Product Summary

Chevy Small Block V8, Long Tube Header Tube Type, Steel

  • Fits D-Port cylinder heads including ZZ4 crate engines
  • Does not fit 67-69 Camaro with A/C
  • Will fit most angle plug heads including factory Chevrolet “Bow-Tie” heads
  • Requires removal or modification of locking steering columns if equipped
  • 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 TypeLong Tube
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel

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Speedway Motors 9300110H Details

These long tube headers work with both automatic or manual transmissions in 1964-1989 Chevrolet chassis. Features 1-5/8" primary tubes, 3" collectors, and fits angled or straight plug S/B Chevy oval exhaust port heads. Built with surface machined thick steel flanges for a great seal and mandrel bent mild steel tubing. These headers are a chassis header and are meant to go inside of the frame rails on the 1965-1989 Chevrolet chassis.

Available with metallic ceramic coating. Unlike paint or chrome, metallic ceramic coating is easy to keep clean, resists rust and corrosion and will not discolor. Metallic ceramic coating also reduces underhood temperatures.

Headers come with installation hardware, collector reducers, gaskets and instructions.


Item Details

Armor Hot Coat®


Applications include, but not limited to:

  • 1965-1989 Impala, Caprice, Bel Air, Biscayne
  • 1967-1981 Camaro (except 1967-69 with factory A/C)
  • 1964-1987 Chevelle, Malibu, El Camino
  • 1970-1987 Monte Carlo



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 only

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. 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 9300110H Specifications

MFG. Part #9300110H
BrandSpeedway Motors
Header Tube TypeLong Tube
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel
Collector Diameter3 Inch
FinishCeramic Coated
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Length8.25"
Flange Thickness.30"
Port Height1.7"
Port Width1.41"
Drivers Side Dimension A7.15"
Drivers Side Dimension B16.88"
Drivers Side Dimension C38"
Passenger Side Dimension A5.1"
Passenger Side Dimension B16.88"
Passenger Side Dimension C37"
Sold in QuantityPair
NotesReducers are 3" to 2.50" They are 5.00" long.