Doug Thorley Headers '61-'66 ('87-'91) Chevy/GM Truck LS Swap Long Tube Tri-Y Headers - 4.8L/6.2L

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 engine! 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 is why they are the best street headers 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!

Features:

• Header Style: 4:2:1 Long-Tube Tri-Y Headers
  
• Material: Steel
  
• Finish: Silver Ceramic Coated
  
• Weld Up: Yes, adapters must be welded to the exhaust system
  
• Primary Tube Diameter: 1-3/4"
  
• 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 if you need recommendations
  
• Quantity: Sold as a Pair
  
• CARB E.O. #: N/A
  
• Warranty: Limited Lifetime to original purchaser
  
  

Application Specifics: Manual transmission requires cable or hydraulic clutch linkage | Coil Spring front suspension only, will not fit Heavy Duty, Big 10 Chassis, or Heavy Half.