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1955-1957 Small Block Chevy Chassis Headers, AHC Coated

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Specs
Material Type:
Steel
Sold in Quantity:
Pair
Finish:
AHC Coated
Tube O.D.:
1.63
Port Height:
1.66
Port Width:
1.38
Flange Thickness:
.35
Flange Style:
Oval Port
Collector Diameter :
2.50
Gasket(s) Included:
Yes
Hardware Included:
Yes
Drivers Side Dimension A:
5.35
Drivers Side Dimension B:
15.20
Drivers Side Dimension C:
21.00
Passenger Side Dimension A:
6.50
Passenger Side Dimension B:
14.25
Passenger Side Dimension C:
22.75
Collector Length:
4.00
Garage Sale:
No
Header Tube Type:
Chassis
Notes
Includes a pair of reducers (2.50" to 2.25")
1955-1957 Small Block Chevy Chassis Headers, AHC Coated1955-1957 Small Block Chevy Chassis Headers, AHC Coated1955-1957 Small Block Chevy Chassis Headers, AHC Coated
1955-1957 Small Block Chevy Chassis Headers, AHC Coated

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Watch the video below to learn more about Speedway Motors Armor Hot Coat (AHC)

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1955-1957 Small Block Chevy Chassis Headers, AHC Coated

Please NOTE the following about this product:

  • This item is sold as a set.

Details

Reviews

Q & A

What's in the Box

These Speedway headers allow you to keep the exhaust system under your '55-'57 Chevy car. The "3/4-length" design provides more ground clearance than full-length headers, yet makes more power than "shorty" style headers. These chassis headers fit 283-400 S/B Chevy V8s and has 1-5/8" primary tubes with 2-1/2" collectors. These ceramic coated headers provide superior performance and durability.

  • Mid-length design offers maximum ground clearance
  • Designed to work with stock or 605 power steering box
  • Fits cars using an original V-8 pitman arm (some aftermarket arms may cause an interference)
  • Will work with side engine mounts with engine in stock location
  • Fits standard and Vortec-style small-block Chevy heads (not D-port, LT-1 or ZZ-4)
  • Does not work with stock clutch linkage
  • (Please use the chart below to help with dimensions.) Drivers side A dimension is 3-1/2" up by the head and 5-5/8" at the collector, B dimension is 15", and C dimension is 21".  Passenger side A dimension is 4" at the head and 6-5/8" at the collector, B is 15", and C is 21". 

    Dimension Chart (GIF)

NOTE:  These headers do not fit angle-plug heads. They do work with a "605"steering box.  They work with most any bellhousing and most any motor mounts.  Some aftermarket starters may be in the way.  Designed to fit cars using an original V-8 pitman arm.  Some aftermarket arms may cause an interference.

Notes

Armor Hot Coating (AHC) is a heat resistant, ceramic coating applied to the outside of the header. This coating will reflect heat, which helps retain more heat within the header tube while simultaneously speeding up the exhaust flow. Not only will this coating help you make more horsepower, it also keeps your headers rust-free, looking great, and lasting longer (when properly maintained).  If you are looking for a show-quality finish for your headers, this is it! Our AHC will withstand exhaust temperatures of up to 1300®® F. 

Specs


Warranties

AHC Warning: AHC coatings will burn and be damaged at exhaust temperatures over 1300 degrees. A lean fuel mixture can generate exhaust temperatures exceeding 1700-1900 degrees. If the coating is damaged due to a lean condition, the coating will not be warranted, but can be recoated for a fee.

Not legal for sale or use in California on pollution controlled vehicles

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  • Mid-length design offers maximum ground clearance
  • Designed to work with stock or 605 power steering box
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  • Will work with side engine mounts with engine in stock location
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    Dimension Chart (GIF)

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  • Fits cars using an original V-8 pitman arm (some aftermarket arms may cause an interference)
  • Will work with side engine mounts with engine in stock location
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    Dimension Chart (GIF)

Chrome Warning: Due to a revised chroming process brought on by recent EPA regulations and high labor costs, today's chrome is not the quality of days gone by. Be Aware: Exhaust components which are chrome plated are now much more susceptible to blueing, blistering, peeling & corrosion. No warranty or returns on chrome exhaust items once them have been installed.

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These Speedway headers allow you to keep the exhaust system under your '55-'57 Chevy car. The "3/4-length" design provides more ground clearance than full-length headers, yet makes more power than "shorty" style headers. These chassis headers fit 283-400 S/B Chevy V8s and has 1-5/8" primary tubes with 2-1/2" collectors.

  • Mid-length design offers maximum ground clearance
  • Designed to work with stock or 605 power steering box
  • Fits cars using an original V-8 pitman arm (some aftermarket arms may cause an interference)
  • Will work with side engine mounts with engine in stock location
  • Fits standard and Vortec-style small-block Chevy heads (not D-port, LT-1 or ZZ-4)
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Dimension Chart (GIF)

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1955-1957 Chevy Manual Steering Pitman Arm
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Purple Metal Polish
                        

Just the thing you need to maintain the shine and luster on coated headers.

The Original Purple Metal Polish has been specially formulated for EASABILITY, DURABILITY, and a SUPER HIGH QUALITY SHINE.  It contains a superior abrasive along with Hi-tech cleaners and sealers to SAFELY CLEAN, SHINE and PROTECT all metal surfaces WITHOUT SCRATCHING.   Also excellent for removing light scratches on plexiglass, bug screens and plastic lens covers.  12 fl. oz.

  • Works excellent on coated headers
  • Aluminum
  • Brass
  • Copper
  • Chrome
  • Silver
  • Stainless
  • Removes most blueing from pipes and headers

 

Extreme Exhaust Gaskets, Small Block Chevy, 1-5/8 Inch Oval Port
                        
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