Since 1955, Harrop has engineered and manufactured world-class performance products for a diverse range of applications. Whether it is original equipment for Ford, Holden, Lotus or category 1 motorsport such as F1, NASCAR & V8 Supercars, or our proprietary aftermarket performance products, our reputation is legendary.

Given the thirst from enthusiasts for more power, Harrop has developed our most extreme LSA Performance System. 

Harrop Stage 5 delivers ultimate performance to LSA HSV owners through the addition of CNC ported cylinder heads to the popular Stage 4 package. Stage 5 is a burger with the lot, including Harrop’s efficient Cold-Air-Induction system, high flow injectors, smaller diameter drive and larger diameter balancer pulleys to create higher boost pressures, Harrop Performance H02 Camshaft Kit, Stainless Steel 4 into 1 long tube headers, catalytic converters and full exhaust system integrated with a custom ECU recalibration to increase LSA engine output to 600 kW and 1120 Nm.

Key Features:

• 600 kW / 1120 Nm ( Standard 400 kW / 671 Nm )
• CNC Ported LSA Cylinder Heads
• Harrop H02 camshaft kit - (Other grinds available)
• Harrop Cold-Air Induction System
• High Flow Injectors
• Supercharger drive pulley
• Powerbond balancer and overdrive pulley assembly
• 160 degree thermostat
• LSA Solid Coupling 
• 1 ⅞" Stainless Steel 4 into 1 long tube headers
• Hi-Flow Catalytic converters 
• Harrop 3" Stainless Steel Cat-Back exhaust system (Factory Bi-Modal options available)
• Harrop ECU Recalibration

Vehicle Applications:

• HSV Gen-F & Gen-F2, LSA models only