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Holley Hi-Ram Lower Manifold - GM LS7

Part # 300-228

  • Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
  • Runner Length – 6.29”, As-Cast Runner Cross-Sectional Area – Tapered 4.67 in² to 2.84 in²
  • Plenum Top Gasket Type – 3/32” Round O-ring Cord
  • Port Size – 2.49” Height x 1.21” Wide

Description

• Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations

Specifications

Basic Operating RPM Range3500-8000
Carburetor Studs IncludedNo
CNC PortedNo
ColorNatural
ConstructionCast
Cylinder Head Port ShapeRaised Rectangle
Deck Height9.24 in
EGR PortNo
EngineGM LS7
Fuel Injectors IncludedNo
Fuel Rail(s) IncludedNo
Fuel System TypeCarb
Gasket Or Seal IncludedNo
Grade TypePerformance
Intake Port Gasket(s) IncludedNo
MaterialAluminum
Nitrous Bung(s) IncludedNo
Plenum FinishNatural
Removable RunnersNo
Removable Top/LidYes
Single Or Dual Plane TypeSingle Plane
Throttle Body Gasket IncludedNo
Throttle Body IncludedNo
Type of ComponentLower Manifold
UPC / GTIN00090127681732
WarrantyManufacturer's Limited 90 Day Warranty