COMPATIBILITY

• Scroll to the kit details below for compatibility lists for each kit

OVERVIEW

The catch can draws out oil and water condensation from the crankcase gasses that would otherwise be drawn into the intake manifold. This prevents oil buildup in the intake, intercooler system walls, throttle body, and intake manifold. This effectively raises the octane, can increase engine performance from cleaner inlet air, and can lower hydrocarbon emissions. The closed system prevents unwanted oil vapors from entering into the cabin. Catch can kits include everything needed for a complete installation.

FLUID LOCK® CATCH CANS

In 2022, Radium Engineering implemented a revolutionary design change to the 7 fluid ounce standard catch can. An inherent problem always existed with typical catch cans when not serviced regularly. The fluid contaminants will eventually leave the reservoir pouring into the air intake system causing poor engine performance. To resolve this issue, Radium created the Fluid Lock® Catch Can. This contains a patented mechanism that prevents the reservoir from overfilling and traps the collected fluids until it is emptied.

FEATURES

• Direct fitment with no drilling required
• Large 10AN ORB inlet and outlet ports
• 4AN ORB drain port
• 2-step oil separation baffling
• O-ring sealed dipstick
• 7 fluid ounce capacity
• Patented Fluid Lock® system

COLLECTION & EMPTYING

The rate that your catch cans will collect oil and moisture contaminants will vary from one individual vehicle to the next, so there is no set emptying interval. PCV catch cans tend to collect more than CCV catch cans. You should check the level of your catch can using the integrated dipstick starting at 3-4 weeks of driving and repeat as needed to determine how often they should be emptied based on what you see.

Catch cans can be emptied by unscrewing the lower reservoir and removing it from the vehicle to dump out, or in cases where there is available space under the catch can, the Petcock Drain Kit can be installed and used to drain them.

In cases where oil collection is excessive you may have to address an issue with the engine. The reasons a catch can will collect an excess of oil include

• Excessive blowby from engine damage
  
• Crankcase windage from an over-full oil level
• Poor placement of breather ports and/or poor baffling inside breather ports
  
• PCV valve not closing and leaking under heavy load

	20-0785-FL CATCH CAN KIT, PCV, GM LS2/LS3/LS7 ENGINE, FLUID LOCK The anodized aluminum catch can bracket mounts to the front RH side of the cylinder head.  COMPATIBILITY 05-07 Corvette (LS2) 06-13 Corvette Z06 (LS7) 08-13 Corvette (LS3) 10-13 Corvette GS (Wet Sump LS3) 10-13 Corvette GS (Dry Sump LS3) 2013 Corvette 427 (LS7) NOTES: 1. Because alternator placement, 20-0785-FL is not compatible with ZR1 (LS9). However, 20-0786-FL is compatible. 2. For fitment on an LS3, the factory Helmholtz airbox resonator must be either removed or an LS7 intake must be installed. 3. Use 20-0260-FL instead for the LS1 and LS6 C5 Chevrolet Corvettes. Starting in 2004 with the Gen IV LS engines, General Motors replaced the PCV valve with a 2.5mm fixed orifice. This move was, presumably, to save production costs and eliminate a serviceable part.  NOTE: A PCV valve serves a few purposes in the crankcase; promote negative pressure and prevent boost pressure. Also, in the event of a backfire, the PCV valve prevents combustible vapors from igniting in the crankcase. The PCV catch can kit improves the performance of the Gen IV LS crankcase ventilation system. The catch can runs inline between the PCV valve and the intake manifold. When the intake manifold pressure is close to or greater than atmospheric pressure, the PCV 'check' valve closes and, thus, this hose experiences no flow. Conversely, the PCV hoses will experience 'metered' vacuum when the engine is idling, steady state cruising, and decelerating. This would normally draw unwanted crankcase vapor, unspent fuel, and oil sludge into the intake manifold immediately after a high load run. Because the OEM 2.5mm orifice port is restrictive, a replacement baffled oil cap is included to draw as much blowby from the crankcase as possible. Shown below is an A/T Grand Sport Corvette LS3 install. Notice how the baffled oil cap hose routes above the RH engine cover on wet sump engines. Shown below is an Z06 Corvette LS7 install. Notice how the baffled oil cap hose routes underneath the RH engine cover on dry sump engines. This PCV catch can kit is compatible with both wet and dry sump engines. It also compatible with the OEM engine cover. INCLUDES Baffled oil catch can with integrated condenser and dipstick Anodized aluminum mounting bracket Anodized aluminum baffled oil cap Anodized aluminum PCV valve SAE quick connect fittings Stainless mounting hardware   3/8" PCV rubber hose  Spring clamps Rubber caps
	20-0786-FL CATCH CAN KIT, CCV, 05-13 CORVETTE, FLUID LOCK The anodized aluminum catch can bracket mounts to the RH hood latch. COMPATIBILITY 05-07 Corvette (LS2) 06-13 Corvette Z06 (LS7) 08-13 Corvette (LS3) 09-13 Corvette ZR1 (LS9) 10-13 Corvette GS (Wet Sump LS3) 10-13 Corvette GS (Dry Sump LS3) 2013 Corvette 427 (LS7) To retain factory functionality, the CCV catch can runs inline between the crankcase vent (CCV) port and the intake pipe. At low loads, this catch can experiences atmospheric pressure. However, when the engine is at high load (WOT), these vents will experience high flow out of the crankcase. This would normally lead to oil and sludge accumulation in the air filter intake pipe.  This catch can kit is compatible with the dry sump LS3, LS7, and LS9. As shown below, the crankcase vent comes from the reservoir on these engines. This catch can kit is also compatible with the standard wet sump LS2 and LS3. Note the different direction of the catch can top port fitting below. The catch can kit is also compatible with the OEM engine cover. INCLUDES Baffled oil catch can with integrated condenser and dipstick Anodized aluminum mounting bracket SAE quick connect fittings Stainless mounting hardware 3/8 PCV rubber hose Spring clamps
	20-0787-FL DUAL CATCH CAN KIT, 05-13 CORVETTE, FLUID LOCK The anodized aluminum catch can bracket mounts to the front RH side of the cylinder head.  COMPATIBILITY 05-07 Corvette (LS2) 06-13 Corvette Z06 (LS7) 08-13 Corvette (LS3) 10-13 Corvette GS (Wet Sump LS3) 10-13 Corvette GS (Dry Sump LS3) 2013 Corvette 427 (LS7) NOTE: Because alternator placement, the dual catch can kit is not compatible with ZR1 (LS9). This dual catch can kit includes both the PCV and CCV catch can kits for the ultimate in engine protection. Shown below is a wet sump LS3 engine. Shown below is a dry sump LS7 engine. These kits are compatible with the OEM engine cover (shown below with the cover off). INCLUDES Baffled oil catch cans with integrated condenser and dipstick Anodized aluminum mounting brackets Anodized aluminum baffled oil cap Anodized aluminum PCV valve SAE quick connect fittings Stainless mounting hardware 3/8 PCV rubber hose Spring clamps Rubber caps