Ford 300/4.9L Straight 6 Custom Header Build Kit
Ford 300, Ford 4.9L, Header Kit
Pro Series Header Build Kits: Ford 300/4.9L Straight 6
This header build kit has everything you need to bring that Ford 300/4.9L 6-Cylinder custom header together. Designed to fit the straight 6 Ford engines found in a large variety of Ford trucks and other vehicles. This kit is suitable for carbureted or EFI-type cylinder heads. Great for building that set of headers for your Ford 300 powered truck or car.
What makes our header build kits the choice of top fabricators?
- Flanges: 1 American made precision laser cut 3/8" thick header flange to fit the Ford 300/4.9L cylinder head.
- Port Size: 2.00"
- Flange Stubs: Included are (6) preformed flange stubs to help speed up the fabrication process. These stubs are formed to the exact flange port shape, and come in 1 3/4", 1 7/8" or 2" primary tube size.
- Mandrel Bends: We supply (10) 180 degree J bends. Our J bends come with a 6" & a 12" leg. For most header builds, this extra leg length mean you won't need to buy any straight tubing.
- 3 into 1 Collectors or 6-1 Collector: From there we supply one of our weld-on formed collectors, or offer an upgrade to a super high flow 4 into 1 slip on merge collectors with 2 sets of collector tabs. Just like our stainless bends, we start off with an American made 304 stainless and fabricate the industries finest collectors . We offer these header kits with 5 different collector options:
- Weld-On 3-1 Formed Collector (1 3/4" primary & 2 1/2" Secondary Size only)
- 3-1 Slip on merge collectors with a straight exit (Collector tabs included)
- 3-1 Slip on merge collectors with a transitional exit (Collector tabs included)
- 6-1 Slip on merge collector with a straight exit (Collector tabs included)
- 6-1 Slip on merge collector with a transitional exit (Collector tabs included)
- Purge Caps: This simple, but effective method for back purging caps works great. Each kit includes 6 primary caps and one collector cap.
- O2 bungs: Each header builder kit includes 2 weld on O2 bungs. Precision machined in the U.S. from 304 stainless billet, these bungs weld beautifully, not like a cast bung
- Tig Filler Rod: Includes 1/4 lbs. package of filler rod Be sure to check out our Facebook, Instagram, and YouTube channels for continuous updates on customer projects, as well as how-to videos and information about our extensive product lineup.
- Item Requires Shipping
- 45.0 lbs.
- W19.0000” x H13.0000” x L19.0000”
- Free GROUND Shipping
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