Long Tube Tri-Y Headers with Adapters
1967-72 Chevrolet C & K-Series Trucks / Suburban
396-502 Big Block V8 Motor Swap
2wd / 4wd
Part# THY-373Y-C

Application Specifics: Fits with straight or angle plug heads | Will not seal properly on D-port cylinder heads, Automatic Transmission only, will not fit with Z-Bar.

Header Style: 4:2:1 Long Tube Tri-Y Headers
Material: Steel
Finish: Silver Ceramic Coated
Primary Tube Diameter: 1-7/8"
Primary Tube Gauge: 14 Gauge
Collector Attachment: 3-bolt Flange
Collector Diameter: 3"
Tuned: No
Flange Thickness: 3/8"
Bolts and/or Studs Included: Yes
Gaskets Included: Yes
Adapters/Reducers Included: Yes
Y-Pipe (Crossover) Included: No
Weld Up: Yes, adapters must be welded to exhaust system
Quantity: Sold as a Pair
CARB E.O. #: N/A
Warranty: Limited Lifetime to original purchaser

What better way to enhance your vehicle than a beautiful set of long tube tri-y headers that will ensure you're getting the most power possible out of your big block monster! Backed by over 50 years of knowledge and experience, our headers are designed to outflow your stock exhaust manifolds by leaps and bounds. Tri-Y (or 4 into 2 into 1) style headers by design will increase the power of your motor across the widest RPM band possible. That is the beauty of the design, and that is why they are the best street header available. To make these headers last, we built them using industry leading 14-gauge mild steel tubing with 3/8" thick flanges. Topping all of that off, all of our headers come beautifully ceramic coated to greatly reduce under-hood temperatures and protect them from the environment. All 100% American made, and backed by our lifetime warranty of course!