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  • Dynatech   796-01515 All Pro Brodix 12 Header Flanges
    Dynatech 796-01515 All Pro Brodix 12 Header Flanges
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                A great exhaust system starts at the begining - the exhaust manifold flange.  One of Dynatech®s  biggest advantages is the wide selection of port machined flanges.  All the header flanges are CNC laser machined for unparalleled quality and fit. 

    Fits both Alan Johnson heads and All Pro Brodix #12 heads. Flanges are sold individually.

  • Header Flange Plates, Small Block Chevy Brodix Spread Port, 2 Inch
    Header Flange Plates, Small Block Chevy Brodix Spread Port, 2 Inch
    x
                Header flange only, does not include adapter pipe. These exhaust manifold flanges have 2" ports, which allows the use of 1-7/8" and 2" primary tubes.
            
  • Header Flange Plates, Small Block Chevy Brodix Spread Port, 1-3/4 Inch
    Header Flange Plates, Small Block Chevy Brodix Spread Port, 1-3/4 Inch
    x
                Build or modify your own headers with these exhaust manifold flange plates. Header flange only. Does not include adapter pipe or gaskets.
            
  • Small Block Chevy Header Kit, 1-7/8 Brodix Spread Port, 3-1/2 Collector
    Small Block Chevy Header Kit, 1-7/8 Brodix Spread Port, 3-1/2 Collector
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    Save money by welding and assembling your own headers! These small block Chevy header kits will work for many racing and rodding applications. It includes everything you need to assemble a pair of high-quality headers: eight mandrel-bent primary tubes, two pre-formed collectors, two extra-thick standard-port flanges, two gaskets, and 12 header bolts.

    Designed for the seasoned, hands-on enthusiast, this kit will require some cutting, fitting and welding.

    • Thick 5/16" steel flanges
    • Mandrel-bent 18-gauge mild steel tubing
    • Pre-formed 4-into-1 collectors
    • 8" length from longest to tube flange to bend
    • 5" length from shortest tube flnge to the bend
  • Small Block Chevy Header Kit, 1-3/4 Brodix Spread Port, 3-1/2 Collector
    Small Block Chevy Header Kit, 1-3/4 Brodix Spread Port, 3-1/2 Collector
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    Save money by welding and assembling your own headers! These small block Chevy header kits will work for many racing and rodding applications. It includes everything you need to assemble a pair of high-quality headers: eight mandrel-bent primary tubes, two pre-formed collectors, two extra-thick standard-port flanges, two gaskets, and 12 header bolts.

    Designed for the seasoned, hands-on enthusiast, this kit will require some cutting, fitting and welding.

    • Thick 5/16" steel flanges
    • Mandrel-bent 18-gauge mild steel tubing
    • Pre-formed 4-into-1 collectors
    • 8" length from longest to tube flange to bend
    • 5" length from shortest tube flnge to the bend
  • Schoenfeld Straight Tube Sprint Car Headers, 1-7/8, Spread Port
    Schoenfeld Straight Tube Sprint Car Headers, 1-7/8, Spread Port
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    Compared to normal headers, there headers have more than 200 degrees of bends removed to provide better flow and increased horsepower. They're available to fit standard Chevy, Brodix spreadport or All Pro spread-port cylinder heads. Features include laser-cut flanges and 18-gauge primary tubes welded to clear 4" from head to inside tube.

    Primaries are approximately 32" long, with 3-1/2" diameter collectors. Bolts and gaskets included. Bolts directly to your head

    Header Dimension Chart

  • Schoenfeld Straight Tube Sprint Car Headers, 1-3/4 To 1-7/8, Spread Port
    Schoenfeld Straight Tube Sprint Car Headers, 1-3/4 To 1-7/8, Spread Port
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    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets.

    Header Dimension Chart 

  • Schoenfeld Headers 130SP Small Block Chevy Boom Tubes, Spread Port
    Schoenfeld Headers 130SP Small Block Chevy Boom Tubes, Spread Port
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    For late models, IMCA modifieds. Also fits Camaro and Chevelle. Extra-thick flanges, 1-3/4" tubes. 

    Can only be used with Brodix heads, not for use with "normal" small block Chevy. 

    Bolts and gaskets included.  Can only be used with Brodix Heads, not for use with normal S/B chevy.

