Holley 4500 LS RACE SP INTAKE CARB LS1 PORTS

The Holley 4500 LS RACE SP INTAKE CARB LS1 PORTS is a high-performance single-plane race intake manifold designed for GM LS Gen III engines with cathedral port heads. Featuring a two-piece split design and a 4500 Dominator style carb flange, it supports carburetors, EFI throttle bodies, or throttle body elbows, making it ideal for 5.3 to 6.2+ liter naturally aspirated or power-adder applications targeting max power at 7500-8000+ RPM.

Key Features

Maximum performance 4500 Dominator flange race design with hood clearance consideration
Lighter than other split race intakes for easier handling
Two-piece split design simplifies porting and modifications
Captured O-ring seals at head ports and plenum split for precise assembly
Vacuum port options: (2) 1/8, (1) 1/4, and (1) 3/8 NPT ports at the carb flange
Available in EFI version with billet fuel rails and mounting hardware or carbureted/Sniper EFI 4500 TBI style
Large volume 4500 plenum and optimized runners for high-RPM airflow potential
Cost-effective, priced at 33 to 50% less than other split race intakes

Fitment

Fits GM LS Gen III engines with cathedral port heads
Designed for 5.3 to 6.2+ liter displacement engines

Note: Verify compatibility with your engine and carburetor or EFI setup before ordering. Installation may require additional tuning and supporting components.