Product Summary

Chevy Small Block V8, Block Hugger Header Tube Type

  • These small block Chevy tight fit headers work well on early hot rods with narrow frame widths due to the slim 4" distance from the flange to outermost point
  • 1-5/8" primary tubes and 2-1/2" collectors aid in fitting tight clearance applications
  • AHC coating (ceramic coating) ensures long lasting good looks while also reducing under hood temperatures
  • Oval exhaust ports fit stock small block Chevy heads - will not clear angle plug heads
  • 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 TypeBlock Hugger
Exhaust Port ShapeOval
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel

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Speedway Motors 9300101H Details

These Armor Hot Coat® small-block Chevy tight fit headers are the most universal steel tube headers available. These performance headers fit difficult applications where space is limited. They are a favorite for street rods, as well as many 1950s and 1960s cars and vintage trucks. These ceramic coated headers provide superior performance and durability.

Tight Tuck headers are the solution to many problems associated with engine swaps in modern street rods. Tight Tucks fit in the tightest of engine compartments and clear all stock motor mounts. Most headers are manufactured from durable 16-gauge tubing and comes complete with gaskets, header bolts and collector reducers.

  • Most tight fit header applications require the use of Accel shorty spark plugs
  • Round port
  • Compact design
  • Will NOT fit angle plug heads
  • Includes reducers, gaskets and bolts
  • Armor Hot Coat®


  1. Can be used with most oil filter systems and transmission/starter combinations.
  2. Will not fit '55-'57 Chevy cars, Camaros, or other modern vehicles which have a crossmember below the engine's center two exhaust ports.
  3. Will not clear a "clam shell" style motor mount (found on 1973-newer Chevy cars & trucks).



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 9300101H Specifications

MFG. Part #9300101H
BrandSpeedway Motors
Header Tube TypeBlock Hugger
Exhaust Port ShapeOval
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel
Collector Diameter2-1/2 Inch
FinishCeramic Coated
Collector Attachment Type3-bolt flange
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedYes
Collector Reducer Exit Diameter2.25"
Flange Thickness.35"
Port Height1.63"
Port Width1.41"
Header Dimension A3.75"
Header Dimension B10.00"
Header Dimension C9.25"
Sold in QuantityPair
NotesWill not clear angle plugs. IF DESIRED TO CONTINUE WITH 2.50" OUTLET,SELECT: 447H7239,OR 447H7242, OR 42511026HKR