Doug Thorley THY-322Y-C GM C10 Pickup, Suburban 1961-1966 LS
Doug Thorley Headers THY-322Y-C
Long Tube Tri-Y Headers with Adapters
1961-1966 Chevrolet C10 Truck / Suburban
4.8L-6.2L LS Motor Swap
Application Specifics:Â Manual transmission requires cable or hydraulic clutch linkage | Coil spring front suspension only
Header Style:Â 4:2:1 Long-Tube Tri-Y Headers
Material:Â Steel
Finish:Â Silver Ceramic Coated
Weld Up:Â Yes, adapters must be welded to exhaust system
Primary Tube Diameter:Â 1-3/4"
Primary Tube Gauge:Â 14 Gauge
Collector Attachment:Â 3 Bolt Flange
Collector Diameter:Â 3"
Tuned:Â No
Flange Thickness:Â 3/8"
Bolts and/or Studs Included:Â Yes
Gaskets Included:Â Yes
Adapters/Reducers Included:Â Yes
Y-Pipe (Crossover) Included:Â No
Motor Mounts Included:Â No, contact us if you need recommendations
Quantity:Â Sold as a Pair
CARB E.O. #:Â N/A
Warranty:Â Limited Lifetime to original purchaser
Notes: 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 LS motor! Backed by over 50 years of knowledge and experience, our 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 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 steel tubing with 3/8" thick flanges. Topping all of that off, our headers come beautifully ceramic coated to greatly reduce under-hood temperatures and protect the headers from the environment. All 100% American made, and backed by our lifetime warranty. Install these long tube headers today and feel your vehicle's true power potential!
MADE IN THE USAÂ
Doug Thorley Headers THY-322Y-C are designed to outflow your stock exhaust manifolds. These headers increase gas mileage and give your engine more horsepower across the entire RPM range.
 Their design configuration builds the most power across the rpm range, which is great for everything from street/strip performance, to towing, to steep grades. To make these headers last, Thorley made them out of durable 14-gauge mild steel with 3/8 in. thick flanges and 5/16 in. collector rings and topped them off with a good looking, nickel chrome plated finish. To prevent leaks, these headers have an O-ring welded into the flange, in addition to the high-temperature gasket provided.
Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc.
If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.
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Brand: Doug Thorley Headers
Manufacturer's Part Number: THY-322Y-C
Header Style:Â 4:2:1 Tri-YÂ Headers
Material:Â Steel
Finish: Silver Ceramic Coated
Weld Up: No
Primary Tube Diameter: 1-3/4"
Primary Tube Gauge: 14 Gauge
Collector Attachment:Â 3-Bolt Flange
Collector Diameter:Â 2-1/2"
Tuned:Â No
Flange Thickness: 3/8"
Hardware Included: Yes
Gaskets Included:Â Yes
Reducers Included: Yes
Y-Pipe (Crossover) Included:Â No
Catalytic Converter(s) Included: No
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WARRANTY:
Doug Thorley Headers carry a lifetime warranty against defects in material and workmanship to the original purchaser. Chrome plated items carry no warranty for finish, other than to be free from defects at the time of purchase, prior to installation. This warranty does not cover damage caused by misuse, abuse, collisions, improper installation, alterations, off-road use, racing use, commercial use, "burn-out" or cracking caused by excessive heat, superchargers, or external heat insulating wrap. Rust or corrosion that occurs after the product is installed is also not covered.
| year make model | 1961-1966 GM C10 Pickup, Suburban |
|---|---|
| Manufacturer | DOUG THORLEY HEADERS |
