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Doug's Headers D376Y Tri-Y Header, 1-5/8 In, 67-74 Chevelle, CC

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#447D376Y

Doug's Headers D376Y Tri-Y Header, 1-5/8 In, 67-74 Chevelle, CC

Name: Doug's Headers D376Y Tri-Y Header, 1-5/8 In, 67-74 Chevelle, CC
Brand: Doug's Headers
SKU: 447D376Y
Price: 693.97 USD
Availability: InStock

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$693.97

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Factory Shipped

$763.37

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Product Summary

Tri-Y Header Tube Type, Oval Exhaust Port Shape, Steel

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Key Specs

MFG. Part #	D376Y
Header Tube Type	Tri-Y
Exhaust Port Shape	Oval
Flange Style	Standard
Primary Tube Diameter	1-5/8"

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Need To Know

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855.313.9176

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Doug's Headers D376Y Details

Doug's PASSENGER CAR HEADERS Tri-Y Metallic Ceramic Coated Header development and design is complex and requires a substantial amount of time and resources to do the job right! Many manufacturers are unwilling to make the commitment and instead offer compromised headers at lower prices. Doug's will not compromise performance, quality or fit to compete with inferior designs at cheap prices. Every Doug's header is tuned with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses resulting in a dramatic increases in horsepower and torque. Doug's headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.

3/8" Thick machined flanges...no warping
CNC mandrel bent tubes... accurate fit & better flow
Tri-Y headers yield maximum power from off idle to 4500 RPM making them well suited for applications demanding maximum mid-range torque with maximum fuel economy
Heavy 16 gauge tubing...longer life
Tubes are pre-polished to remove scratches and the header isfinished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees

Doug's Headers D376Y 1 5/8" Tri-Y Header Chevrolet Chevelle Small Block Chevrolet 64-67 Metallic Ceramic Coating
Tri-Y Design - Ceramic Coated
Collector: 2 1/2
Port: OVL
Primary: 1 5/8 - 2
Does not fit w/ power glide trans
exc. states w/Calif. emission stds
Fits D-Port heads
req. left side AC bracket H7608.
with A/C
For Off-Road Use Only

Doug's Headers D376Y 1 5/8" Tri-Y Header Chevrolet Chevelle Small Block Chevrolet 64-67 Metallic Ceramic Coating
Tri-Y Design - Ceramic Coated
Collector: 2 1/2
Port: OVL
Primary: 1 5/8 - 2
Does not fit w/ power glide trans
exc. states w/Calif. emission stds
Fits D-Port heads
req. left side AC bracket H7608.
with A/C
For Off-Road Use Only

Application

1964-1967 Chevrolet Chevelle 4.6L/283 V8
1964-1967 Chevrolet Chevelle 5.3L/327 V8
1964-1967 Chevrolet El Camino 4.6L/283 V8
1964-1967 Chevrolet El Camino 5.3L/327 V8
1964-1967 Chevrolet Malibu 4.6L/283 V8
1964-1967 Chevrolet Malibu 5.3L/327 V8

Charts

Installation Instructions (PDF)

Guides & Documents

Headers Installation Instructions (447D376Y)

CARB Warning

For use on pre-1966 vehicles only

Emissions warning: this part only legal for sale or use in California if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. ++any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering there are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Doug's Headers D376Y Specifications

KEY SPECS
MFG. Part #	D376Y
Brand	Doug's Headers
Header Tube Type	Tri-Y
Exhaust Port Shape	Oval
Flange Style	Standard
Primary Tube Diameter	1-5/8"
Material Type	Steel
Color	Silver
Weld-Up	No
Collector Diameter	2-1/2 Inch
Finish	Ceramic Coated
Hardware Included	Yes
Gasket(s) Included	Yes

GENERAL
Sold in Quantity	Pair
GTIN Code	694342509323

Ratings & Reviews

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Questions & Answers

1 Question • 1 Answer

Sort Questions

My '66 El Camino has a 1995 LT-1 engine with angle plug heads and a 4L60E transmission. Both the engine and transmission are from a 1995 Corvette. Will there be a clearance problem with the spark plugs and the transmission?

