Product Summary

Chevy Small Block V8, Chassis Header Tube Type, Steel

  • Designed to fit most IMCA modified chassis running a Small Block Chevy Engine
  • Can be run upside down to gain clearance
  • Ideal choice for tracks requiring mufflers
  • Will work with standard port S/B Chevy heads
  • Collector diameter measures 3-1/2" and they are 8" in length

Key Specs

MFG. Part #162
Header Tube TypeChassis
FinishTemporary Paint
Material TypeSteel

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These S/B Chevy IMCA headers fit most IMCA modified chassis. Can be run upside down to gain clearance. Good choice for tracks requiring mufflers. For standard port S/B Chevy heads. Gaskets and bolts included. 

1-3/4" Primary, 3-1/2" Collector



Guides & Documents

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.


MFG. Part #162
Header Tube TypeChassis
FinishTemporary Paint
Material TypeSteel
Flange StyleStandard
Primary Tube Diameter1-3/4"
Exhaust Port ShapeSquare
Collector Diameter3-1/2 Inch
Collector Length8"
Flange Thickness.25"
Port Height1.67"
Port Width1.53"
Header Dimension A19.75"
Header Dimension B8.63"
Header Dimension C18.25"
Hardware IncludedYes
Gasket(s) IncludedYes
Sold in QuantityPair
Collector Attachment TypeSlip fit
Collector Reducers IncludedNo