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Doug Thorley Headers

Doug Thorley Headers

Doug Thorley Headers

"Driven by a passion for performance and superior quality, we are committed to developing 100% American-made products that will reliably deliver maximum horsepower and torque."

Products

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1955-57 Chevy Belair Hi-Performance Small Block Headers
1955-57 Chevy Belair Hi-Performance Small Block Headers

Hi-Performance Tri-Y Doug Thorley Headers for 1955-57 Chevy w/ small block Chevy engine

$748.00

1955-57 Chevy Belair LS Swap Doug Thorley Headers
1955-57 Chevy Belair LS Swap Doug Thorley Headers

 Hi-Performance Doug Thorley Tri-Y Headers for 1955-57 Chevy w/ LS engine swap

$723.00

1961-66 Chevrolet C &K -Series Trucks / Suburban 396-502 Big Block V8 Motor Swap
1961-66 Chevrolet C &K -Series Trucks / Suburban 396-502 Big Block V8 Motor Swap

1961-66 Chevrolet, GMC Truck 396-502 Big Block Chevy Swap Tri-Y Headers

$727.00

1961-66 Chevy C10 Long Tube Hi-Performance Headers
1961-66 Chevy C10 Long Tube Hi-Performance Headers

Hi-Performance Long Tube Doug Thorley Headers for 1961-66 Chevy C10 Trucks.

$750.00

1961-66 Chevy C10 LS Conversion Headers
1961-66 Chevy C10 LS Conversion Headers

Hi-Performance LS Conversion Doug Thorley Headers for 1961-66 Chevy C10 Trucks.

$703.00

1962-67 Chevy II, Nova LS Swap Tri-Y Headers
1962-67 Chevy II, Nova LS Swap Tri-Y Headers

Hi-Performance Doug Thorley Headers for 1962-67 Nova Mustang II front clip and LS swap.

$666.00

1964-67 Chevy Chevelle LS Swap Mid Length Headers
1964-67 Chevy Chevelle LS Swap Mid Length Headers

Hi-Performance mid length 4 into 1 Doug Thorley Headers for 19564-67 Chevelle with LS swap.

$598.00

1967-1972 Chevrolet, GMC Truck 396-502 BBC Swap Tri-Y Headers
1967-1972 Chevrolet, GMC Truck 396-502 BBC Swap Tri-Y Headers

1967-72 Chevrolet, GMC Truck 396-502 Big Block Chevy Swap Tri-Y Headers

$759.00

1967-69 Camaro / Z28 Hi-Perfromance Headers. 265-400 SBC
1967-69 Camaro / Z28 Hi-Perfromance Headers. 265-400 SBC

Hi-Performance Long Tube Tri-Y Doug Thorley Headers for 1967-69 Camaro  265-400 Small Block only

$756.00

1967-69 Chevy Camaro, 1968-74 Nova LS Swap Long Tube Headers
1967-69 Chevy Camaro, 1968-74 Nova LS Swap Long Tube Headers

Hi-Performance long tube 4 into 1 Doug Thorley Headers for 1967-69 Camaro or 1968-74 Nova with LS swap.

$673.00

1967-87 Chevy C10 LS Conversion Headers
1967-87 Chevy C10 LS Conversion Headers

Hi-Performance LS Conversion Doug Thorley Headers Available for 1967-87 Chevy C10 Trucks.

$703.00

1968-74 Chevy Chevelle LS Swap Mid Length Headers
1968-74 Chevy Chevelle LS Swap Mid Length Headers

Hi-Performance mid length 4 into 1 Doug Thorley Headers for 1968-74 Chevelle with LS swap.

$598.00

Chevelle, Camaro, Nova Hi-Performance Big Block Headers
Chevelle, Camaro, Nova Hi-Performance Big Block Headers

Hi-Performance Long Tube Doug Thorley Headers for 1968-74 Chevelle, 1967-74 Camaro & 1968-74 Nova.  396-454 Big Block only

$659.00

Chevelle, Camaro, Nova Hi-Performance Small Block Headers
Chevelle, Camaro, Nova Hi-Performance Small Block Headers

Hi-Performance Long Tube Doug Thorley Headers for 1968-78 Chevelle, 1970-74 Camaro & 1968-74 Nova.  265-400 Small Block only

$821.00

Long Tube Headers with Adapters, 1968-74 Charger, Challenger, Coronet, Super Bee, Road Runner, Satellite, GTX
Long Tube Headers with Adapters, 1968-74 Charger, Challenger, Coronet, Super Bee, Road Runner, Satellite, GTX

High Performance Doug Thorley headers fit 1968-74 Charger, Challenger, Coronet, Super Bee, Road Runner, Satellite, GTX with 361-440 big block.

$695.00

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