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  • Speedway Adjustable Small Block Chevy IMCA Headers
    Speedway Adjustable Small Block Chevy IMCA Headers
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    Get your Modified breathing better and making maximum power for less money with Speedway adjustable IMCA headers. The stepped header design has adjustable-length primaries to allow for power tuning and variances in engine and foot box location. Adjustable pipe length allows you to shorten headers to work better on longer tracks, or leave pipes long for optimum performance on short tracks.

    • Quality construction with plain steel finish
    • All the features of more expensive headers, without the high price tag
    • Adjustable-length primary pipes for performance tuning
    • Pipe length can be adjusted for foot box and engine location
    • Fits IMCA Modifieds with a S/B Chevy standard exhaust port pattern
    • Includes gaskets and header bolts
    • 60-degree turnout on driver's side
    • 90-degree turnout on passenger side

    Header Dimension Chart

  • Speedway Small Block Chevy IMCA Headers, AHC Coated
    Speedway Small Block Chevy IMCA Headers, AHC Coated
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                These small block Chevy IMCA headers fit most IMCA modified chassis. They can be run  upside down to gain clearance and are a good choice for tracks requiring  mufflers. These AHC coated headers are for standard port S/B Chevy heads. Gaskets and bolts included.
    • For small block Chevy heads
    • AHC ceramic coating helps reflect heat and prevent rust
    • Withstands exhaust temperatures up to 1300 deg.F
    • 1-3/4" primaries
    • 3-1/2" collector
    • Fits most IMCA type modified chassis
    • Includes gaskets and header bolts

    Header Dimension Chart

  • Speedway Small Block Chevy IMCA Headers
    Speedway Small Block Chevy IMCA Headers
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    Speedway Motors saves you money with our new headers! Available for Small Block Chevy (SBC).  Includes gaskets and header bolts.

    Header Dimension Chart

  • Right Crash Replacement IMCA Mod. Header, 1.75 In., Small Block Chevy
    Right Crash Replacement IMCA Mod. Header, 1.75 In., Small Block Chevy
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    Right hand side crash replacement Modified headers for Dirt Works, Champion, Hot, Pro, Impressive, Lightning, D&M, Hoffman and Shaw.

    Tube Size: 1.750

    Application: Small Block Chevy  

  • Schoenfeld Headers 161V Small Block Chevy High Veloctiy IMCA Headers
    Schoenfeld Headers 161V Small Block Chevy High Veloctiy IMCA Headers
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    Races are won by the guy who gets off the corner best. Torque is what gets your car moving, and the right header is one key ingredient in developing race-winning torque. These high-velocity headers from Schoenfeld are designed to boost torque, and will fit standard-port Small Block Chevy V8s in IMCA-type chassis.

    • High-velocity stepped header design engineered to boost torque
    • Quality construction
    • Gaskets and bolts included

    Header Dimension Chart

  • Schoenfeld Small Block Chevy IMCA Headers, 1-5/8 Primary, 3 Inch Collector
    Schoenfeld Small Block Chevy IMCA Headers, 1-5/8 Primary, 3 Inch Collector
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    These S/B Chevy IMCA headers fit most IMCA modified chassis. Can be run upside down to gain clearance. Good choice for tracks requiring mufflers. For standard port S/B Chevy heads. Gaskets and bolts included. 

    Header Dimension Chart

  • Schoenfeld Small Block Chevy IMCA Headers, 1-3/4 Primary, 3-1/2 Collector
    Schoenfeld Small Block Chevy IMCA Headers, 1-3/4 Primary, 3-1/2 Collector
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    These S/B Chevy IMCA headers fit most IMCA modified chassis. Can be run upside down to gain clearance. Good choice for tracks requiring mufflers. For standard port S/B Chevy heads. Gaskets and bolts included. 

    Header Dimension Chart

  • Schoenfeld Headers Small Block Chevy Adjustable IMCA Long Headers
    Schoenfeld Headers Small Block Chevy Adjustable IMCA Long Headers
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    S/B Chevy adjustable IMCA headers feature a long primary stepped header, 1-5/8" - 1-3/4" S/B Chevy.  3" collector.  One 90° turnout and one 60° turnout.

    Adjustable length to allow for engine and/or footbox location, as well as power band tuning.  Includes gaskets and bolts for headers.

