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Product Summary

Long Tube Header Tube Type, Standard Flange Style

  • Standard-Duty Headers For 1968-76 Oldsmobile Cars With 350 Oldsmobile Engine (Only)
  • 1-3/4 In. Long Tube Design
  • 3 In. Ball/Socket Collector- Mild Steel Construction With HTC Polished-Silver Ceramic Finish
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Key Specs

MFG. Part #58066
Header Tube TypeLong Tube
Flange StyleStandard
Primary Tube Diameter1-3/4"
Material TypeMild Steel
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Hedman Hedders 58066 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-Duty Headers For 1968-76 Oldsmobile Cars With 350 Oldsmobile Engine (Only)
  • 1-3/4 In. Long Tube Design
  • 3 In. Ball/Socket Collector- Mild Steel Construction With HTC Polished-Silver Ceramic Finish

Application

  • 1968-1977 Oldsmobile Cutlass CID 350 5.7 Liter
  • 1968-1972 Oldsmobile F85 CID 350 5.7 Liter
  • 1968-1975 Oldsmobile Vista Cruiser CID 350 5.7 Liter

Specs

Manufacturer Specs:

TUBE DIAMETER1-3/4 in.
TUBE STYLELong Tubes
AIR CONDITIONINGYes
AUTOMATIC TRANSMISSION - COLUMNYes
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.
CONTENTSheaders, gaskets (when applicable), 3-bolt exhaust adapters, hardware
FINISHHTC Polished Silver Ceramic-Metallic
FINISH TYPEHTC SILVER (polished) Ceramic-metallic Coating
FLANGE STYLEStandard
FLANGE THICKNESS0.3125 in.
HEADER STYLELong Tube
MATERIALMild Steel
TUBE DESIGNStandard
TUBE LENGTHLong Tubes
TUBE MATERIAL THICKNESS16g
TUBE SIZE1-3/4 in.
WITH AIR SYSTEMNo
WITH EGRNo
EOYes
EO #EO# D167-27
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 IN1.75 in.
PACKAGE CONTENTSHeaders, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
HEADER MATERIALMild Steel
HEADER FINISHHTC Polished Silver Ceramic-Metallic
CYLINDER HEAD PORT SHAPERectangle
CYLINDER HEADStock Profile Heads
HEADER CONSTRUCTIONMILD STEEL- Standard-Duty
REPLACEMENT GASKET41827800
REPLACEMENT HEAD FLANGE GASKET41827800

Hedman Hedders 58066 Specifications

D-167-27
KEY SPECS
MFG. Part #58066
BrandHedman Hedders
Header Tube TypeLong Tube
Flange StyleStandard
Primary Tube Diameter1-3/4"
Material TypeMild Steel
ColorSilver
Weld-UpNo
Collector Diameter3 Inch
FinishPolished
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# D167-27

Fitment

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

  • Oldsmobile 350 Small-Block

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