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Long Tube Headers Compatible with 1966-1987 Chevy GMC Blazer Suburban C10 C20 C30 K10 K20 K30 Trucks 283-400 Small Block V8

4.9 (1) Write Review
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$249.99

$ 99 .00 $99.00

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About this item

  • 【Compatibility】Exhaust headers for 1966-1987 Chevy GMC trucks with 283-400 small block V8 2WD & 4WD
  • 【Unique Design】These exhaust headers feature full-length mandrel-bent tubing with precision-engineered curves to minimize exhaust backpressure delivering improved fuel economy.
  • 【Material】SBC headers mandrel-bent tubing optimizes exhaust flow dynamics, reducing backpressure to enhance throttle response and low-end torque.
  • 【Easy Installation】Headers 5.7 Chevy 350 Includes all mounting hardware for direct fitment. To prevent clearance issues, use short-thread spark plugs and plug wire heat shields. we suggest taking it to a pro installation shop.
  • 【Welding Process】5/16" thick flanges & precision TIG welding prevent exhaust leaks under extreme heat/vibration. Reinforced collector joints prevent cracking, ensuring long-term durability for high-performance engines.


Product Description

c10 ls swap headers

Fitment

Compatible with: Fits 265, 262, 283, 305, 307, 327, 350, and 400 SBC engines when installed in 1973-1991 Square Body pickups. Not recommended for stock height 4x4 trucks - Stock height 4x4 trucks may experience front driveshaft clearance issues.

spark plugs

Installation Advice

For engines with angled spark plugs, use Accel 0576S or Accel 0414S. standard spark plugs may contact the collector tube and require recalibration or trimming of the heat shield for a safe gap. (Product does not include this spark plug)

5.3 headers

TIG welded

Reinforced welds minimize exhaust leaks under 1500°F continuous operation. Laser-aligned seams withstand high-frequency vibration, maintaining structural integrity for 100K+ mile durability.

long tube headers 5.3 silverado

T304 stainless steel shell

T304 Stainless Steel Exhaust Tubing by Precision Mandrel Bending 304SS tubing maintains a consistent exhaust flow diameter and reduces turbulence to optimize scavenging efficiency.

High quality bolt

High quality bolt

Premium bolts enhance exhaust system safety.

long tube headers 5.3 silverado

Aliviana York 2.0
Reviewed in the United States on May 19, 2025
Beautiful shine and quality looking craftsmanship.The collector on the header seems to be 3 inches but the bolt on outlet chokes down to 2-1/2 inches, that is actually perfect because I intend to run the exhaust in 2-1/2 inch tubing.The manifold gaskets are meh, get some copper gaskets. If you struggle to get the outer bolts installed (always test fit before tightening bolts) you might need to enlarge the outermost holes with a 7/16 drill bit. I did not need to but have on sum it brand headers.They may not fit on a unlifted 4x4 truck. It depends on the transmission/transfer case your truck has, the front drives haft may run very close to the collector. You can fix this by taking a slight pie cut out of the collector and welding it back together at a slight angle, aimed away from the T-case. It's a bummer to cut/weld a new set of chrome headers but it works.I think these are a fair value for a nice set of headers and I approve of them.