Doug Thorley - 1967-1987 Chevy/GMC Truck - LS Swap Long Tube TRI-Y Headers 4.8L-6.2L

Tri-Y Headers with Adapters
1967-87 Chevrolet C10 Truck / Suburban / K5 Blazer / GMC Jimmy
4.8L-6.2L LS Engine Swap

Application Specifics: Manual transmission requires cable or hydraulic clutch linkage, and will not fit Heavy Duty, Big 10 Chassis, or Heavy Half.

What better way to enhance your vehicle than a beautiful set of long tube Tri-Y headers that ensure you're getting the most power possible out of your LS Engine! Backed by over 50 years of knowledge and experience, Doug Thorley headers are designed to outflow 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 engine across the widest RPM band possible. That is the beauty of the design and is why they are the best street headers available. To make these headers last, they are built using industry-leading 14-gauge steel tubing with 3/8" thick flanges.

Topping all of that off, Doug Thorley headers come beautifully ceramic coated to greatly reduce under-hood temperatures and protect the headers from the environment. All are 100% American-made and backed by a lifetime warranty. Install these long tube headers today and feel your vehicle's true power potential!

Header Style: 4:2:1 Tri-Y Headers
Material: Steel
Finish: Silver Ceramic Coated
Weld Up: Yes, adapters must be welded to exhaust system
Primary Tube Diameter: 1-7/8"
Primary Tube Gauge: 14 Gauge
Collector Attachment: V-Band
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
Motor Mounts Included: No, contact us for recommendations
Quantity: Sold as a Pair
CARB E.O. #: N/A (pre-1976)
Warranty: Limited Lifetime to original purchaser