Holley 300-269 GM LS7 EFI Intake Manifold, Single-Plane, Square Bore, Single Plane, Aluminum, Natural, Kit

$448.10
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SKU:
HLY300-269
MPN:
300-269
UPC:
90127069660
Condition:
New
Weight:
18.65 LBS
Shipping:
Calculated at Checkout

Applies To Continental U.S. orders only

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Single Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS7 cylinder heads. Designed with a 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 The manifold kit includes the fuel rails, mounting hardware, and o-ring cylinder head mounting flange gaskets.
 
Features:
  • 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 mild 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 and bellhousing flange
  • Port size - 2.33" height x 1.27" wide
  • Includes FKM o-ring intake to cylinder head gaskets

Notes: Includes fuel rails, mounting hardware, and O-ring cylinder head mounting flange gaskets. The included fuel rails are designed to accept Bosch Style EV-1 or GM OE LS7 fuel injectors.

Instructions

Instructions - 199r11701.pdf

Emissions Warning
Federal and State regulations may restrict Product installation to pre-regulation (Model Year 1974 or earlier), or “Competition,” or “Racing” Vehicles. Competition or Racing Vehicles may be operated exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and
3) practice associated with events.
Installation of such restricted Products in Model Year 1975 and later street driven Vehicles, including driving Competition or Racing Vehicles to the racetrack, is likely to be considered illegal “Tampering” or a “Defeat Device” subject to U.S. Federal and State penalties

Engine Block Style:
Stock/OEM standard deck
Style:
Single plane/Multi-port
Basic Operating RPM Range:
2,500-7,000
Material:
Aluminum
Finish:
Natural
Height:
5.417 in.
Intake Section Included:
Complete
Fuel Rails Included:
Yes
Aftermarket Fuel Rail Required:
No
Carburetor Quantity:
One
Carburetor Mounting:
4-barrel square bore
Throttle Body Bore Size:
N/A
Has Bosses:
No
Bosses Machined:
No
Boss Quantity:
N/A
Injectors Included:
No
Throttle Body Included:
No
EGR:
No
Quantity:
Sold as a kit.
Notes:
Designed to fit LS7 style cylinder heads. This manifold will not work with factory fuel rails.
Make:
Chevrolet
Engine Family:
Chevy small block Gen III/IV (LS-based engines)
Engine Sizes:
7.0L/427
Years:
2006-2015
Cylinder Head Style:
LS7 style cylinder heads