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Cast Iron Exhaust Manifolds for GM Gen III, IV LS Engines [Natural Finish]
InfoVehicle Info Needed
FLOWTECHPART NUMBER: 387-11730FLT

Cast Iron Exhaust Manifolds for GM Gen III, IV LS Engines [Natural Finish]

$27595
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Exhaust Manifolds for GM Gen III/IV LS Engines, Flange-Type Collector [Natural Finish]

555-30140

Exhaust Manifolds for GM Gen III/IV LS Engines, Flange-Type Collector [Natural Finish]

$31999

Natural Finish
Cast Iron Exhaust Manifolds
  • GM Gen III, IV LS Engines
  • 1 3/4 in. Primary Tube Diameter
  • 2 1/4 in. Outlet Diameter
  • 2-Bolt Exit Flange
  • Nickel Plated Steel Mating Flanges
  • High-Silicone Moly Ductile Iron
  • Natural Finish

    Dimensions

    FlowTech 11730FLT Cast Iron Exhaust Manifolds:

    • Stay close to the engine for multiple chassis applications
    • Less underhood noise than headers
    • Uses factory or aftermarket gaskets and fasteners
    • Includes nickel plated steel mating flanges

    FlowTech 11730FLT Cast Iron Exhaust Manifolds Note:

    • Not compatible with 2004-2006 Pontiac GTO starters and bellhousings

    Emissions Note:

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

      • Exhaust Manifolds that Stay Close to the Engine

      FlowTech GM LS Swap Exhaust Manifolds will fit multiple GM Gen III and IV LS engine swaps and exhaust configurations with their short block hugging design.

    Part TypeExhaust Manifold
    Product LineFlowTech GM LS Swap Exhaust Manifolds
    BrandFLOWTECH
    Package Height6.3
    Package Width14.5
    Package Length22.0
    Weight29.6 PG
    Part CategoryPerformance Parts
    Collector Attachment2-bolt flange
    Exhaust Manifold Gaskets IncludedNo
    QuantitySold as a pair
    Mounting Hardware IncludedNo
    Exhaust Manifold MaterialHigh silicon ductile iron
    Engine Make/SizeGM LS GEN III & IV
    Exhaust Manifold FinishNatural
    Vendor Part Number11730FLT
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

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    Some parts are not legal for use in California or other states with similar laws / regulations
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