Hedman Hedders 68447 87-91 Corvette Headers, Uncoated
Hedman Hedders 68447 87-91 Corvette Headers, Uncoated
Hedman Hedders

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#41868447

Hedman Hedders 68447 87-91 Corvette Headers, Uncoated

  • Standard Uncoated Headers
  • 1-5/8 In. Tube Dia.
  • 3 In. Coll.
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$380.99

/set

Factory Shipped


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Product Summary

Long Tube Header Tube Type, Round Exhaust Port Shape

  • Standard Uncoated Headers
  • 1-5/8 In. Tube Dia.
  • 3 In. Coll.
  • Full Length Design
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Key Specs

MFG. Part #68447
Header Tube TypeLong Tube
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
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This custom item will ship when completed

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Hedman Hedders 68447 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

  • Standard Uncoated Headers
  • 1-5/8 In. Tube Dia.
  • 3 In. Coll.
  • Full Length Design

Application

  • 1988 Chevrolet Corvette 35th Anniversary Edition CID 350 Naturally Aspirated GAS
  • 1987 Chevrolet Corvette Base CID 350 Naturally Aspirated GAS
  • 1989-1990 Chevrolet Corvette Base CID 350 Naturally Aspirated GAS

Specs

Manufacturer Specs:

TUBE DIAMETER1-5/8 in.
TUBE STYLELong Tubes
AIR CONDITIONINGYes
AUTOMATIC TRANSMISSION - COLUMNNo
AUTOMATIC TRANSMISSION - FLOORYes
MANUAL TRANSMISSION - COLUMNNo
MANUAL TRANSMISSION - FLOORYes
POWER STEERINGYes
COLLECTOR ATTACHMENT3 in.
COLLECTOR DIAMETER3 in.
COLLECTOR SIZE3 in.
COLLECTOR STYLEBALL and SOCKET Style (Gasketless)
REDUCER OUTLET SIZE2-1/2 in.
EXHAUST SYSTEM DIA2-1/2 in.
CONTENTSHeader(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
FINISHUncoated
FINISH TYPEUNCOATED Mild Steel! Shipped with Temporary Paint.
FLANGE STYLEStandard
FLANGE THICKNESS0.3125 in.
HEADER STYLELong Tube
NOTES87-91 Chevrolet Corvette 283-400
MATERIALMild Steel
TUBE DESIGNStandard
TUBE LENGTHLong 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 INCLUDEDNo
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 FINISHUncoated
CYLINDER HEAD PORT SHAPERound
CYLINDER HEADStock Profile Heads
HEADER CONSTRUCTIONMILD STEEL- Standard-Duty
REPLACEMENT GASKET41827312
REPLACEMENT HEAD FLANGE GASKET41827312
INSTALLATION NOTESEGR Gasket Not Included! Must purchase AC Delco #219-590 or GM #19236589
HEADER PORT SHAPERound Port
PORT SHAPERound
COLLECTOR BOLTS INCLUDEDYes
AIR CONDITIONING NOTESWith A.I.R.

Hedman Hedders 68447 Specifications

D-167-33
KEY SPECS
MFG. Part #68447
BrandHedman Hedders
Header Tube TypeLong Tube
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeMild Steel
ColorNatural
Weld-UpNo
Collector Diameter3 Inch
FinishUncoated
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedYes
Collector Reducer Exit Diameter2.5"
CARB EO#
GENERAL
Sold in QuantitySet
Collector Length3"
Flange Thickness0.3125"
TunedNo
Crossover Pipe IncludedNo
Primary Tube Gauge16-gauge
CARB EO NumberEO# D167-33

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