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#41866127
Hedman Hedders 66127 67-91 GM TRuck Headers, HTC
- HTC Coated Headers
- 1-3/4 In. Tube Dia.
- 3 In. Coll.
$703.99
/set
Factory Shipped
Quantity
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Product Summary
Long Tube Header Tube Type, Square Exhaust Port Shape
- HTC Coated Headers
- 1-3/4 In. Tube Dia.
- 3 In. Coll.
- Full Length Design
Key Specs
| MFG. Part # | 66127 |
| Header Tube Type | Long Tube |
| Exhaust Port Shape | Square |
| Flange Style | Standard |
| Primary Tube Diameter | 1-3/4" |
Need To Know
Made to Order
This custom item will ship when completed
Need help?
855.313.9176Quick and Easy Returns
Return PolicyHedman Hedders 66127 Details
Hedman Hedders 66127 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
- 1-3/4 In. Tube Dia.
- 3 In. Coll.
- Full Length Design
Application
- 1975-1995 Chevrolet P30 Base CID 454 Naturally Aspirated GAS
Specs
Manufacturer Specs:
| TUBE DIAMETER | 1-3/4 in. |
| TUBE STYLE | Long Tubes |
| AIR CONDITIONING | Yes |
| AUTOMATIC TRANSMISSION - COLUMN | Yes |
| AUTOMATIC TRANSMISSION - FLOOR | Yes |
| MANUAL TRANSMISSION - COLUMN | No |
| MANUAL TRANSMISSION - FLOOR | No |
| POWER STEERING | Yes |
| COLLECTOR ATTACHMENT | 3 in. |
| COLLECTOR DIAMETER | 3 in. |
| COLLECTOR SIZE | 3 in. |
| COLLECTOR STYLE | BALL and SOCKET Style (Gasketless) |
| REDUCER OUTLET SIZE | 2-1/2 in. |
| EXHAUST SYSTEM DIA | 2-1/2 in. |
| CONTENTS | Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions |
| FINISH | HTC Polished Silver Ceramic-Metallic |
| FINISH TYPE | HTC SILVER (polished) Ceramic-metallic Coating |
| FLANGE STYLE | Standard |
| FLANGE THICKNESS | 0.375 in. |
| HEADER STYLE | Long Tube |
| NOTES | 68-95 GM Class A Motorhome 283-400 |
| MATERIAL | Mild Steel |
| TUBE DESIGN | Standard |
| TUBE LENGTH | Long Tubes |
| TUBE MATERIAL THICKNESS | 16g |
| TUBE SIZE | 1-3/4 in. |
| WITH AIR SYSTEM | No |
| WITH EGR | No |
| EO | Yes |
| EO # | EO# D167-33 |
| WELD-UP | No |
| TUNED | No |
| BOLTS/STUDS INCLUDED | Yes |
| CATALYTIC CONVERTERS INCLUDED | No |
| CROSSOVER PIPE INCLUDED | No |
| GASKET OR SEAL INCLUDED | Yes |
| HEADER FASTENERS INCLUDED | Yes |
| INSTALLATION HARDWARE INCLUDED | Yes |
| MOTOR MOUNTS INCLUDED | No |
| MOUNTING HARDWARE INCLUDED | Yes |
| REDUCERS INCLUDED | Yes |
| Y-PIPE INCLUDED | No |
| QUANTITY | Sold as a pair. |
| PRIMARY TUBE GAUGE | 16g |
| PRIMARY TUBE DIAMETER IN | 1.75 in. |
| PACKAGE CONTENTS | Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| HEADER MATERIAL | Mild Steel |
| HEADER FINISH | HTC Polished Silver Ceramic-Metallic |
| CYLINDER HEAD PORT SHAPE | Square |
| CYLINDER HEAD | Stock Profile Heads |
| HEADER CONSTRUCTION | MILD STEEL- Standard-Duty |
| REPLACEMENT GASKET | 41827500 |
| REPLACEMENT HEAD FLANGE GASKET | 41827500 |
| HEADER PORT SHAPE | Square Port |
| PORT SHAPE | Square |
| COLLECTOR BOLTS INCLUDED | Yes |
Guides & Documents
Hedman Hedders 66127 Specifications
Hedman Hedders 66127 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 66127 |
| Brand | Hedman Hedders |
| Header Tube Type | Long Tube |
| Exhaust Port Shape | Square |
| Flange Style | Standard |
| Primary Tube Diameter | 1-3/4" |
| Material Type | Mild Steel |
| Color | Silver |
| Weld-Up | No |
| Collector Diameter | 3 Inch |
| Finish | Polished |
| Hardware Included | Yes |
| Gasket(s) Included | Yes |
| Collector Reducers Included | Yes |
| Collector Reducer Exit Diameter | 2.5" |
| CARB EO# | |
| GENERAL | |
| Sold in Quantity | Set |
| Collector Length | 3" |
| Flange Thickness | 0.375" |
| Tuned | No |
| Crossover Pipe Included | No |
| Primary Tube Gauge | 16-gauge |
| CARB EO Number | EO# D167-33 |
Ratings & Reviews
Ratings & Reviews
Questions & Answers
Questions & Answers
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Fitment
Fitment
1970-1975 Chevy Bel Air
454 Chevy Big Block V8
1970-1972 Chevy Biscayne
454 Chevy Big Block V8
1970-1972 Chevy Brookwood
454 Chevy Big Block V8
1973-1979 Chevy C10
454 Chevy Big Block V8
1973-1979 Chevy C10 Suburban
454 Chevy Big Block V8
1988 Chevy C15
454 Chevy Big Block V8
1990 Chevy C1500
454 Chevy Big Block V8
1991 Chevy C1500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5
1992-1993 Chevy C1500
454 Chevy Big Block V8
1973-1987 Chevy C20
454 Chevy Big Block V8
1973-1986 Chevy C20 Suburban
454 Chevy Big Block V8
1991 Chevy C2500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy C2500
454 Chevy Big Block V8
1996-1997 Chevy C2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1992-1995 Chevy C2500 Suburban
454 Chevy Big Block V8
1996-1997 Chevy C2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1973-1986 Chevy C30
454 Chevy Big Block V8
1988-1990 Chevy C3500
454 Chevy Big Block V8
