Scott Drake Tri-Y Header Stainless Steel Pair Mustang 289/ 302 1965-1968
Highlights
- Tap To View 3D Model
- Fits 289/302 Engines
- Tri Y Design
- All Mounting Hardware Included
Pair of Scott Drake Stainless Steel Tri-Y Headers for 1965-1968 Mustangs with a 289 or 302 Engine.


Looking for the right mod to use on your 1965-1968 Mustang with a 289 or 302 engine? The Scott Drake C5ZZ-9430-SS Stainless Steel Tri-Y Headers pair will fit your Mustang’s model with durable stainless steel construction. Improve the performance and appearance under the hood of your classic Mustang with CNC machined and mandrel-bent 16-gauge tubes. Meticulously installed, prepare to inherit optimized exhaust flow through the headers and the rest of your exhaust system!
Features and Benefits:
- Mandrel-Bent Tubing
- Optimized Exhaust Flow
- 2-1/2 to 2" Collector/Reducer Cones
- Improves 289 or 302 Engine Performance
This high-quality pair of Scott Drake stainless steel Tri-Y aftermarket headers comes with 2 and 1/2 to 2-inch collector/reducer cones plus all necessary gaskets and mounting hardware. They are sold as a pair for the driver and passenger side and fit both automatic and manual transmissions. This pair of headers mimics the traditional Tri-Y design in appearance and style with subtle changes to enhance its ability to fit and to improve performance. All headers include 1 and 1/2-inch primaries, 1 and 3/4-inch secondarys, and 2 and 1/2-inch collectors. Fits all 1965-1968 Mustangs with a 289 or 302 engine.
Included:
- 2-1/2 to 2-inch collector/reducer cones
- All necessary gaskets
- All mounting hardware
Additional Notes:
- 1965-1968 Mustangs equipped with power steering require a slave cylinder lowering bracket (SCB).
- Vehicles with Larger Bell Housings may need to slightly dimple the header pipe or remove material on the Bell Housing for Header Clearance.
- Vehicles with a 164-Tooth Bell Housings may need to slightly dimple the header pipe or remove material on the Bell Housing for Header Clearance.
Tech Tips:
- Installation of these direct-fit replacements requires removing your previous headers and replacing them with your new pair of Scott Drake Tri-Y headers.
- 1964-1965 V8 mounts hold the engine approximately 1/4 inches lower that the mounts for 1966 Mustangs and up. You may have to shim your engine up (especially if the mounts are older and collapsed) in order to gain more shock tower clearance. It’s very unlikely that you would have to do this, but it can be done with some washers.
California Residents: Proposition 65 Warning
Related Categories: Mustang Parts, Mustang Exhaust, Mustang Headers, Mustang Tri-Y Headers, Restomod Parts
Installation Difficulty

Intermediate skill is required for this installation.
Installation Videos
Video Transcript
Scott Drake: Thanks, Bill. These are '65-'68 stainless steel modified Tri-Y headers. They fit all small blocks. I'm super proud of this part, because we've had the car up and down on stands multiple times, adjusting, tweaking, this, that, the other thing. It will work on cars with small bell housings, big bell housings, the T5 conversions, manual transmission cars, power steering cars. So it's a tight fit on some of those combinations, but we tried to produce a product that would fit all applications, and really that's the trick. This example is a 304 stainless, which will never rust. But we also sell them in black high-temp paint, and soon to be ceramic-coated headers, but they're not quite available yet, but they're coming soon. The features and benefits of this is a really thick flange, stainless steel construction, a good flow with proper clearances as I talked about before. Also includes and exhaust manifold gasket, American standard threads on the bolts, the flange, a reducer cone, and the bolts. You just got to bring it to your muffler shop, hook up your exhaust, and you're ready to go.