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1955-1957 Small Block Chevy Chassis Headers, AHC Coated
1955-1957 Small Block Chevy Chassis Headers, AHC Coated

1955-1957 Small Block Chevy Chassis Headers, AHC Coated

Chevy Small Block V8, Chassis Header Tube Type, Ceramic Coated, Oval Port Flange Style, Steel

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1955-1957 Small Block Chevy Chassis Headers, AHC Coated
1955-1957 Small Block Chevy Chassis Headers, AHC Coated
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Part # UP93571
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.


Header Tube Type:
Ceramic Coated
Flange Style:
Oval Port
Primary Tube Diameter:
Material Type:
MFG. Part #:
Collector Diameter:
2-1/2 Inch
Collector Length:
Flange Thickness:
Port Height:
Port Width:
Drivers Side Dimension A:
Drivers Side Dimension B:
Drivers Side Dimension C:
Passenger Side Dimension A:
Passenger Side Dimension B:
Passenger Side Dimension C:
Hardware Included:
Gasket(s) Included:
Sold in Quantity:
Includes a pair of reducers (2.50" to 2.25")


These are garage sale priced because they have some scratches.

No Warranty, No Returns on Garage Sale Items    


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.

The use of a shorty spark plug may aide in clearance between the plug wire and header primary tubes.


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. 


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

Some parts are not legal for use in California or other states with similar laws/regulations

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Q & A

  • Maintaining your headers is an important part of any hot rod. Pat gives some tips and demonstrates how well Purple Metal Polish works for keeping your headers looking great.
  • Wouldn't it be nice to get the best of both worlds out of your headers? Speedway Motors has solved that problem with our exclusive heat resistant Armor Hot Coating. Now you can keep that great look with longer life.
  • Pat shows that exhaust can make a difference on even your daily driver. Check out this video of Pat with the Hooker Muffler installed on his '03 Suburban.
  • Our Tru-Ram Exhaust Manifolds are one of our most popular items. Tim provides more details about them and gives you a great look at them.

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