Product Summary

Chevy Small Block V8, Chassis Header Tube Type, Steel

  • For '78-'88 Chevelle, Monty Carlo, Grand Prix, Cutlass and Regal
  • Use solid side or rear mounts
  • Fits angle or straight plug heads, standard port only
  • Must use short oil filter
  • Armor Hot Coat® is a Speedway Motors custom ceramic heat proof coating that will keep the finish of these headers looking great for years to come

Key Specs

Header Tube TypeChassis
FinishCeramic Coated
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel

Need To Know

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Speedway Motors 91013185H Details

These headers are a great “Bang for the Buck.” These Small Block Chevy street stock headers are designed for use with 1972-1987 Malibu, Monte Carlo, Grand Prix, Cutlass and Regal. Also fits a 1970-1981 Camaro.

  • Can use solid side or rear mounts
  • Clears side and rear engine mounts (motor must be in stock location)
  • Will fit straight or angle plug heads
  • Will not clear stock manual clutch linkage ball or air condition box
  • Must use short oil filter such as WIX 51069, AC PF24, or FRAM PH30



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¢ª 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.

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Speedway Motors 91013185H Specifications

MFG. Part #91013185H
BrandSpeedway Motors
Header Tube TypeChassis
FinishCeramic Coated
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel
Exhaust Port ShapeOval
Collector Diameter3 Inch
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedNo
Collector Length8.25"
Flange Thickness.36"
Port Height1.66"
Port Width1.38"
Header Dimension A4.500"
Header Dimension B18.250"
Header Dimension C30.000"
Drivers Side Dimension A4.35"
Drivers Side Dimension B17"
Drivers Side Dimension C29.63"
Passenger Side Dimension A5"
Passenger Side Dimension B16.35"
Passenger Side Dimension C33.38"
Sold in QuantityPair
NotesThese should work along with hydraulic bearings or slave cylinders for cluch release. Will also work with both straight or angle plug heads.
Bolts Studs IncludedNo
Gaskets IncludedNo
Motor Mounts IncludedNo
Transmission Mount IncludedNo