    Header Dimension Chart

     

  • Speedway IMCA U-Weld-It Header Kit, Small Block Chevy
    Speedway IMCA U-Weld-It Header Kit, Small Block Chevy
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                Speedway Motors saves you money with our new U-Weld-It headers! These header kits are perfect for building your own custom headers on small block Chevy applications. They feature 1-3/4" primaries and 3/8" thick oval port flanges. 
    • S/B Chevy
    • Includes 2 flanges, 8 primary tubes, and 2 collectors
    • 1-3/4" primary tubes
    • 3-1/2" collectors
    • 3/8" thick Oval port flange
    • Raw steel finish
    • Same fit as our classic 910-13162 Speedway IMCA Headers
  • Schoenfeld 11619H IMCA Sport Modified Headers
    Schoenfeld 11619H IMCA Sport Modified Headers
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                These IMCA Sport Modified headers are designed for use with Harris, Shaw, Skyrocket, and Victory style chassis. They feature 1-5/8" primaries with 3" x 8" collectors and bolt to standard port Chevy heads.
    • 1-5/8" tube diameter
    • 3 x 8" collector
    • Standard Chevy flange
    • Bolts and gaskets included
    Fits:
    • Harris
    • Shaw
    • Skyrocket
    • Victory

    Header Dimension Chart

  • Harris Small Block Chevy Adjustable IMCA Long Headers
    Harris Small Block Chevy Adjustable IMCA Long Headers
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    S/B Chevy adjustable IMCA headers feature a long primary stepped header, 1-5/8" - 1-3/4" S/B Chevy.  3" collector.   Two 90° turnouts, Standard port.

    Adjustable length to allow for engine and/or footbox location, as well as power band tuning.  Includes gaskets and bolts for headers.

    Header Dimension Chart

  • Left Side Crash Replacement IMCA Mod. Header, 1-5/8 Inch, Small Block Chevy
    Left Side Crash Replacement IMCA Mod. Header, 1-5/8 Inch, Small Block Chevy
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    Left hand side crash replacement headers for IMCA Modified design.

    Tube Size: 1.625"

    Application: Small Block Chevy

  • Schoenfeld 1101 Small Block Chevy IMCA Modified Headers, 1-5/8 Inch
    Schoenfeld 1101 Small Block Chevy IMCA Modified Headers, 1-5/8 Inch
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    These S/B Chevy IMCA headers fit Harris, Hoffman, Hughes and others. They have longer primaries for maximum torque and horsepower.  Bolts and gaskets included.

    • Fits Harris, Hoffman, Hughes, and other popular chassis
    • Longer primaries for maximum torque and horsepower
    • Bolts and gaskets included
    • 1-5/8"
  • Left Side Crash Replacement IMCA Mod. Header, 1-3/4 Inch, Small Block Chevy
    Left Side Crash Replacement IMCA Mod. Header, 1-3/4 Inch, Small Block Chevy
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    Left hand side crash replacement headers for Modified design for GRT, Kosiski, Smileys and TRE.

    Tube Size: 1.75"

    Application: Small Block Chevy  

  • Right Crash Replacement IMCA Mod. Header, 1-3/4 In., Small Block Chevy
    Right Crash Replacement IMCA Mod. Header, 1-3/4 In., Small Block Chevy
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    Right hand side crash replacement headers for Modified design for GRT, Kosiski, Smileys and TRE.

    Tube Size: 1.75"

    Application: Small Block Chevy  

  • Left Side Crash Replacement IMCA Mod. Header, 1-3/4 Inch, Small Block Chevy
    Left Side Crash Replacement IMCA Mod. Header, 1-3/4 Inch, Small Block Chevy
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    Left hand side crash replacement Modified headers for Dirt Works, Champion, Hot, Pro, Impressive, Lightning, D&M, Hoffman and Shaw.

    Tube Size: 1.750

    Application: Small Block Chevy  

  • Schoenfeld Small Block Chevy Chassis Headers, 1-7/8, 3-1/2 Collector
    Schoenfeld Small Block Chevy Chassis Headers, 1-7/8, 3-1/2 Collector
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                These S/B Chevy chassis headers are for cars with engine set back 2-3/4" to 5".  #1 spark plug must be behind the ball joint.  Fully tuned pipes kept high for clearance.  3-1/2" collector.  Fits Shaw, Bullitt, Howe, WRC, GRT, NASCAR Late Model - most IMCA modifieds.  S/B Chevy.  Fits angle plug heads.  Includes gaskets and header bolts. 

    Races are won by the guy who gets off the corner best. Torque is what gets that car moving and the right header is one key ingredient. High velocity headers are designed to boost torque.

    Specs Chart (GIF)

  • Schoenfeld Small Block Chevy Chassis Headers, 1-5/8, 3 Cltr, Equal Lt
    Schoenfeld Small Block Chevy Chassis Headers, 1-5/8, 3 Cltr, Equal Lt
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                These S/B Chevy chassis headers are for cars with engine set back 2-3/4" to 5".  #1 spark plug must be behind the ball joint.  Fully tuned pipes kept high for clearance.  3 or 3-1/2" collector.  Fits Shaw, Bullitt, Howe, WRC, GRT, NASCAR Late Model - most IMCA modifieds.  S/B Chevy.  Fits angle plug heads.  Includes gaskets and header bolts. 

    Races are won by the guy who gets off the corner best. Torque is what gets that car moving and the right header is one key ingredient. High velocity headers are designed to boost torque.

