
JEGSPART NUMBER: 555-300155
Stainless Steel Long Tube Headers for 1973-1991 GM Truck with Small Block Chevy 265-400 ci
$40599
More than 10 availableGM Truck
Stainless Steel Long Tube Headers1973-1991 Small Block Chevy 265-400 ci 4WD Truck Round Port Shape 1.625 in. O.D. Primary Tubes 5/16 in. Flange Thickness Includes:
- 3 in. O.D. Collectors w/2.500 in. O.D. Outlet
- Gaskets/Bolts
JEGS 555-300155 Stainless Steel Long Tube Headers Features:
- 18-Gauge 409 Stainless Steel Mandrel Bent Tubing
- 5/16 in. Thick 409 Stainless Steel Exhaust Flanges
- Stainless Steel Mounting Hardware & Gaskets
JEGS 555-300155 Stainless Steel Long Tube Headers Includes:
- (1 Pair) Stainless Steel Long Tube Headers with 1.625 in. Primary Tube
- (1 Pair) Header Exhaust Gaskets
- (12) 3/8 in.-16 x 3/4 in. Stainless Steel Header Bolts
- (1 Pair) Stainless Steel 3 in. O.D. Header Collector to 2.500 in. O.D. Reducer Outlet
- (1 Pair) 3 in. Collector Gaskets
- (6) 3/8 in.-16 x 1 1/4 in. Stainless Steel Collector Bolts, Nuts & Lock Washers
Special Exhaust Headers Notes:
- Due to variations in engine and vehicle configurations, installation of aftermarket headers may require minor modifications
- Common adjustments include power-steering or A/C bracket relocation, dipstick tube modification, or clearance for steering shaft and clutch linkage
- Inspect for worn or collapsed motor mounts, and verify clearance for spark plugs, wires, brake lines, and transmission or fuel lines
- Always test-fit headers before painting or coating to ensure proper alignment and clearance
- Re-torque after initial heat cycles
JEGS 555-300155 Stainless Steel Long Tube Headers Fits:
- 1973-1987 Chevy/GMC Pick-Up 1/2, 3/4, 1-Ton
- 1973-1991 Blazer/Jimmy/Suburban
- 1988-1991 Chevy/GMC 1-Ton Crew Cab
High-Quality Headers
JEGS Stainless Steel headers look great and are made with heavy-duty flanges and mandrel-bent tubing. Every header is designed for maximum performance with the proper primary diameter and length to efficiently remove exhaust from each cylinder, reducing pumping losses and increasing horsepower and torque.
Part TypeHeader
Product LineJEGS Stainless Steel Headers
BrandJEGS
Package Height9.5
Package Width18.5
Package Length34.0
Weight28.0 PG
Part CategoryPerformance Parts
Header Flange Thickness0.313 in (7.95 mm)
Header FinishNatural
QuantitySold as a pair
Cylinder Head Port ShapeRound
Transmission Mount IncludedNo
Header MaterialStainless steel
Gaskets IncludedYes
Weld-UpNo
Collector Attachment3-bolt flange
Flange StyleStandard
TunedNo
Collector Diameter3 in (76.2 mm)
Motor Mounts IncludedNo
Part FitmentSemi Universal
Reducers IncludedYes
Header StyleLong Tube
Cross Over Pipe IncludedNo
Catalytic Converter(S) IncludedNo
Primary Tube Diameter1.625 in (41.3 mm)
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
Some parts are not legal for use in California or other states with similar laws / regulations
![Penetrating Oil [11 oz. Aerosol Can]](https://www.jegs.com/images/mini_200/600/639/639-11043.jpg)




![Fender Cover with Pocket [23 in. W x 31 1/2 in. L]](https://www.jegs.com/images/mini_200/500/555/555-65010.jpg)





![2-Ton Low-Profile Aluminum Floor Jack [4,000 lbs. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-80006.jpg)

![Steel Reducers with O2 Fittings [3 in. Collector to 2 1/2 in. O.D.]](https://www.jegs.com/images/mini_200/500/555/555-30012.jpg)
![Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-81156.jpg)