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Chevrolet Big Block 396-454 (2.25" Round Port) Exhaust Flange
Chevrolet Small Block 265-400 Exhaust Flange
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Chevrolet Big Block 396-454 (2.25" Round Port) Exhaust Flange
Chevrolet Small Block 265-400 Exhaust Flange
Home Products Tube Size 2.25" Chevrolet Big Block 396-454 (2.25″ Round Port) Exhaust Flange
Chevrolet Early 6 cyl 216-261 Swept Lake Header Kit $249.00
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Buick Nailhead 364-425 Exhaust Flange
Buick Nailhead 364-425 Exhaust Flange $62.00 – $152.00

Chevrolet Big Block 396-454 (2.25″ Round Port) Exhaust Flange

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SKU: 001-0060 Categories: 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 2.25", 396, 400, 427, 454, Chevrolet, Exhaust/Header Flanges, Flanges
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Description

Includes one pair of exhaust flanges for the Big Block Chevrolet 396, 400, 427, 454 Round Port hot rod motor (see motor applications below).  These flanges are cut with a CNC HD (High Definition) Plasma cutter out of 3/8” Pickled and Oiled (P&O) steel.  P&O material is hot rolled steel that has been dipped in acid to remove the mill scale and then a light coated lightly with oil.  The end result is less work to clean off the mill scale as needed with hot rolled mild steel.

 

Motor Application:

Big Block Chevrolet

            396 cu. in (1965-96)

            400 cu in (1965-96)

            427 cu in (1965-96)

            454 cu in (1965-96)

            *more applications/years may work, verify before purchasing.

 

Ports designed to be used with 2 1/4” round exhaust tubing.  

 

These flanges are designed in CAD and are test fit to make sure proper fitment is achieved. 

Additional information
Weight 8 lbs
Dimensions 20 × 4 × 4 in
Stubbed Flange

No – Flange Only, Yes – Stubbed Flange

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  • Categories
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  • CHASSIS/SUSPENSION
    • COMPLETE CHASSIS
    • RIDE CONTROL
    • SUSPENSION KITS
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  • DRILL GUIDES
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    • ACCESSORY DRIVES
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  • EXHAUST KITS & ACCESSORIES
    • LAKE HEADER KITS
      • HEADER KITS (U-WELD)
        • STRAIGHT LAKE HEADER KITS
        • SWEPT LAKE HEADER KITS
    • LAKE HEADER ACCESSORIES
      • DUMP TUBES & TURNOUTS
      • LAKE HEADER CAPS & BLOCKOFFS
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    • FORMED MERGE COLLECTORS
    • MEGAPHONES
  • FLANGES
    • CARBURETOR FLANGES
      • 1 BARREL
      • 2 BARREL
      • 4 BARREL
    • COLLECTOR/UNIVERSAL FLANGES
      • 3-BOLT COLLECTOR FLANGES
    • EXHAUST/HEADER FLANGES
    • INTAKE FLANGES
    • ONE-PIECE EXHAUST/INTAKE FLANGES
    • TURBO FLANGES
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    • FULL-WELDED INTAKES
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