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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
4.0 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 4
PRICEY and sometimes don’t stay in place!
These have a wonderful mild flavor, no mint burn, moisten your mouth for several hours, and generally always stay put, in fact if you want it out before fully dissolved, it takes a little effort with your fingernail, because they are supposed to stick and stay in place! ALSO, I DO NOT PUT ON MY GUMLINE LIKE THE INSTRUCTIONS SAY, I STICK ON THE ROOF OF MY MOUTH FOR DISCREET CONFORT!!
I really do recommend for DRY MOUTH!! I DO NOT CARE FOR THE SHARP EDGY METAL INDIVIDUAL PACKAGING AT ALL, but the bottle is very pricey!!
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Reviewed in the United States on March 30, 2023
★★★★★ 5
Absolutely work!
These are absolutely fantastic. Bygone are the days of sucking on some sugary sweet Candy. Xylo melts stick as they say they do. I have found that they don't stick to artificial teeth as well. They last for hours they're comfortable. The mint ones aren't overpowering. These are a dry mouth blessing. For sure use them at night and during the day.
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Reviewed in the United States on May 16, 2025
★★★★★ 5
Invaluable sleep/ dry mouth aid
Cannot live even one night without these Xylimelts. Taste great. Stick well to mouth. Remember: poisonous to dogs. Now we have a dog so I no longer buy the bottles of loose melts as I can spill in middle of night and lose track. Extremely nerve wracking. Using the sheets of melts which you punch out one at a time. Easier to insure dog’s safety.
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Reviewed in the United States on June 25, 2025
★★★★★ 5
They may have saved my life!
These are fantastic for people with dry mouth! They have been a lifesaver for me. I HIGHLY recommend them to everyone! I carry them in my bag as well. Thanks to the one who invented them. I feel normal again!!! Easy to pop in mouth and they last overnight too.
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Reviewed in the United States on April 24, 2025
★★★★★ 5
Wow!!!
Size: 80 ea
XyliMelts were recommended by my new dental hygienist who said she was told about them at a dental conference by a well known hygienist "guru".
I ordered them at around four in the morning because I was up as usual because if my chronic pain syndrome and the dry mouth caused by my pain pills.
I got them quickly via Amazon and have not been up again this time of night due to the dry mouth. Now I'm up due to the pain but can fall asleep quickly because of the XyliMelts, they work great!
I only use one at a time and it lasts around four hours and I put in another one and go right back to sleep. It's so easy to push the little tab out of the cellophane and just hold it on my gum for ten seconds and voila! No more dry mouth. I used to wake up with my mouth so dry there was no saliva at all in my mouth and parched was an understatement, my mouth felt like sandpaper!
Now it's always nice and moist and the taste is extremely pleasant (I didn't get the mint). I had to have two teeth extracted four days before Christmas and my dentist said it was due to the dry mouth and that he sees patterns like this in patients with dry mouth and I'd probably lose more teeth unless I came in for cleanings and check ups three times a year instead of two and we kept a really close eye on my teeth.
I'd been using Biotene gel but it wasn't keeping my mouth moist long enough. I'm extremely happy with XyliMelt! I'm also 100% sure I won't be losing any more teeth due to my night time dry mouth because it's a thing of the past!
Thanks to amazon prime shipping I got my XyliMelts very quickly, and my nighttime dry mouth is a thing of the past!
I know they don't claim to stop cavities but without the dry mouth and my new commitment to see my dentist three times a year and to always always brush my teeth before I fall asleep (no more Rolos in bed after I've done my final teeth brushing), I'm confident my dentist won't see a tooth loss pattern in my mouth.
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Reviewed in the United States on February 14, 2014