by Rick

• 8 years ago

1 answer

View Answer

1 of 1 questions shown

Fitment

1959 Chevy 3A

2-Piece Rear Main Chevy 283

1959 Chevy 3B

2-Piece Rear Main Chevy 283

1959 Chevy 3C

2-Piece Rear Main Chevy 283

1959 Chevy 3D

2-Piece Rear Main Chevy 283

1959 Chevy 3E

2-Piece Rear Main Chevy 283

1959 Chevy 3F

2-Piece Rear Main Chevy 283

1959 Chevy 3G

2-Piece Rear Main Chevy 283

1957-1967 Chevy Bel Air

2-Piece Rear Main Chevy 283

1958-1967 Chevy Biscayne

2-Piece Rear Main Chevy 283

1958-1961 Chevy Brookwood

2-Piece Rear Main Chevy 283

1960-1967 Chevy C10

2-Piece Rear Main Chevy 283

1960-1967 Chevy C10 Suburban

2-Piece Rear Main Chevy 283

1960-1967 Chevy C20

2-Piece Rear Main Chevy 283

1960-1967 Chevy C20 Suburban

2-Piece Rear Main Chevy 283

1960-1967 Chevy C30

2-Piece Rear Main Chevy 283

1966-1967 Chevy Caprice

2-Piece Rear Main Chevy 283

1964-1967 Chevy Chevelle

2-Piece Rear Main Chevy 283

1963-1967 Chevy Chevy II

2-Piece Rear Main Chevy 283

1957-1961 Chevy Corvette

2-Piece Rear Main Chevy 283

1957-1958 Chevy Del Ray

2-Piece Rear Main Chevy 283

1959-1960 Chevy El Camino

2-Piece Rear Main Chevy 283

1964-1967 Chevy El Camino

2-Piece Rear Main Chevy 283

1967 Chevy G20 Van

2-Piece Rear Main Chevy 283

1958-1967 Chevy Impala

2-Piece Rear Main Chevy 283

1960-1967 Chevy K10

2-Piece Rear Main Chevy 283

1960-1967 Chevy K10 Suburban

2-Piece Rear Main Chevy 283

1960-1967 Chevy K20

2-Piece Rear Main Chevy 283

1967 Chevy K20 Panel

2-Piece Rear Main Chevy 283

1960-1967 Chevy K20 Suburban

2-Piece Rear Main Chevy 283

1959-1961 Chevy Kingswood

2-Piece Rear Main Chevy 283

1964-1967 Chevy Malibu

2-Piece Rear Main Chevy 283

1957-1961 Chevy Nomad

2-Piece Rear Main Chevy 283

1957 Chevy One-Fifty Series

2-Piece Rear Main Chevy 283

1961-1962 Chevy P30 Series

2-Piece Rear Main Chevy 283

1959-1961 Chevy Parkwood

2-Piece Rear Main Chevy 283

1957-1958 Chevy Sedan Delivery

2-Piece Rear Main Chevy 283

1960-1967 Chevy Suburban

2-Piece Rear Main Chevy 283

1957-1958 Chevy Truck

2-Piece Rear Main Chevy 283

1960 Chevy Truck

2-Piece Rear Main Chevy 283

1957 Chevy Two-Ten Series

2-Piece Rear Main Chevy 283

1958 Chevy Yeoman

2-Piece Rear Main Chevy 283

1966 GMC 1000

2-Piece Rear Main Chevy 283

1960 GMC 1000 Series

2-Piece Rear Main Chevy 283

1962-1965 GMC 1000 Series

2-Piece Rear Main Chevy 283

1960-1965 GMC 1500 Series

2-Piece Rear Main Chevy 283

1966 GMC 2500

2-Piece Rear Main Chevy 283

1960-1965 GMC 2500 Series

2-Piece Rear Main Chevy 283

1960-1966 GMC 3000

2-Piece Rear Main Chevy 283

1960-1966 GMC 3500

2-Piece Rear Main Chevy 283

1967 GMC C25/C2500 Pickup

2-Piece Rear Main Chevy 283

1967 GMC C25/C2500 Suburban

2-Piece Rear Main Chevy 283

1967 GMC C35/C3500 Pickup

2-Piece Rear Main Chevy 283

1967 GMC K25/K2500 Pickup

2-Piece Rear Main Chevy 283

1967 GMC K25/K2500 Suburban

2-Piece Rear Main Chevy 283

1967 GMC K35/K3500 Pickup

2-Piece Rear Main Chevy 283

1966 GMC P1000

2-Piece Rear Main Chevy 283

1955-1966 GMC Suburban

2-Piece Rear Main Chevy 283

1956-1960 GMC Truck

2-Piece Rear Main Chevy 283

1965-1966 Studebaker Commander

2-Piece Rear Main Chevy 283

1965-1966 Studebaker Cruiser

2-Piece Rear Main Chevy 283

1965-1966 Studebaker Daytona

2-Piece Rear Main Chevy 283

1966 Studebaker Wagonaire

2-Piece Rear Main Chevy 283