Product Summary

Mid-Length Header Tube Type, Round Exhaust Port Shape

  • HTC Coated Headers
  • 1-5/8 In. Tube Dia.
  • Stock Coll.
  • Mid-Length Design
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Key Specs

MFG. Part #66481
Header Tube TypeMid-Length
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
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Need To Know

Made to Order

This custom item will ship when completed

Quick and Easy Returns

Return Policy

Hedman Hedders 66481 Details

Hedman Hedders has been manufacturing quality headers in the USA since 1954, and classic musclecars is their specialty. 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 you to bolt up, even if it is not perfectly aligned with the header collectors.

Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.

Features

  • HTC Coated Headers
  • 1-5/8 In. Tube Dia.
  • Stock Coll.
  • Mid-Length Design

Application

  • 1982-1992 Chevrolet Camaro CID 305 Naturally Aspirated GAS
  • 1987-1992 Chevrolet Camaro CID 350 Naturally Aspirated GAS
  • 1982-1991 Pontiac Firebird 5.0 Liter Naturally Aspirated GAS
  • 1987-1991 Pontiac Firebird 5.7 Liter Naturally Aspirated GAS
  • 1982-1991 Pontiac Firebird CID 305 Naturally Aspirated GAS
  • 1987-1991 Pontiac Firebird CID 350 Naturally Aspirated GAS

Specs

Manufacturer Specs:

TUBE DIAMETER1-5/8 in.
TUBE STYLEMid-Length
AIR CONDITIONINGYes
AUTOMATIC TRANSMISSION - COLUMNYes
AUTOMATIC TRANSMISSION - FLOORYes
MANUAL TRANSMISSION - COLUMNNo
MANUAL TRANSMISSION - FLOORYes
POWER STEERINGYes
COLLECTOR ATTACHMENTStock
COLLECTOR DIAMETERStock
COLLECTOR SIZEStock
COLLECTOR STYLEBALL and SOCKET Style (Gasketless)
REDUCER OUTLET SIZEFactory hookup
EXHAUST SYSTEM DIA2-1/2 in.
CONTENTSHeader(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
FINISHHTC Polished Silver Ceramic-Metallic
FINISH TYPEHTC SILVER (polished) Ceramic-metallic Coating
FLANGE STYLEStandard
FLANGE THICKNESS0.3125 in.
HEADER STYLEMid-Length Tube
NOTES82-92 Camaro, Firebird 283-400
MATERIALMild Steel
TUBE DESIGNStandard
TUBE LENGTHMid-Length Tubes
TUBE MATERIAL THICKNESS16g
TUBE SIZE1-5/8 in.
WITH AIR SYSTEMYes
WITH EGRNo
EOYes
EO #EO# D167-33
WELD-UPNo
TUNEDNo
BOLTS/STUDS INCLUDEDYes
CATALYTIC CONVERTERS INCLUDEDNo
CROSSOVER PIPE INCLUDEDNo
GASKET OR SEAL INCLUDEDYes
HEADER FASTENERS INCLUDEDYes
INSTALLATION HARDWARE INCLUDEDYes
MOTOR MOUNTS INCLUDEDNo
MOUNTING HARDWARE INCLUDEDYes
REDUCERS INCLUDEDYes
Y-PIPE INCLUDEDYes
QUANTITYSold as a pair.
PRIMARY TUBE GAUGE16g
PRIMARY TUBE DIAMETER IN1.625 in.
PACKAGE CONTENTSHeaders, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
HEADER MATERIALMild Steel
HEADER FINISHHTC Polished Silver Ceramic-Metallic
CYLINDER HEAD PORT SHAPERound
CYLINDER HEADStock Profile Heads
HEADER CONSTRUCTIONMILD STEEL- Standard-Duty
REPLACEMENT GASKET41827520
REPLACEMENT HEAD FLANGE GASKET41827520
HEADER PORT SHAPERound Port
PORT SHAPERound
COLLECTOR BOLTS INCLUDEDYes
AIR CONDITIONING NOTESWith A.I.R.

Hedman Hedders 66481 Specifications

D-167-33
KEY SPECS
MFG. Part #66481
BrandHedman Hedders
Header Tube TypeMid-Length
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeMild Steel
ColorSilver
Weld-UpNo
Collector DiameterStandard
FinishPolished
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedYes
CARB EO#
GENERAL
Sold in QuantitySet
Flange Thickness0.3125"
TunedNo
Crossover Pipe IncludedNo
Primary Tube Gauge16-gauge
CARB EO NumberEO# D167-33

Questions & Answers

Fitment

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