1991 Chevy C3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy C3500
454 Chevy Big Block V8
1996-1997 Chevy C3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1970-1976 Chevy Caprice
454 Chevy Big Block V8
1970-1973 Chevy Chevelle
454 Chevy Big Block V8
1970-1974 Chevy Corvette
454 Chevy Big Block V8
1970-1975 Chevy El Camino
454 Chevy Big Block V8
1970 Chevy Estate
454 Chevy Big Block V8
1996-2000 Chevy Express 2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1996-2000 Chevy Express 3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1988-1990 Chevy G30
454 Chevy Big Block V8
1991 Chevy G30
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy G30
454 Chevy Big Block V8
1996 Chevy G30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1970-1976 Chevy Impala
454 Chevy Big Block V8
1973-1974 Chevy K10
454 Chevy Big Block V8
1973-1974 Chevy K10 Suburban
454 Chevy Big Block V8
1973-1974 Chevy K20
454 Chevy Big Block V8
1973-1974 Chevy K20 Suburban
454 Chevy Big Block V8
1985 Chevy K20 Suburban
454 Chevy Big Block V8
1991 Chevy K2500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy K2500
454 Chevy Big Block V8
1996-1997 Chevy K2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1992-1995 Chevy K2500 Suburban
454 Chevy Big Block V8
1996-1997 Chevy K2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1977-1986 Chevy K30
454 Chevy Big Block V8
1988-1990 Chevy K3500
454 Chevy Big Block V8
1991 Chevy K3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy K3500
454 Chevy Big Block V8
1996-1997 Chevy K3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1970-1972 Chevy Kingswood
454 Chevy Big Block V8
1973-1975 Chevy Laguna
454 Chevy Big Block V8
1973-1975 Chevy Malibu
454 Chevy Big Block V8
1970-1975 Chevy Monte Carlo
454 Chevy Big Block V8
1975-1990 Chevy P30
454 Chevy Big Block V8
1991 Chevy P30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5
1992-1995 Chevy P30
454 Chevy Big Block V8
1996-1997 Chevy P30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1973-1974 Chevy P30 Van
454 Chevy Big Block V8
1987-1988 Chevy R20
454 Chevy Big Block V8
1987-1988 Chevy R20 Suburban
454 Chevy Big Block V8
1989 Chevy R2500
454 Chevy Big Block V8
1989-1990 Chevy R2500 Suburban
454 Chevy Big Block V8
1991 Chevy R2500 Suburban
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1987-1988 Chevy R30
454 Chevy Big Block V8
1989-1990 Chevy R3500
454 Chevy Big Block V8
1991 Chevy R3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1970-1972 Chevy Townsman
454 Chevy Big Block V8
1987-1988 Chevy V20 Suburban
454 Chevy Big Block V8
1990 Chevy V2500 Suburban
454 Chevy Big Block V8
1987-1988 Chevy V30
454 Chevy Big Block V8
1989-1990 Chevy V3500
454 Chevy Big Block V8
1991 Chevy V3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1975-1978 GMC C15
454 Chevy Big Block V8
1975-1978 GMC C15 Suburban
454 Chevy Big Block V8
1973-1974 GMC C15/C1500 Pickup
454 Chevy Big Block V8
1973-1974 GMC C15/C1500 Suburban
454 Chevy Big Block V8
1979 GMC C1500
454 Chevy Big Block V8
1979 GMC C1500 Suburban
454 Chevy Big Block V8
1975-1978 GMC C25
454 Chevy Big Block V8
1975-1978 GMC C25 Suburban
454 Chevy Big Block V8
1973-1974 GMC C25/C2500 Pickup
454 Chevy Big Block V8
1973-1974 GMC C25/C2500 Suburban
454 Chevy Big Block V8
1979-1986 GMC C2500
454 Chevy Big Block V8
1988-1990 GMC C2500
454 Chevy Big Block V8
1991 GMC C2500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 GMC C2500
454 Chevy Big Block V8
1996-2000 GMC C2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1979-1986 GMC C2500 Suburban
454 Chevy Big Block V8
1992-1995 GMC C2500 Suburban
454 Chevy Big Block V8
1996-1999 GMC C2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1975-1978 GMC C35
454 Chevy Big Block V8
1979-1986 GMC C3500
454 Chevy Big Block V8
1988-1990 GMC C3500
454 Chevy Big Block V8
1991 GMC C3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 GMC C3500
454 Chevy Big Block V8
1996-2000 GMC C3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1994-1999 GMC K2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1977-1978 GMC K35
454 Chevy Big Block V8
1979-1986 GMC K3500
454 Chevy Big Block V8
1988-1990 GMC K3500
454 Chevy Big Block V8
1991 GMC K3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 GMC K3500
454 Chevy Big Block V8
1996-2000 GMC K3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1987-1989 GMC R2500
454 Chevy Big Block V8
1987-1990 GMC R2500 Suburban
454 Chevy Big Block V8
1991 GMC R2500 Suburban
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1987-1990 GMC R3500
454 Chevy Big Block V8
1991 GMC R3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1996-2000 GMC Savana 2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1996-2000 GMC Savana 3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1971-1977 GMC Sprint
454 Chevy Big Block V8