Specializing in:
55 Chevrolet - 56 Chevrolet - 57 Chevrolet - Custom Headers - Rack & Pinion Steering

Tri 5 Big Block Headers, Small Block Headers, Rack and Pinions

Welcome to Tri-5 R&D Inc!
Specializing in Custom Full Length Headers and Rack & Pinion Steering for 55 - 57 Chevys. Rack & Pinions for 67-69 Camaros, 28 - 34 Fords, 35 - 40 Fords, Vega Box replacements.

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Custom Headers for BB & SB Chevy in Tri5's that fit!!

Tri-5 R&D is now offering Custom full length Headers for your 55, 56 and 57 Chevy. We have headers for the Stock steering, 605 Power Steering Conversion, Unisteer Rack & Pinion bolt on kits, and the newer power steering boxes introduced recently.

Big Block, (502 and down), are made with 3/8 inch flanges, 14 gauge 2 inch primary tubes, (thicker than industry standard) and 3 inch Ball Style gasketless collectors.

Small block headers are offered with 3/8 inch flanges, 1-5/8 or 1-3/4 14 gauge primary tubes and 3 inch ball style collectors. All our headers are full length, mandrel bent with some welds on tight turns. To keep our costs down we ship them bare not coated as we feel there enough Coating Companies you can deal with locally. We can have them coated if you can not, call for prices.

Tri-5 R&D guarantees headers to fit using the "Total Cost Involved Side Motor Mounts Conversion Kit". We recommend this kit as we have found it to be one of the easiest to install. As their kit moves the engine 3/4 inch forward you do not have to worry about firewall clearance, running tall valve covers or installing a bigger HEI distributor. Our headers were setup using the "Total Cost Involved Side Transmission Mount Kit" which we also recommend. As our headers do not hang below the bottom of your frame, you will need to cut off your stock bellhousing mounting ears for clearance of the exhaust system.

At this time we make headers upon order, lead time is approximately 2 to 3 weeks. Call 866-839-8745 for questions.

    Why use Tri-5 R&D Headers?
  • 100% American Made
  • Hand Welded - Mandrel Bent
  • 3/8" thick Lazer Cut flanges
  • 14 gauge primary tubes (thicker than industry standards)
  • Firewall cutting eliminated
  • Ball style collectors (eliminating collector gaskets)
  • Less than half the cost of Custom made sets (and they are custom made)
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