Product Summary

Chevy Small Block V8, Carbureted Fuel System Type

  • Designed to work with 265-400 Small Block Chevy V8's from '55-'86
  • Integrated 2-barrel 4-blot carburetor flange
  • Cast aluminum construction
  • Strategically placed oil filler hole
  • Will NOT work with HEI distributor

Key Specs

MFG. Part #3558

Need To Know

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Offenhauser 3x2 tri-power manifold for 265-400 Small Block Chevy. Carb mount stud pattern is 1-7/8" x 3-1/4" (small base Rochester).

  • Hole in front to accept an oil fill tube
  • HEI distributor will not fit

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.


MFG. Part #3558
Fuel System TypeCarbureted
Intake Manifold TypeDual Plane
Carburetor QuantityThree
Carburetor Flange Type2-Barrel 4-Bolt
Material TypeAluminum
Intake Section IncludedComplete
Sold in QuantityEach
NotesAccepts 3-1/4" x 1-7/8" small base Rochester carbs. HEI will not fit.