![Cast Iron Exhaust Manifolds for GM Gen III, IV LS Engines [Black Ceramic Finish]](https://www.jegs.com/images/mini_750/300/387/387-31730-3flt.jpg)
FLOWTECHPART NUMBER: 387-31730-3FLT
Cast Iron Exhaust Manifolds for GM Gen III, IV LS Engines [Black Ceramic Finish]
$38295
2 left in stockBlack Ceramic Finish
Cast Iron Exhaust ManifoldsGM 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 Black Ceramic Finish
FlowTech 31730-3FLT 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 31730-3FLT 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
Part TypeExhaust Manifold
BrandFLOWTECH
Package Height9.0
Package Width12.0
Package Length21.0
Weight32.0 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 FinishBlack Ceramic
Vendor Part Number31730-3FLT
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations




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