.
What should my fabricator match?
Match the cylinder-head bolt pattern, d-shaped port shape and 1-7/8-inch primary-tube size. The engine / head application and flange thickness are listed in the specifications below.
