Name: Single Plane LS1 Intake Manifold
Brand: Holley
SKU: 300-137
Price: 424.95 USD
Availability: InStock

Single Plane EFI LS Intake Manifold. Fits all GM LS engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads. 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, turbocharger or NOS 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

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

Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs!

My Cart

Single Plane LS1 Intake Manifold

Customers Also Purchased These Related Items

About

Help

My Account

Contacts