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![Long Tube Header for 1968-1991 GM C/K Truck & Suburban Big Block Chevy [Silver Ceramic Coated]](https://www.jegs.com/images/mini_750/700/776/776-d303y.jpg)
Vehicle Info NeededDOUG'S HEADERSPART NUMBER: 776-D303Y
Long Tube Header for 1968-1991 GM C/K Truck & Suburban Big Block Chevy [Silver Ceramic Coated]
$85208$946.75You Save$94.67
Ships on 09/15/2026
Lowest Price GuaranteeChevy 396-502
Long Tube Header1968-1991 GM C/K Truck & Suburban Big Block Chevy 396-454 Big Block Chevy V8 1.75 in. Primary Tubes with 2.5 in. Collector 16-gauge Steel Construction Gaskets Included Silver Ceramic Coated Finish
This long tube header is engineered to reduce backpressure and improve exhaust flow for truck owners, delivering measurable gains over a factory exhaust manifold.
Header Specifications:
- 1968-1991 GM C/K Truck & Suburban Big Block Chevy
- 396-454 Big Block Chevy V8
- 1.75 in. Primary Tubes with 2.5 in. Collector
- 16-gauge Steel Construction
- Gaskets Included
- Silver Ceramic Coated Finish
Part TypeHeader
BrandDOUG'S HEADERS
Package Height12.0
Package Width20.0
Package Length40.0
Weight34.0 PG
Part CategoryPerformance Parts
Body TypeVarious - Application Specific
PositionN/A
Header FinishSilver ceramic coated
Cylinder Head Port ShapeSAP
Header MaterialSteel
Gaskets IncludedYes
Brake SystemPower
Collector Diameter2.5 in.
Part FitmentSemi Universal
Primary Tube Outside Diameter1.75 in.
Primary Tube Gauge16-gauge
Header StyleFull-length
Vendor Part NumberD303Y
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
