TSP - Holley EFI Single Plane Mid-Rise Intake Manifold, GM LS1/LS2/LS6 - BLACK (26-300-137BK)
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- 2500-7000 RPM power band
- 4150 Square bore flange
- Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM
- Minimum carb flange height - fit in vehicles with minimum hood modifications
- Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS power adder applications
- Efficient casting design - lightweight, consistent wall thicknesses, improved casting quality
- Weight - 11.5 lbs.
- Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange
- Port size - 2.50" height x 1.15" wide
- Includes Viton® O-ring intake to cylinder head gaskets - Viton® is a registered trademark of DuPont Performance Elastomers
- Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219
Brand Holley Emission Code 3 Engine GM LS1/LS2/LS6 Finish Black Front Height 5.417 inch Fuel System Type EFI Manifold Type Mid-Rise Product Type Manifold Rear Height 5.417 inch RPM Power Band 2500-7000