800.345.4545
Unrivaled Customer Service
And Expert Tech Advice!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

JEGS Performance Products 31850

AMC Header Flange AMC 290-401

JEGS Performance Products 31850

555-31850

made in usa
jegs shipping
Ships
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
JEGS Performance Products 31850 AMC Header Flange AMC 290-401 $39.99
AMC Header Flange
  • AMC 290-401
  • ("P" or "Dog-Leg") Shaped Port
  • 1-3/16" H x 1-1/4" W x 1-9/16" W
  • 1/pkg.
  • Made in the USA

  • Specifications:

    Engine Make/Size
    AMC 290-401
    Quantity
    Sold individually
    Gaskets Included
    No
    Header Bolt Pattern
    Stock
    Header Flange Material
    Steel
    Header Flange Thickness (in.)
    0.375
    Includes Stubs for Primary Tubes
    No
    Mounting Hardware Included
    No
    Header Flange Port Shape
    P-port
    Header Flange Port Size (in.)
    1.25
    Shipping Weight:
    3.20
    Package Height:
    21.600
    Package Depth:
    .700
    Package Width:
    3.600

    JEGS Header Exhaust Flanges are machined from 3/8" thick (Except Where Noted) steel plate for strength and durability. Available in a variety of configurations for the most common applications. Sold 1/pkg. Gaskets, bolts and tubing kit are sold separately. JEGS header flanges are precision CNC laser cut. Requires welding.

    JEGS Open Wheel Long Tube Weld-Up Headers
    JEGS Block Hugger Weld-Up Headers
    JEGS In-Chassis Long Tube Weld-Up Headers

    Does JEGS Performance Products 31850 fit your vehicle?

    Narrow Results

    1975-1977 AMERICAN MOTORS HORNET

    • Liter: 5.0
    • SubModel: SPORTABOUT
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1971 AMERICAN MOTORS HORNET

    • CC: 5899
    • Liter: 5.9
    • SubModel: SPORTABOUT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: DPL
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1974 AMERICAN MOTORS AMBASSADOR

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BROUGHAM
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1967 AMERICAN MOTORS AMERICAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1974 AMERICAN MOTORS JAVELIN

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1968 AMERICAN MOTORS AMERICAN

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1970 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • Aspiration: N
    • SubModel: DPL
    • Engine Vin: N
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971 AMERICAN MOTORS JAVELIN

    • EngineType: ALL
    • SubModel: AMX

    1971 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: N
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968 AMERICAN MOTORS AMERICAN

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1971-1972 AMERICAN MOTORS JAVELIN

    • CC: 5900
    • Liter: 5.9
    • SubModel: SST
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1966 AMERICAN MOTORS CLASSIC

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 4753
    • Liter: 4.7
    • Aspiration: N
    • SubModel: ROGUE
    • Engine Vin: M
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1968-1969 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969 AMERICAN MOTORS JAVELIN

    • CC: 4753
    • Liter: 4.7
    • Aspiration: N
    • SubModel: SST
    • Engine Vin: N
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1968 AMERICAN MOTORS REBEL

    • Liter: 4.8
    • SubModel: 770
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1973 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1972 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • SubModel: BROUGHAM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS JAVELIN

    • EngineType: ALL
    • SubModel: SST MARK DONOHUE

    1968-1969 AMERICAN MOTORS AMX

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1971 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: SC/360
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1973 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • SubModel: SPORTABOUT
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1978-1979 AMERICAN MOTORS CONCORD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975 AMERICAN MOTORS GREMLIN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970-1973 AMERICAN MOTORS JAVELIN

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1969 AMERICAN MOTORS REBEL

    • Liter: 5.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1968 AMERICAN MOTORS REBEL

    • Liter: 5.6
    • Aspiration: N
    • SubModel: SST
    • Engine Vin: S
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1973 AMERICAN MOTORS AMBASSADOR

    • CC: 6572
    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1968 AMERICAN MOTORS AMERICAN

    • CC: 4753
    • Liter: 4.7
    • Aspiration: N
    • SubModel: ROGUE
    • Engine Vin: M
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1971-1972 AMERICAN MOTORS AMBASSADOR

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BROUGHAM
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970-1971 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1974 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: SPORTABOUT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968 AMERICAN MOTORS REBEL

    • CC: 4753
    • Liter: 4.7
    • Aspiration: N
    • SubModel: 550
    • Engine Vin: M
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 6391
    • Liter: 6.4
    • SubModel: ROGUE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969 AMERICAN MOTORS AMBASSADOR

    • CC: 5585
    • Liter: 5.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1969-1970 AMERICAN MOTORS REBEL

    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1966 AMERICAN MOTORS ROGUE

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1969 AMERICAN MOTORS REBEL

    • Liter: 5.6
    • Aspiration: N
    • SubModel: SST
    • Engine Vin: S
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1972 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • SubModel: SPORTABOUT
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1971 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • SubModel: BROUGHAM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • Aspiration: N
    • SubModel: SST
    • Engine Vin: N
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS REBEL

    • Liter: 5.0
    • SubModel: SST
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1969 AMERICAN MOTORS JAVELIN

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 5585
    • Liter: 5.6
    • SubModel: ROGUE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1971-1972 AMERICAN MOTORS JAVELIN

    • CC: 6572
    • Liter: 6.6
    • SubModel: SST
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1972 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: SPORTABOUT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS JAVELIN

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971 AMERICAN MOTORS AMBASSADOR

    • CC: 6572
    • Liter: 6.6
    • SubModel: DPL
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1974 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • SubModel: SPORTABOUT
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS JAVELIN

    • EngineType: ALL
    • SubModel: SST TRANS AM

    1978-1979 AMERICAN MOTORS PACER

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS AMX

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1974 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968-1969 AMERICAN MOTORS JAVELIN

    • CC: 5585
    • Liter: 5.6
    • SubModel: SST
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1967 AMERICAN MOTORS AMBASSADOR

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1968 AMERICAN MOTORS REBEL

    • CC: 6391
    • Liter: 6.4
    • SubModel: 550
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968 AMERICAN MOTORS JAVELIN

    • CC: 4753
    • Liter: 4.7
    • SubModel: SST
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1968 AMERICAN MOTORS REBEL

    • CC: 5585
    • Liter: 5.6
    • SubModel: 550
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1968 AMERICAN MOTORS AMERICAN

    • CC: 4753
    • Liter: 4.7
    • SubModel: 440
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1968 AMERICAN MOTORS AMBASSADOR

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1970-1971 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: SST
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1979 AMERICAN MOTORS SPIRIT

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1974 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • SubModel: BROUGHAM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 4753
    • Liter: 4.7
    • SubModel: 440
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1970 AMERICAN MOTORS AMBASSADOR

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1968 AMERICAN MOTORS REBEL

    • CC: 6391
    • Liter: 6.4
    • SubModel: 550
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1967 AMERICAN MOTORS AMERICAN

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1969 AMERICAN MOTORS AMBASSADOR

    • CC: 5585
    • Liter: 5.6
    • Aspiration: N
    • SubModel: SST
    • Engine Vin: S
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1970 AMERICAN MOTORS AMX

    • CC: 4982
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS JAVELIN

    • CC: 6391
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968-1969 AMERICAN MOTORS AMX

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1969 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: DPL
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1970 AMERICAN MOTORS REBEL

    • EngineType: ALL
    • SubModel: MACHINE

    1968 AMERICAN MOTORS AMERICAN

    • CC: 4753
    • Liter: 4.7
    • Aspiration: N
    • SubModel: ROGUE
    • Engine Vin: N
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1978-1979 AMERICAN MOTORS AMX

    • CC: 4982
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1972-1973 AMERICAN MOTORS JAVELIN

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: AMX
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS REBEL

    • Liter: 5.9
    • Aspiration: N
    • SubModel: SST
    • Engine Vin: N
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1977 AMERICAN MOTORS HORNET

    • Liter: 5.0
    • SubModel: AMX
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1972-1973 AMERICAN MOTORS JAVELIN

    • CC: 6572
    • Liter: 6.6
    • SubModel: AMX
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1971 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • Aspiration: N
    • SubModel: DPL
    • Engine Vin: N
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1974 AMERICAN MOTORS MATADOR

    • CC: 6572
    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1974 AMERICAN MOTORS MATADOR

    • CC: 4983
    • Liter: 5.0
    • SubModel: X
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1973 AMERICAN MOTORS GREMLIN

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: N
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968-1969 AMERICAN MOTORS JAVELIN

    • CC: 6391
    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1967 AMERICAN MOTORS AMBASSADOR

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1970 AMERICAN MOTORS REBEL

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1974 AMERICAN MOTORS GREMLIN

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 4753
    • Liter: 4.7
    • Aspiration: N
    • SubModel: ROGUE
    • Engine Vin: N
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1970 AMERICAN MOTORS JAVELIN

    • CC: 5900
    • Liter: 5.9
    • SubModel: SST
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968 AMERICAN MOTORS REBEL

    • Liter: 5.6
    • Aspiration: N
    • SubModel: 770
    • Engine Vin: S
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1967 AMERICAN MOTORS MARLIN

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 5585
    • Liter: 5.6
    • SubModel: 440
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1972 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • SubModel: SST
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975-1976 AMERICAN MOTORS MATADOR

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1973 AMERICAN MOTORS MATADOR

    • CC: 6572
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )
    Some parts are not legal for use in California or other states with similar laws / regulations