Weiand Hi-Ram Intake - Chevy Big Block V8

Hi-Ram Intake Manifold 396ci-502ci with Performance Oval Port Heads

PART# 1981

Suggested Retail: $438.95
Your Price:$394.95
Free Shipping on orders over $100*
  • 2 x 4 carburetor top
  • Square flange carburetor mounting
  • 2500-7800 RPM power band
  • Special D-shaped port runner design
  • Large volume plenum
  • Power band: 2800-8000 RPM
  • Height: Front 10.12", Rear 10.93"
  • Port Size: 1.82” height 1.60" width
  • Carb Flange Center-To Center 9-11/16"
HI-RAM SERIES: These tunnel ram manifolds are used primarily in drag racing, tractor/truck pulls and performance marine applications where high RPM performance is required. The effective RPM range is between 2,800 to 8,000 RPM. The WEIAND Hi-Ram, with it's patented D-shaped port runners and large plenum chamber, provides optimum velocity of the air/fuel mixture to the cylinder head intake ports. For maximum performance in a naturally aspirated competition application, the WEIAND Hi-Ram is the manifold of choice! This manifold is designed to be used with performance oval port heads.
Emission Code3
EngineChevy Big Block V8
Front Height10.12 inch
Fuel System TypeCarb
Manifold TypeHi-Ram
Product TypeIntake Manifold
Rear Height10.93 inch
RPM Power Band2800-8000
GM HEI will not clear, Use Side-by-Side 2 x 4 Tunnel Ram Carburetor Linkage Kit # 4022. When using carburetors with vaccum operated secondaries, use Diaphragm Housing Covers # 20-28, for more even and balanced secondary operation.Will fit tall blocks with use of Weiand P/N 8206 manifold spacer plate kit.
1913Weiand Hi-Ram Manifold Top - 2 X 4150 Carbs Top
8206Weiand Manifold Spacer Kit - Chevy Big Block V8
4022Weiand 2 x 4 Carburetor Linkage Kit - Chevy Big Block V8
20-28Cover-Diaphragm Housing
8985Weiand Hi-Ram Intake Manifold Gaskets
5981Weiand Hi-Ram Manifold Runner-Tunnel Ram

This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

*Free Shipping & Handling only offered to the continental US on orders over $100.
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