Holley Mid-Rise EFI Intake Manifold & Rail Kit, LS1

#9100368

Holley Mid-Rise EFI Intake Manifold & Rail Kit, LS1

Features an optimized runner layout and constant cross sectional area
The minimum carb flange height will fit in vehicles with minimum hood modifications
Has a cast aluminum construction with a natural finish with a weight of just 11.5 lbs

$770.90

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Product Summary

EFI Fuel System Type, Multi-port Injection Style

Features an optimized runner layout and constant cross sectional area
The minimum carb flange height will fit in vehicles with minimum hood modifications
Has a cast aluminum construction with a natural finish with a weight of just 11.5 lbs
It is a great manifold for centrifugal blower, turbocharged or NOS power adder applications
Holley Fuel Rail Kit P/N 534-219 included

Comes as a Kit

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Key Specs

Brand	Holley
Injection Style	Multi-port
Intake Manifold Type	Dual Plane
RPM Range	2,500-7,000
Material Type	Aluminum

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Details

Intake Manifold

Single Plane Mid-Rise EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads.

Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219
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
EFI Fuel Rail Kit included

Charts

Installation Instructions (PDF)

Guides & Documents

Intake Manifolds Installation Instructions (425300137)

Specifications

KEY SPECS
Brand	Holley
Injection Style	Multi-port
Intake Manifold Type	Dual Plane
RPM Range	2,500-7,000
Material Type	Aluminum

GENERAL
Fuel System Type	EFI
Finish	Natural
EGR	No
Cylinder Head Configuration	Cathedral Port
Intake Section Included	Complete
Plenum Material	Aluminum
Plenum Finish	Natural
Throttle Body Included	No
Injectors Included	No
Aftermarket Fuel Rail Required	Yes
Fuel Rails Included	Yes
Overall Height	5.47"
Runners Included	No
Runners Removable	No
Supplemental Bosses Cast-In	No
Supplemental Bosses Machined	No
Sold in Quantity	Kit

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Fitment

1998-2002 Chevy Camaro

GM LS1

1997-2004 Chevy Corvette

GM LS1

1998-2002 Pontiac Firebird

GM LS1

2004 Pontiac GTO

GM LS1