Product Summary

Chevy Small Block V8, Carbureted Fuel System Type

  • Has an RPM range of 2000 to 6500 rpm
  • it is IMCA approved and has the logo behind carb mounting pad
  • Designed to fit the 1957-1986 Small Block Chevy 262-400 iron heads and 1987-Later GM factory aluminum heads
  • Intake works best with a higher compression ratio, 280° or more of cam duration and headers with 1-5/8” primary tubes
  • Engineered to be the ultimate performance manifold for single 4V applications where increased torque and power is required in the mid and high rpm ranges

Key Specs

MFG. Part #7547-1
Intake Manifold TypeSingle Plane
Material TypeAluminum

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Weiand 7547-1 Details

 This Weiand X-CELerator manifold was specifically designed with the IMCA racer in mind. It is fully legal for use in IMCA Stock Car and Sportmod Competition!

This manifold is part of the Weiand Nostalgia Series of intake manifolds. Weiand Nostalgia Series intake manifolds are made using the original tooling, and may have minor appearance imperfections that do not affect the functionality of the part. These minor blemishes are a natural part of the casting process when using the original sand casting tooling.
Weiand Nostalgia series intakes are proudly cast and machined in the USA.
We support all areas of the vintage, show, and nostalgia car hobby, and want to continue to produce these lower volume manifolds using the original tools. There is no need to search for that vintage intake at swap meets or on the internet when you can buy the real deal new from Weiand!

IMCA Approved - Intake has IMCA Racing logo behind carb mounting pad.

  • Single Plane
  • Square Carburetor Mounting Flange
  • IMCA Approved
  • Power band: 2500-7000 RPM
  • Height: Front 3.09", Rear 4.06"
  • Port Size: 1.85” height 1.15" width
  • Weiand Nostalgia Series Intake Manifold



  • Carb Recommendations:  650 - 750 CFM Holley HP
  • Manifold height @ front:  3.09"
  • Manifold height @ rear:  4.06"
  • Port size:  1.85” height x 1.15” width

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.

Weiand 7547-1 Specifications

MFG. Part #7547-1
Intake Manifold TypeSingle Plane
Material TypeAluminum
Fuel System TypeCarbureted
Carburetor QuantityOne
Carburetor Flange Type4-Barrel Square Bore
Intake Section IncludedComplete
Plenum MaterialAluminum
Plenum FinishNatural
Overall Height4.06"
Port Height1.85"
Port Width1.15"
Bolt Hole Pattern5.160" x 5.625"
Sold in QuantityEach
NotesWeiand reccommends a 650-750 CFM carb.
GTIN Code090127597873