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

$518.13
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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

Out of stock

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:
  • 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
  • 2500-7000 RPM power band
  • Weight - 11.5 lbs.
  • 4150 Square bore flange
  • Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange and bellhousing flange
  • Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM
  • Port size - 2.33" height x 1.27" wide
  • Includes FKM o-ring intake to cylinder head gaskets
  • Minimum carb flange height - fit in vehicles with minimum hood modifications

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
Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and3) practice associated with events.
Installation
 of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering ” or as “defeat device”, and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.

Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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
Throttle Body Bore Size:
4-barrel square bore
Fuel Rails Included:
Yes
Aftermarket Fuel Rail Required:
No
Has Bosses:
Yes
Bosses Machined:
Yes
Boss Quantity:
Eight
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