Holley Single Plane Split-Design Race Intake Manifold- GM LS1/LS2/LS6

Product Code: 300-256

£584.13 EX VAT

£700.96 INC VAT

Product Overview:

All of our Holley orders are done once a week from USA, if you need it sooner please contact us prior to ordering. Complete delivery may take up to 14 days.

Carbureted single plane split-design race intake manifold. Fits all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads

More Information

Product Details Specification Delivery & Returns

Product Details

The new Holley Single-Plane Race intake manifold were designed with performance in mind. They feature a race bred, two piece split feature that was previously only found on the most expensive race intakes. The manifold will fit GM LS Gen III engines with cathedral port heads and are intended for 4150 style square bore flanged carburetors or throttle body EFI.

The LS Race single-plane intake manifold was designed for hi-performance/racing engine applications, 5.3 to 6.2+ liter displacement, and maximum engine speeds of 6000-7000 rpm, depending on the engine combination. This single-plane design provides optimal performance across the RPM spectrum while providing maximum performance up to 7000 rpm.

The Holley LS Race manifold incorporates a split feature, which allows disassembly of the intake for direct access to internal plenum and port surfaces, making custom porting and matching a snap. With shoulder bolt locators and O-ring seal, reassembly is simple and precise.

Technical Data:

 A-B Height - 7.32" (0° carb flange angle)

 Port Size- 3.28" Height x 1.10" Wide

 Carburetor Flange - Standard 4150 for up to 1-3/4" diameter throttle bores

 As-Cast Runner Cross-Sectional Area - 3.5 in² at the runner entry tapered to 2.9 in² at the flange exit

Features:

Maximum performance race design with hood clearance consideration
Lighter than other split race intakes
Split feature making porting efforts easy!
33 to 50% the price of other split race intakes
Captured O-ring seals at head ports and split
Vacuum Port options include (2) 1/8, (1) 1/4, and (1) 3/8, NPT ports at the carb flange

Specification

Barrels	4
Brand	Holley
Color	Silver
Construction	Cast
Emission Code	3
Engine	GM LS1/LS2/LS6
Finish	Satin
Flange Style	4150 Square Bore
Front Height	7.32"
Fuel System Type	Carb
Manifold Type	Split Single Plane
Product Type	Manifold
Rear Height	7.32"
RPM Power Band	2500-7000
Warranty	Limited 90 Day
Part Number	300-256

Delivery & Returns

Billy's Speed Shop ensures the highest standard of service. Therefore we use only most reliable delivery services in the UK what allows us to provide you quick and efficient delivery of your products.

We aim to stock all of the products in our warehouse. However the situation may occur that we currently do not have particular item in stock then we will order it directly from UK supplier. If delivery time will exceed 3 days we will inform you via email or telephone.

Our Delivery Options are as follows:

Parcels up to 2kg and up to £50 of value are being sent via Royal Mail - 1st or 2nd class.
Parcels up to 2kg and £50 - £100 of value are being sent via Royal Mail - 1st or 2nd class - Tracked.
Parcels over 2kg and over £100 of value are being sent via Courier - DPD Tracked.
Bulk or Heavy purchases that weigh over 20 kg are sent on a pallet - Pallex.