Standard Duty HTC Coated Full-Length Headers 1975-95 Chevy P30 454 & Class A Motorhome

Vehicle Info Needed

HEDMANPART NUMBER: 500-66121

Standard Duty HTC Coated Full-Length Headers 1975-95 Chevy P30 454 & Class A Motorhome

Name: Standard Duty HTC Coated Full-Length Headers 1975-95 Chevy P30 454 & Class A Motorhome
Brand: HEDMAN
SKU: 500-66121
Price: 699.99 USD
Availability: InStock

^$699⁹⁹

Ships on 10/30/2026

Lowest Price Guarantee

GM Trucks

1975-95 Chevy P30 454 & Class A Motorhome
1-3/4" Tube, 3" Collector
With A.I.R. system
Square port header
Designed for use with Trans-Dapt throttle body spacer
Includes parts necessary to retain 50-state emission devices
Modification to stock exhaust required to retain catalytic converter
EO#D167-27

Part TypeHeader

BrandHEDMAN

Package Height8.25

Package Width16.5

Package Length39.0

Weight36.0 PG

Part CategoryPerformance Parts

Carb Eo NumberD-167-26 (pdf)

Header FinishSilver ceramic coated

Tube DirectionDown Swept

QuantitySold as a pair

Bolts/Studs IncludedYes

Transmission Mount IncludedNo

Header MaterialSteel

Gaskets IncludedYes

Weld-UpNo

Collector AttachmentBall and socket flange

Flange StyleStandard

TunedNo

Collector Diameter3 in (76.2 mm)

Motor Mounts IncludedNo

Part FitmentSemi Universal

Reducers IncludedYes

ApplicationAutomotive

Primary Tube Gauge18-gauge

Header StyleFull-length

Cross Over Pipe IncludedNo

Catalytic Converter(S) IncludedNo

Primary Tube Diameter1.75 in (44.5 mm)

Vendor Part Number66121

Package Qty1

Package TypeEA

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