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FlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLT

FlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLT
FlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLTFlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLT
$384.99 ea
NEWARRIVING SOONEstimated Ship Date 03/13/2025 (If Ordered Today)93 Available from HOLLEY PERFORMANCE PRODUCTS as of 02/22/2025
Model: 4006350
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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These Flowtech cast iron exhaust manifolds have a 2.25-inch outlet, natural cast finish, and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget-friendly price. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance.
Features:
  • Intended for GM LS engine swap applications where durability and leak-free sealing is desired at a budget-oriented price
  • Nickel plated steel mating flanges included (mating flange fasteners are not included)
  • 2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • 2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of factory gaskets and fasteners if desired, for an original quality seal and fitment
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance

Downloads:

Download Name File Size
199r11993.pdf332.03KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Fitment Notes
Chevrolet Blazer Base 1973 - 1974 LS Swap; 2-Wheel Drive Vehicles
Chevrolet C10 Pickup Base 1963 - 1974 LS Swap
Chevrolet C10 Pickup Base 1967 - 1972 LS Swap; 2WD
Chevrolet C10 Big Ten 1978 - 1980 LS Swap
Chevrolet C10 Cheyenne 1975 - 1981 LS Swap
Chevrolet C10 Custom Deluxe 1975 - 1980 LS Swap
Chevrolet C10 Custom 1975 - 1986 LS Swap
Chevrolet C10 Deluxe 1981 LS Swap
Chevrolet C10 Scottsdale 1975 - 1986 LS Swap
Chevrolet C10 Silverado 1975 - 1986 LS Swap
Chevrolet C20 Pickup Base 1967 - 1972 LS Swap
Chevrolet El Camino Base 1964 - 1987 LS Swap
Chevrolet El Camino Conquista 1978 - 1986 LS Swap
Chevrolet El Camino Custom 1968 - 1972 LS Swap
Chevrolet El Camino Royal Knight 1979 - 1981 LS Swap
Chevrolet El Camino SS 1968 - 1987 LS Swap
Chevrolet K10 Pickup Base 1973 - 1974 LS Swap
Chevrolet K10 Cheyenne 1975 - 1981 LS Swap
Chevrolet K10 Custom Deluxe 1975 - 1980 LS Swap
Chevrolet K10 Custom 1981 - 1986 LS Swap
Chevrolet K10 Deluxe 1981 LS Swap
Chevrolet K10 Scottsdale 1975 - 1986 LS Swap
Chevrolet K10 Silverado 1975 - 1986 LS Swap
Chevrolet K5 Blazer Base 1976 LS Swap; 2-Wheel Drive
Chevrolet K5 Blazer Cheyenne 1975 - 1980 LS Swap; 2-Wheel Drive
Chevrolet K5 Blazer Custom Deluxe 1975 - 1980 LS Swap; 2-Wheel Drive
Chevrolet K5 Blazer Custom 1981 - 1982 LS Swap; 2-Wheel Drive
Chevrolet K5 Blazer Deluxe 1981 LS Swap; 2-Wheel Drive
Chevrolet K5 Blazer Silverado 1978 - 1982 LS Swap; 2-Wheel Drive
Chevrolet V10 Custom Deluxe 1987 LS Swap
Chevrolet V10 Scottsdale 1987 LS Swap
Chevrolet V10 Silverado 1987 LS Swap
GMC C15/C1500 Pickup Base 1967 - 1972 LS Swap
GMC C25/C2500 Pickup Base 1967 - 1972 LS Swap
GMC Caballero Amarillo 1981 - 1986 LS Swap
GMC Caballero Base 1978 - 1987 LS Swap
GMC Caballero Conquista 1981 LS Swap
GMC Caballero Diablo 1978 - 1987 LS Swap
GMC Caballero Laredo 1978 - 1980 LS Swap
GMC Caballero Royal Knight 1981 LS Swap
GMC Jimmy Base 1973 - 1982 LS Swap; 2-Wheel Drive Vehicles
GMC Jimmy High Sierra 1975 - 1982 LS Swap; 2-Wheel Drive Vehicles
GMC Jimmy Sierra Classic 1975 - 1982 LS Swap; 2-Wheel Drive Vehicles
GMC Jimmy Sierra Grande 1975 - 1982 LS Swap; 2-Wheel Drive Vehicles
GMC Jimmy Street Coupe 1978 - 1982 LS Swap; 2-Wheel Drive Vehicles
GMC K15/K1500 Pickup Base 1973 - 1974 LS Swap
GMC K15 Base 1975 - 1978 LS Swap
GMC K15 High Sierra 1975 - 1978 LS Swap
GMC K15 Indy Hauler 1977 LS Swap
GMC K15 Sierra Classic 1975 - 1978 LS Swap
GMC K15 Sierra Grande 1975 - 1978 LS Swap
GMC Sprint Base 1971 - 1972 LS Swap
GMC Sprint Custom 1972 LS Swap
GMC V1500 Base 1987 LS Swap
GMC V1500 High Sierra 1987 LS Swap
GMC V1500 Sierra Classic 1987 LS Swap

Specifications:

Application Multi-fit
Bolt Size M8 x 1.25 x 25mm, M8 x 1.25 x 25mm
Choose Your Part Manifold
Collector Diameter 2.25 inch
Emission Code 8
Engine GM Small Block Gen III/IV (LS Based)
Exhaust Manifold Style Standard Swap
Finish Natural
Header Style Manifold
Material Cast Iron
Part Type Exhaust Manifold
Primary Tube Dia. 1-3/4 inch
Product Type Manifold
Proposition 65 www.P65Warnings.ca.gov
Subframe Stock
Tube Material Cast Iron
Type of Component Manifold

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