    Specs Chart (GIF)

  • Schoenfeld Small Block Chevy Chassis Headers, 1-5/8, 3 Collector
    Schoenfeld Small Block Chevy Chassis Headers, 1-5/8, 3 Collector
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                These S/B Chevy chassis headers are for cars with engine set back 2-3/4" to 5".  #1 spark plug must be behind the ball joint.  Fully tuned pipes kept high for clearance.  3" collector.  Fits Shaw, Bullitt, Howe, WRC, GRT, NASCAR Late Model - most IMCA modifieds.  S/B Chevy.  Fits angle plug heads.  Includes gaskets and header bolts. 

    Races are won by the guy who gets off the corner best. Torque is what gets that car moving and the right header is one key ingredient. High velocity headers are designed to boost torque.

    Specs Chart (GIF)

  • 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 Small Block Chevy Boom Tube Headers, Standard Port
    Schoenfeld Small Block Chevy Boom Tube Headers, Standard Port
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    These S/B Chevy boom tubes are for Late Models, IMCA Modifieds. Also fits Camaro and Chevelle. Extra-thick flanges. 1-3/4" primary tubes. For standard port Chevy heads.

    Header Dimensions (GIF)

     

  • Weiand 7547-1 IMCA Approved Small Block Chevy Manifold
    Weiand 7547-1 IMCA Approved Small Block Chevy Manifold
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    You can now run the 7547-1 Weiand X-CELerator in the IMCA Stock Car and Sport Mod classes. This aluminum intake has the common Holley 4150 4 bbl bolt pattern and fits the 1957-86 S/B Chevy 262-400 iron heads and 1987-Later GM factory aluminum heads.

    With an effective rpm range of 2000 to 6500 rpm, this intake works best with a higher compression ratio, 280° or more of cam duration and headers with 1-5/8” primary tubes. The Weiand X-CELerator Series is the ultimate performance manifold for single 4V applications where increased torque and power is required in the mid and high rpm ranges.

    IMCA Approved - Intake has IMCA Racing logo behind carb mounting pad.

    • 360° Single Plane
    • Open Plenum
    • Square Carburetor Mounting Flange
    • IMCA Approved
    • Power band: 2500-7000 RPM

    805-75471 Instructions (PDF)

  • Right Side Crash Replacement IMCA Modified Header, 1.75-1.875 Inch Stepped
    Right Side Crash Replacement IMCA Modified Header, 1.75-1.875 Inch Stepped
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    Right hand side crash replacement Modified headers for Harris, Skyrocket, Hughes, Victory, BMS, J Car, Jet and Sardeson.

    Tube Size: 1.750-1.875

    Application: Small Block Chevy 

  • Left Side Crash Replacement IMCA Modified Header, 1.75-1.875 Inch Stepped
    Left Side Crash Replacement IMCA Modified Header, 1.75-1.875 Inch Stepped
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    Left hand side crash replacement Modified headers for Harris, Skyrocket, Hughes, Victory, BMS, J Car, Jet and Sardeson.

    Tube Size: 1.750-1.875

    Application: Small Block Chevy 

  • Schoenfeld 1101VCM-3 Small Block Chevy Long Tube Headers, 1-5/8 - 1-3/4 Inch
    Schoenfeld 1101VCM-3 Small Block Chevy Long Tube Headers, 1-5/8 - 1-3/4 Inch
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    This chevy crate motor header fits Harris, Hoffman, Hughes and others. Longer primaries for maximum torque and horsepower. 1-5/8" - 1-3/4" stepped design. Bolts and gaskets included.

    • Fits Harris, Hoffman, Hughes, and other popular chassis
    • Longer primaries for maximum torque and horsepower
    • Bolts and gaskets included
    • 1-5/8"- 1-3/4" stepped design
    • IMCA modified

     

  • Right Side Crash Replacement Pierce Modified Chevy Header, 1-3/4 - 1-7/8 Inch
    Right Side Crash Replacement Pierce Modified Chevy Header, 1-3/4 - 1-7/8 Inch
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    Right hand side crash replacement headers for Pierce Modified design.

    IMCA Modified Header 

    Tube Size: 1.750"-1.875"

    Application: Small Block Chevy   

  • Left Side Crash Replacement Modified Chevy Header, 1-3/4 Inch
    Left Side Crash Replacement Modified Chevy Header, 1-3/4 Inch
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    Left hand side crash replacement Modified Header for Harris, Skyrocket, Hughes, Victory, BMS, J Car, Jet and Sardeson.

    IMCA Modified Header 

    Tube Size: 1.750"

    Application: Small Block Chevy   

  • Right Side Crash Replacement Modified Chevy Header, 1-3/4 Inch
    Right Side Crash Replacement Modified Chevy Header, 1-3/4 Inch
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    Right hand side crash replacement Modified Header for Harris, Skyrocket, Hughes, Victory, BMS, J Car, Jet and Sardeson.

    IMCA Modified Header 

    Tube Size: 1.750"

    Application: Small Block Chevy   

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