  • Schoenfeld Straight Tube Sprint Car Headers, 2 In., All Pro Head, 16 In. Cltr.
    Schoenfeld Straight Tube Sprint Car Headers, 2 In., All Pro Head, 16 In. Cltr.
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    These straight tube sprint car headers from Schoenfeld feature an extra long 16 inch collector and come complete with all necessary bolts and gaskets.

    Header Dimension Chart 

    • Over 200 degrees of bends removed for increased flow and 8-10 hp increase.
    • Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads.
    • Laser cut flanges to clear down nozzles.
    • Headers welded to clear 4" from head to inside tube.
    • Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. 
    • Extra long 16 inch collector
    • Comes with bolts and gaskets.
  • Schoenfeld Swept Forward Sprint Headers, 2 Inch, 3-1/2 Cltr, Spread Port
    Schoenfeld Swept Forward Sprint Headers, 2 Inch, 3-1/2 Cltr, Spread Port
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    Swept forward for muffler clearance. Fits Chevy, Brodix Spread Port and now all Pro Spread Port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18 ga. primary tubes and 3-1/2" x 14" collectors, may be shortened. Bolts directly to your head and comes with bolts and gaskets.

    Header Dimension Chart

  • Schoenfeld Straight Tube Sprint Car Headers, 2 Inch, All Pro Head
    Schoenfeld Straight Tube Sprint Car Headers, 2 Inch, All Pro Head
    x
                

    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets. 

    Header Dimension Chart

  • Schoenfeld Straight Tube Sprint Car Headers, 1-7/8 To 2, Spread Port
    Schoenfeld Straight Tube Sprint Car Headers, 1-7/8 To 2, Spread Port
    x
                

    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets. 

    Header Dimension Chart

  • Schoenfeld Swept Forward Sprint Headers, 1-7/8, 3-1/2 Cltr, Spread Port
    Schoenfeld Swept Forward Sprint Headers, 1-7/8, 3-1/2 Cltr, Spread Port
    x
                

    Swept forward for muffler clearance. Fits Chevy, Brodix Spread Port and now all Pro Spread Port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18 ga. primary tubes and 3-1/2" x 14" collectors, may be shortened. Bolts directly to your head and comes with bolts and gaskets.

    Header Dimension Chart

  • Schoenfeld Straight Tube Sprint Car Headers, 1-7/8 To 2, All Pro Head
    Schoenfeld Straight Tube Sprint Car Headers, 1-7/8 To 2, All Pro Head
    x
                

    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets. 

    Header Dimension Chart

  • Schoenfeld Swept Forward Sprint Headers, 1-3/4, 3-1/2 Cltr, Standard Port
    Schoenfeld Swept Forward Sprint Headers, 1-3/4, 3-1/2 Cltr, Standard Port
    x
                

    Swept forward for muffler clearance. Fits Chevy, Brodix Spread Port and now all Pro Spread Port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18 ga. primary tubes and 3-1/2" x 14" collectors, may be shortened. Bolts directly to your head and comes with bolts and gaskets.

    Header Dimension Chart

  • Schoenfeld Swept Forward Sprint Headers, 1-7/8, 3-1/2 Cltr, All Pro Head
    Schoenfeld Swept Forward Sprint Headers, 1-7/8, 3-1/2 Cltr, All Pro Head
    x
                

    Swept forward for muffler clearance. Fits Chevy, Brodix Spread Port and now all Pro Spread Port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18 ga. primary tubes and 3-1/2" x 14" collectors, may be shortened. Bolts directly to your head and comes with bolts and gaskets.

    Header Dimension Chart

  • Schoenfeld Str Tube Sprint Car Headers, 1-5/8 To 1-3/4, Stepped STD Port
    Schoenfeld Str Tube Sprint Car Headers, 1-5/8 To 1-3/4, Stepped STD Port
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    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets. 

    Header Dimension Chart 

  • Schoenfeld Swept Forward Sprint Headers, 1-7/8 - 2, 3-1/2 Cltr, Spread Port
    Schoenfeld Swept Forward Sprint Headers, 1-7/8 - 2, 3-1/2 Cltr, Spread Port
    x
                

    Swept forward for muffler clearance. Fits Chevy, Brodix Spread Port and now all Pro Spread Port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18 ga. primary tubes and 3-1/2" x 14" collectors, may be shortened. Bolts directly to your head and comes with bolts and gaskets.

