1968-78 Chevelle / El Camino, 1968-74 Nova, 1970-74 Camaro Doug Thorley- SBC

1968-78 Chevelle / El Camino, 1968-74 Nova, 1970-74 Camaro Doug Thorley- SBCLong Tube Tri Y Doug Thorley Headers, 1968 78 Chevelle El Camino, 1968 74 Nova, 1970 74 Camaro, 265 400 Small Block 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! 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

Long Tube Tri-Y Doug Thorley Headers, 1968-78 Chevelle / El Camino, 1968-74 Nova, 1970-74 Camaro, 265-400 Small Block

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!  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.

Application Specifics: Fits with factory or aftermarket A/C.  Fit with straight or angle plug heads.  Will not seal properly on D-port cylinder heads

Header Style: 4:2:1 Long Tube Tri-Y Headers
Material: Steel
Finish: Silver Ceramic Coated
Primary Tube Diameter: 1-5/8"
Primary Tube Gauge: 14 Gauge
Collector Attachment: 3-bolt Flange
Collector Diameter: 2-1/2"
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