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Description
Flowtech Tri-Y Header 1965-1970 Ford 260-289-302 V8 - 12120FLTOverview: Flowtech Headers are the perfect combination of quality and value. These Tri Y style headers fit the popular 1965 1970 Ford 260 289 302 V8 engines. These Tri Y style headers were originally designed for 1965 1966 Shelby GT350 Mustangs with a 289HiPo V8, 4 speed manual transmission, and manual steering. Over the years, Ford enthusiasts have used these headers in dozens of other vehicles to get that classic Shelby sound and performance. See
Overview:
Flowtech Headers are the perfect combination of quality and value. These Tri-Y style headers fit the popular 1965-1970 Ford 260/289/302 V8 engines. These Tri-Y style headers were originally designed for 1965-1966 Shelby GT350 Mustangs with a 289HiPo V8, 4-speed manual transmission, and manual steering.
Over the years, Ford enthusiasts have used these headers in dozens of other vehicles to get that classic Shelby sound and performance.
See Installation Notes for additional information regarding fitment details regarding these headers.
Features:
- Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
- Heavy duty 16-gauge tubing for increased strength and durability
- 1-1/2” diameter primary tubes, 1-3/4” diameter secondary tubes for increased exhaust flow increasing performance and improving throttle response
- 2-1/2” collector for maximum strength and exhaust flow
- 3/8” thick header flange for a leak-free seal and maximum strength
- Premium aluminum header gaskets included
- Available in a high heat resistant black paint or polished finish
Fitment Notes:
- Attempt to install in any other application WILL require some modification
- These headers will not fit vehicles utilizing an FMX, C-6, or AOD automatic transmission
- May not fit some vehicles utilizing a C-4 transmission with 164-tooth bellhousing.
- Those using a 157-tooth bellhousing with require some clearancing on RH side of bell
- Will NOT work on 351W motors. (Due to taller and wider engine dimensions)
- Will not work with GT40-P cylinder heads
- Headers will work with 10" or 10.5" clutch, use of a 1968-newer bellhousing will require clearance on LH side of bellhousing
- 1969-1970 model vehicles may require additional clearance for steering box
- Use of these headers on a non-HiPo model will require extra clearance for clutch linkage
Applications:
| Year | Make | Model | Engine | Fitment Notes |
| 1966-1968 | Ford | Bronco | 4.7L V8 289 CID | C4 Transmission Please See Above! |
| 1968-1970 | Ford | Bronco | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1965 | Ford | Custom | 4.3L V8 260 CID | T-10H, T-10M, T-10J, T-10L, C4 Transmissions Please Seee Above! |
| 1965 | Ford | Custom | 4.7L V8 289 CID | T-10H, T-10M, T-10J, T-10L, C4 Transmissions Please See Above! |
| 1966 | Ford | Custom | 4.7L V8 289 CID | T-10Q and C4 Transmissions Please See Above! |
| 1967 | Ford | Custom | 4.7L V8 289 CID | C4 Transmission Please See Above! |
| 1968-1970 | Ford | Custom | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1969-1970 | Ford | E-100 Econoline | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1969-1970 | Ford | F-100 | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1969-1970 | Ford | F-250 | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1965 | Ford | Fairlane | 4.7L V8 289 CID | T-10H, T-10M, T-10J, T-10L, C4 Transmissions Please See Above! |
| 1966-1967 | Ford | Fairlane | 4.7L V8 289 CID | C4 Transmission Please See Above! |
| 1968-1969 | Ford | Fairlane | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1965 | Ford | Galaxie | 4.7L V8 289 CID | T-10H, T-10M, T-10J, T-10L, C4 Transmissions Please See Above! |
| 1966-1967 | Ford | Galaxie | 4.7L V8 289 CID | C4 Transmission Please See Above! |
| 1968-1970 | Ford | Galaxie 500 | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1966-1967 | Ford | LTD | 4.7L V8 289 CID | C4 Transmission Please See Above! |
| 1968-1970 | Ford | LTD | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1965 | Ford | Mustang | 4.3L V8 260 CID | T-10H, T-10M, T-10J, T-10L, C4, Toploader Transmissions Please See Above! |
| 1965 | Ford | Mustang | 4.7L V8 289 CID | T-10H, T-10M, T-10J, T-10L, C4, Toploader Transmissions Please See Above! |
| 1966 | Ford | Mustang | 4.7L V8 289 CID | T-10Q, C4, Toploader Transmissions Please See Above! |
| 1967-1968 | Ford | Mustang | 4.7L V8 289 CID | C4 and Toploader Transmissions Please See Above! |
| 1968-1970 | Ford | Mustang | 5.0L V8 302 CID | C4 and Toploader Transmissions Please See Above! |
| 1965-1967 | Ford | Ranchero | 4.7L V8 289 CID | C4 Transmission Please See Above! |
| 1968-1970 | Ford | Ranchero | 5.0L V8 302 CID | C4 Transmission Please See Above! |
| 1968-1970 | Ford | Torino | 5.0L V8 302 CID | C4 Transmission Please See Above! |
Specs:
| Brand | Flowtech |
|---|---|
| Bolt Size | 3/8-16 x 3/4 |
| CARB (California) Compliant | No |
| Collector Diameter | 2.50 inch |
| Header Finish | Polished |
| Header Style | Tri-Y |
| Material | Mild Steel |
| Primary Tube Dia. | 1-1/2 inch |
| Product Type | Headers |
Emissions:
- This part is legal for sale or use on Racing Use Only Vehicles
- The following vehicles are considered Racing Use Only Vehicles:
- Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.
- WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
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 15 reviews
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Product Reviews
★★★★★ 5
Very comfy sheets, nice fabric
Size: Full, Color: Oatmeal
I wasn’t expecting such good quality forthis price. They’re very soft, but of fairly thick fabric. I’m sleeping great on them. The pockets are deep enough for an 8” foam mattress plus my 3” topper. Will be getting another set for the second bedroom.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Great Sheets!
Size: Twin, Color: Oatmeal
Super soft, wash up beautifully, seem well made — very happy! It’s very hard to find 100% cotton t-shirt type sheets and these are really lovely.
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Reviewed in the United States on June 1, 2026
★★★★★ 3
Weirdly textured
Size: King, Color: Dark Gray
I have bought and loved jersey sheets in the past, that have all been as soft as a well worn cotton t-shirt. These arent soft. They have the stretch of jersey, but not the soft smooth texture that they should have. Even after washing a few times these are one of my least favorite sheets I've ever bought on Amazon.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Soft, Breathable Sheets That Feel Great to Sleep On
Size: Twin, Color: White
This Amazon Basics jersey sheet set was a really good purchase. The cotton material is soft, stretchy, and breathable — it feels like sleeping in a comfortable T‑shirt. The fitted sheet has a nice snug fit that stays in place, and the flat sheet is lightweight without feeling flimsy.
The fabric washes well, doesn’t pill, and stays soft after multiple loads. It’s a great everyday sheet set for anyone who likes that cozy, relaxed jersey feel. Overall, comfortable, easy to care for, and great value for the price.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
The Perfect Sheets To Lie On While Writing Amazon Reviews
Size: Full, Color: Light Gray
As I write this, I am laying on an adjustable full sized bed by Hofish and a 10.5" comfort foam mattress by Classic Brands. I know I sound like I am an Amazon plant, but I swear I am not. I'm not even a stockholder anymore.
This is the most awesome bed stylings combination I have had in many, many years. In fact, it is the best I have ever owned and it is beat only by some ritzy resort I stayed at on vacation like 20 years ago, though I admit I was pretty drunk the entire time so my memory might not be the most accurate.
But getting back to today... these sheets are great. I washed them twice - I'm not a neat freak, I am just amazingly disorganized and easily distracted while doing laundry, so tonight they went though two wash cycles and one dry. And then I put them on the bed. While these sheets are not deep pocket sheets, they don't need to be with this mattress. There is enough room and border for them to tuck and wrap with the elastic to give a strong grip under the mattress, which is important as the adjustable frame continually put the sheets and mattress though its repeated adjustable calesthenics-type positioning. The other two sheet sets I have used since I got this bed have struggled poorly with this. In the day or so and at least a dozen position changes, these sheets stay in place with no popped corners to exposing the bowl as the head and feet rise. Of course, till will tell if it lasts, but so far they are the best of the batch of sheets in my closet.
As for texture, they are awesome. I'm a dude. I don't really know what thread count or knit or whatever really means. But these sheets feel like a well-washed favorite, quality rock & roll concert t-shirt. And not one of these glitter puff stupid new groups, like a real rock band from the 80s that now charges $250 for a concert ticket and $60 for a t-shirt...but that group you saw back then, paid $10 for the shirt and you STILL have it and love to wear it because it is perfectly molded to your body, soft and reliable. The kind of shirt you will wear under your suit at work and just grin not just for mental middle finger to corporate dress codes, but because the t-shirt is just that great of a feeling.
Well, that is what these sheets feel like. And now you get to sleep in it. It is that awesome.
In LA right now we are having a nasty heat wave, but these sheets don't seem to bake me even with my stuttering AC. The flannel sheets I love seem to trigger the butt sweats as soon as I lay down in this heat, but no such problem with these.
So really, I'm absolutely happy with these things. I am going to order more in other colors as soon as Amazon gets them back in stock. Great price, great quality, great comfort, great fit, great deal. It is that simple.
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Reviewed in the United States on September 3, 2017