Radium Catch Can Kit, PCV, GM LS2/LS3/LS7 Engine, Fluid Lock

Radium Catch Can Kit, PCV, GM LS2/LS3/LS7 Engine, Fluid Lock

Application: GM LS2, LS3, LS7 Gen IV engines
Part Type: PCV catch can kit
Part Number: 20-0785-FL

Starting in 2004 with the Gen IV LS engines, GM replaced the PCV valve with a 2.5mm fixed orifice. A PCV valve promotes negative crankcase pressure, prevents boost pressure entering the crankcase and, in a backfire, stops combustible vapours igniting in the crankcase.

This kit improves the Gen IV LS crankcase ventilation system: the catch can runs inline between the included PCV valve and the intake manifold, mounted on a bracket at the front RH side of the cylinder head. Because the OEM 2.5mm orifice is restrictive, a baffled oil cap is included to draw as much blow-by from the crankcase as possible. The Fluid Lock can stops the reservoir overfilling and holds collected fluid until emptied.

Key Features

• Gen IV Specific: Restores a PCV valve and adds a baffled oil cap for better crankcase evacuation
• Mounting: Front RH side of the cylinder head
• Wet or Dry Sump: Compatible with both wet and dry sump engines
• Fluid Lock Design: Radium's patented Fluid Lock mechanism stops the reservoir overfilling and holds collected fluid until it is emptied, so contaminants can't spill back into the intake
• Large Ports: 10AN ORB inlet and outlet ports with a 4AN ORB drain port
• Efficient Separation: 2-step oil separation baffling
• Easy Checking: O-ring sealed dipstick shows how much fluid has been collected
• Capacity: 207ml (7 fl oz)
• Direct Fitment: No drilling required

What's Included

• Baffled oil catch can with integrated condenser and dipstick
• Anodised aluminium mounting bracket
• Anodised aluminium PCV valve
• Anodised aluminium baffled oil cap
• SAE quick connect fittings
• Stainless steel mounting hardware
• 3/8" PCV rubber hose
• Spring clamps
• Rubber caps

Optional Parts

• Radium Fluid Lock Catch Can Kit - GM LS V8 Engines (20-0260-FL) – use this kit instead for Gen III LS1 / LS6 engines
• Radium Catch Can Petcock Drain Kit (20-0024) – drain the can without removing the reservoir, where there is room underneath

Important Notes

• Make sure your engine has clearance in the catch can mounting area before ordering – some setups with extra belt-driven accessories (such as an aftermarket supercharger) may not be compatible
• For Gen III LS1 and LS6 engines use 20-0260-FL instead
• On wet sump engines (e.g. LS3) the baffled oil cap sits above the RH engine cover; on dry sump engines (e.g. LS7) it sits underneath
• There is no fixed emptying interval – check the dipstick after 3–4 weeks of driving and repeat as needed (PCV cans generally collect more than CCV cans)
• Empty by unscrewing the lower reservoir, or fit the optional Petcock Drain Kit where there is room under the can
• Excessive oil collection can indicate an engine problem such as excessive blow-by, an overfilled sump, poor breather port placement/baffling or a PCV valve leaking under load
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• GM LS2 Gen IV engine
• GM LS3 Gen IV engine
• GM LS7 Gen IV engine

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.