Holley 300-277 Small Block Ford Intake Manifold, Square Bore, Single Plane, Rectangle Port, Aluminum, Natural, Each

$379.52
MSRP: $418.00
(You save $38.48 )
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SKU:
HLY300-277
MPN:
300-277
UPC:
90127119310
Condition:
New
Weight:
16.00 LBS
Shipping:
Calculated at Checkout

Applies To Continental U.S. orders only

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The new single plane intake manifolds are designed to provide a broad RPM powerband for high-performance street/strip engine applications to a maximum engine speed of 7500 RPM. The carbureted manifold has a 4150 flange to work with all mechanical secondary square bore carburetors. These intake manifolds are designed to accept most stock hardware and accessory brackets, but offer performance features like better plenum and runner geometry for improved charge airflow. The isolated design of the air/fuel passages helps to increase charge air density and performance.
 
The intake manifolds are designed for use with 289-347 cubic inch Small Block Ford engines with a 8.2" deck height.

Features:

  • Single plane design with isolated plenum for cooler charge air temperatures
  • 4150 square bore mounting flange
  • Power band: 2500-7500 RPM
  • Height: front 5.58”, rear 6.40”
  • Port size: 1.82” height, 1.04” width
  • Extra material allows for porting to 2.00” height, 1.20” width
  • Accessory ports under the carburetor in 1/8 NPT, 1/4 NPT and 3/8 NPT sizes

Instructions

Instructions - 199r12045.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
Basic Operating RPM Range:
2,500-7,500
Material:
Aluminum
Finish:
Natural
Height:
6.400 in.
Intake Section Included:
Complete
Throttle Body Bore Size:
4-barrel square bore
Has Bosses:
No
Bosses Machined:
No
Boss Quantity:
N/A
EGR:
No
Quantity:
Sold individually.
Notes:
Extra material allows for porting to 2.00 in. height, 1.20 in. width. Accessory ports under the carburetor in 1/8 NPT, 1/4 NPT and 3/8 NPT sizes.
Make:
Ford
Engine Family:
Ford small block Windsor
Engine Sizes:
4.7L/289-5.7L/347
Years:
1963-2001
Cylinder Head Style:
Rectangular port