Standard Duty HTC Coated Full-Length Headers 1971-91 GM G-Series Van 305-400

Name: Standard Duty HTC Coated Full-Length Headers 1971-91 GM G-Series Van 305-400
Brand: HEDMAN
SKU: 500-66061
Price: 734.99 USD
Availability: OutOfStock

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

GM Trucks

1971-91 GM G-Series Van 305-400
1-5/8" Tube, 3" Collector
With A.I.R. system
Vehicles equipped with large piston AC compressors require the use of bracket #500-20110
Must modify rotary A/C bracket
Designed for use with Trans-Dapt throttle body spacer
Includes parts necessary to retain emission devices (50-state legal for 1975-82 only)
Not legal for sale or use in California on pollution-controlled vehicles
Modification to stock exhaust required to retain catalytic converter
For 1964-74 vehicles with A.I.R. system (considered OE replacement when existing emission controls are not removed from vehicle)

Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and MID-LENGTH tube headers for Pontiac models for decades. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your vehicle's exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.

These headers have a high temperature POLISHED-SILVER ceramic finish that resists corrosion, and can withstand temperatures up to 1400 degree F. Each set includes a pair of header gaskets, header flange bolts and collector bolts. No collector gasket is needed. Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.

Made in the USA

Features:

Coating offers protection up to 1400°.
Won't chip, peel, or "blue" like chrome.
Superior heat insulation.
Increased exhaust velocity for more power.

NOTE: Installing coated headers on an engine during the break-in period will cause discoloration. The use of factory manifolds or an old set of headers is recommended while breaking in an engine.

Part TypeHeader

Product LineHedman HTC Hi-Tech Coated Headers

BrandHEDMAN

Package Height9.63

Package Width18.25

Package Length39.25

Weight32.0 PG

Part CategoryPerformance Parts

Carb Eo NumberD-167-26 (pdf)

Header FinishSilver ceramic coated

Tube DirectionDown Swept

QuantitySold as a pair