    Header Dimension Chart

  • Schoenfeld Swept Forward Sprint Headers, 1-7/8 - 2, 3-1/2 Cltr, All Pro Head
    Schoenfeld Swept Forward Sprint Headers, 1-7/8 - 2, 3-1/2 Cltr, All Pro Head
    x
                

    Swept forward for muffler clearance. Fits Chevy, Brodix Spread Port and now all Pro Spread Port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18 ga. primary tubes and 3-1/2" x 14" collectors, may be shortened. Bolts directly to your head and comes with bolts and gaskets.

    Header Dimension Chart

  • Schoenfeld Straight Tube Sprint Car Headers, 1-3/4, Standard Chevy
    Schoenfeld Straight Tube Sprint Car Headers, 1-3/4, Standard Chevy
    x
                

    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets. 

    Header Dimension Chart

  • Schoenfeld Straight Tube Sprint Car Headers, 1-3/4 To 1-7/8, Standard Port
    Schoenfeld Straight Tube Sprint Car Headers, 1-3/4 To 1-7/8, Standard Port
    x
                

    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets. 

    Header Dimension Chart

  • Schoenfeld Straight Tube Sprint Car Headers-2 Inch-Spread Port
    Schoenfeld Straight Tube Sprint Car Headers-2 Inch-Spread Port
    x
                

    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets. 

    Header Dimension Chart 

  • Garage Sale - Alan Johnson, All Pro Brodix 12 Header Flange
    Garage Sale
    Garage Sale - Alan Johnson, All Pro Brodix 12 Header Flange
    x
                

    A great exhaust system starts at the begining - the flange.  One of Dynatech®s biggest advantages is the wide selection of port machined flanges.  All the flanges are CNC laser machined for unparalleled quality and fit.

    Fits both Alan Johnson heads and All Pro Brodix #12 heads. 

     

    These headers are garage sale priced because they are new old stock.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - Header Flange Plates, Small Block Chevy Brodix Spread Port, 1-3/4 Inch
    Garage Sale
    Garage Sale - Header Flange Plates, Small Block Chevy Brodix Spread Port, 1-3/4 Inch
    x
                

    Build or modify your own headers with these exhaust manifold flange plates. Header flange only. Does not include adapter pipe or gaskets.

     

    This is garage sale priced because it is a single flange.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

  • Garage Sale - Brodix 12 1-7/8 Inch Exhaust Flanges
    Garage Sale
    Garage Sale - Brodix 12 1-7/8 Inch Exhaust Flanges
    x
                

    1.78" Tall Ports

    1.87" Wide Ports

    .310" Thick Flanges

    These flanges are garage sale priced because they are new old stock.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - Brodix 2 Inch Spread Port Exhaust Flange
    Garage Sale
    Garage Sale - Brodix 2 Inch Spread Port Exhaust Flange
    x
                

    2.065" Diameter Ports

    .307" Thick Flange

     

    These flanges are garage sale priced because they are new old stock.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - Brodix 12 Square Port Exhaust Flange
    Garage Sale
    Garage Sale - Brodix 12 Square Port Exhaust Flange
    x
                

    1.85" Wide Ports

    1.77" Tall Ports

    .250" Thick

     

    These flanges are garage sale priced because they are new old stock.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - Schoenfeld Straight Tube Sprint Car Headers, 1-7/8 To 2 Inch, Spread Port
    Garage Sale
    Garage Sale - Schoenfeld Straight Tube Sprint Car Headers, 1-7/8 To 2 Inch, Spread Port
    x
                

    Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets. 

    Header Dimension Chart

     

    These headers are garage sale priced because they are scuffed and dented from shipping. 

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - SBC Spread Port Boom Tubes
    $139.99
    $169.99
    Garage Sale
    Garage Sale - SBC Spread Port Boom Tubes
    x
                

    For late models, IMCA modifieds. Also fits Camaro and Chevelle. Extra-thick flanges, 1-3/4" tubes. 

    Bolts and gaskets included.  Can only be used with Brodix Heads, not for use with normal S/B chevy.

     

    These headers are garage sale priced because they are scratched and the tubes are not all round.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS