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Description
Flowtech Long Tube Header for 1966-1974 Dodge/Plymouth Silver Ceramic Coated 33100FLTOverview: FLOWTECH headers are precision engineered and leak tested to get maximum performance from your engine. Each header is formed from specially selected . 049 cold roll flash controlled tubing, and features FLOWTECH's exclusive, thick, mandrel formed Power Plenum collector. All ports are precisely fitted and finished with sturdy, leak proof O ringed port seals, and all FLOWTECH headers include all mounting hardware including bolts, nuts and
Overview:
FLOWTECH headers are precision engineered and leak tested to get maximum performance from your engine. Each header is formed from specially selected .049 cold roll flash controlled tubing, and features FLOWTECH's exclusive, thick, mandrel-formed Power Plenum collector. All ports are precisely fitted and finished with sturdy, leak-proof O-ringed port seals, and all FLOWTECH headers include all mounting hardware including bolts, nuts and premium gaskets. FLOWTECH headers are available with either a high-quality satin black paint finish or with a specially formulated, NASA-developed silver luster ceramic coating for rust and corrosion resistance.
Features:
- Improved Exhaust Scavenging for Increased Performance
- Leak Test For Max Performance
- Ceramic Headers
- Rust And Corrosion Resistance
- Mandrel-Formed Power Plenum
- Include All Mounting Hardware
- Leakproof O-Ringed Port Seals
Fitment Notes:
- Will not fit with A.I.R. injection pump.
- It may be necessary to raise the automotive column cross shaft linkage by rotating the mounting brackets on the frame and transmission 180º
- Will not fit vehicles with power steering.
- Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage.
- The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
Applications:
| Year | Make | Model | Engine | Notes |
| 1970-1974 | Dodge | Challenger | 5.2L V8 318 CID | See Fitment Notes Above |
| 1970-1973 | Dodge | Challenger | 5.6L V8 340 CID | See Fitment Notes Above |
| 1974 | Dodge | Challenger | 5.9L V8 360 CID | See Fitment Notes Above |
| 1966-1974 | Dodge | Charger | 5.2L V8 318 CID | See Fitment Notes Above |
| 1971-1973 | Dodge | Charger | 5.6L V8 340 CID | See Fitment Notes Above |
| 1974 | Dodge | Charger | 5.9L V8 360 CID | See Fitment Notes Above |
| 1967-1968 | Dodge | Coronet | 4.5L V8 273 CID | See Fitment Notes Above |
| 1967-1974 | Dodge | Coronet | 5.2L V8 318 CID | See Fitment Notes Above |
| 1972-1973 | Dodge | Coronet | 5.6L V8 340 CID | See Fitment Notes Above |
| 1973-1974 | Dodge | Coronet | 5.9L V8 360 CID | See Fitment Notes Above |
| 1967-1969 | Dodge | Dart | 4.5L V8 273 CID | See Fitment Notes Above |
| 1968-1974 | Dodge | Dart | 5.2L V8 318 CID | See Fitment Notes Above |
| 1968-1973 | Dodge | Dart | 5.6L V8 340 CID | See Fitment Notes Above |
| 1974 | Dodge | Dart | 5.9L V8 360 CID | See Fitment Notes Above |
| 1967 | Plymouth | Barracuda | 4.5L V8 273 CID | See Fitment Notes Above |
| 1968-1974 | Plymouth | Barracuda | 5.2L V8 318 CID | See Fitment Notes Above |
| 1968-1969 | Plymouth | Barracuda | 5.6L V8 340 CID | See Fitment Notes Above |
| 1972-1973 | Plymouth | Barracuda | 5.6L V8 340 CID | See Fitment Notes Above |
| 1974 | Plymouth | Barracuda | 5.9L V8 360 CID | See Fitment Notes Above |
| 1967-1968 | Plymouth | Belvedere | 4.5L V8 273 CID | See Fitment Notes Above |
| 1967-1970 | Plymouth | Belvedere | 5.2L V8 318 CID | See Fitment Notes Above |
| 1967 | Plymouth | Belvedere II | 4.5L V8 273 CID | See Fitment Notes Above |
| 1967 | Plymouth | Belvedere II | 5.2L V8 318 CID | See Fitment Notes Above |
| 1973-1974 | Plymouth | Cuda | 5.2L V8 318 CID | See Fitment Notes Above |
| 1970-1973 | Plymouth | Cuda | 5.6L V8 340 CID | See Fitment Notes Above |
| 1974 | Plymouth | Cuda | 5.9L V8 360 CID | See Fitment Notes Above |
| 1970-1974 | Plymouth | Duster | 5.2L V8 318 CID | See Fitment Notes Above |
| 1970-1973 | Plymouth | Duster | 5.6L V8 340 CID | See Fitment Notes Above |
| 1974 | Plymouth | Duster | 5.9L V8 360 CID | See Fitment Notes Above |
| 1968 | Plymouth | GTX | 5.2L V8 318 CID | See Fitment Notes Above |
| 1971-1973 | Plymouth | Road Runner | 5.6L V8 340 CID | See Fitment Notes Above |
| 1974 | Plymouth | Road Runner | 5.9L V8 360 CID | See Fitment Notes Above |
| 1967-1968 | Plymouth | Satellite | 4.5L V8 273 CID | See Fitment Notes Above |
| 1967-1974 | Plymouth | Satellite | 5.2L V8 318 CID | See Fitment Notes Above |
| 1972 | Plymouth | Satellite | 5.6L V8 340 CID | See Fitment Notes Above |
| 1974 | Plymouth | Satellite | 5.9L V8 360 CID | See Fitment Notes Above |
| 1967-1969 | Plymouth | Valiant | 4.5L V8 273 CID | See Fitment Notes Above |
| 1968-1969 | Plymouth | Valiant | 5.2L V8 318 CID | See Fitment Notes Above |
Specs:
| Brand | Flowtech |
|---|---|
| Collector Diameter | 3.00 inch |
| Bolt Size | 5/16-18 x 3/4 |
| Emission Code | 4 |
| Engine | Chrysler Small Block LA |
| Header Finish | Silver Ceramic |
| Header Style | Long Tube |
| Primary Tube Dia. | 1-5/8 inch |
| Product Type | Headers |
| Tube Material | Mild Steel |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 3
Not great at cooling
Size: Queen (2 Count), Color: Original White (Cooling)
Each pillow cover has 2 sides, one marked for cooling, and the other a different fabric. The cooling side is about the same effectiveness as having a silk or satin pillow cover. It's only cool when you first touch it. The cooling side doesn't seem to absorb or wick moisture, so if you are sweaty - it keeps the moisture in place. You'll definitely want a regular pillow case over the pillow cover. In fact, if you suffer from night sweats, the non-cooling side is actually more comfortable. The pillow fill is ample, and simple to squish around for more support for your neck, etc. Think bean bag. But it will retain your impression after use. I find I need to do as I did when I had down pillows - give it a few good shakes in the morning when I make the bed to get it evened out for the coming night. In all, it is a well-made and comfortable pillow to sleep on, but it does not excel in cooling.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
excellent pillows i bought two sets!!
Size: Firm Queen (2 Count), Color: Original White (Cooling)
I ordered these for my son who has neck issues and has gone through so many pillows trying to find one that he liked. They’re heavy, so i was worried that they might be “too” heavy to be able to sleep on comfortably, so I ordered a second set, one firmer than the other (just in case) and gave him a set for Xmas and he loved the first set so much without even trying the less firm ones.He also needs the cooling factor and these offered that, too. They are filled with pieces of memory foam (tons of it) and each pillow can be modified by removing some of the foam. The covers are beautiful, high quality fabric with a zipper so ts easy to remove or replace the foam pieces. The size is perfect and they keep their shape. I kept the second set i ordered rather than returning them and i love the pillows. I actually modified two by removing some of the foam pieces. I kept the foam pieces in a zippered pillow protector and i can always adjust mine when or if i need to.
1000% love these.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
The Perfect Firm Pillow l
Size: Queen (1 Count), Color: Original White (Cooling)
It is everything it claims to be, cool, comfortable and strong. I got this for my husband first, he loves it and then got one for my son, he uses it to support his knees and has been sleeping much better since then.
They both needed a firm pillow that is not super soft, firm but not achy.
Finally found the perfect one.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Soft,comfortable and great quality!
Size: 26 x 26 inches, Style: 2 Pack
I’m very happy with these pillows! They are soft, comfortable, and provide great support without being too firm or too flat. I also appreciate that they’re hypoallergenic, which is a huge plus. They fluffed up nicely and have held their shape well after use. Great quality for the price and they made a noticeable difference in comfort. Definitely recommend!
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Perfect!
Size: 18 x 18 inches, Style: 2 Pack
Good weight and thickness. Perfect for the pillow shams I also purchased.
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Reviewed in the United States on May 18, 2026