Direct Fit for Gen III & IV LS Engines

This universal kit works with virtually all Gen III & IV LS-family engines. This single kit includes everything needed to accommodate the both the OEM quick-connect fittings found on later Gen IV engines as well as push-on barb connections found on earlier Gen III engines. See the Applications section at the bottom of this page for more details.

The kit includes custom lines and a billet aluminum bracket that bolts directly to the LEFT cylinder head (driver's side head on LHD cars). This will only fit engines that have any interfering accessory drive components removed (power steering pump or alternator on most vehicles). The evap system must also have been deleted. Perfect for engine swaps where the left cylinder head mount location is available.

Why Install a Catch Can?

GM's LS family small block engines often expel large amounts of oil and oil mist into the intake manifold. Most intake manifolds we have dismantled are coated in excess engine oil. This results in excessive carbon build-up on the intake valves and reduces the octane of the air/fuel mixture, affecting horsepower.

While carbon build up will not ruin your engine, it will result in reduced performance in the long run, so it's important to keep the air as clean as possible. Adding a good catch can to the crankcase ventilation system will help reduce this carbon build up to keep your engine cleaner and running smoothly.

An Improved Oil Catch Can

Improved Racing set out to design the best air-oil separating catch can we possibly could. We focused on a three simple design goals:

1. Maximize efficiency: Separate as much vapor from crankcase blow-by fumes as possible with minimal restriction.
2. Easy to use: The catch can should be simple and enjoyable to use in every aspect including mounting, draining, and cleaning.
3. Durable: Virtually indestructible. Made from high-quality, reliable components. As with any Improved Racing product, nothing will vibrate loose or come apart under racing conditions.

The result is the CCS (Catch Can, Sport).

Highly Efficient Air-Oil Separation

The CCS's design maximizes air-oil separation efficiency, resulting in a peak separation efficiency of 85-90%. For comparison, none of the competitor's catch cans we tested showed a peak efficiency of more than 60%. These results were achieved on our bench testing system at air flow rates of 0-4.0 CFM and vaporized oil injection rates of 0.20-0.30 grams of oil per minute.

No Sight Glass Needed

Improved Racing's quick-release reservoir is so easy to remove that it eliminates the need for a sight glass. Just push up and twist an 1/8th turn to remove the reservoir and look inside. No more fumbling or endless unscrewing to remove the reservoir.

No sight glass also means improved durability at higher operating temps. And no more trying to interpret a difficult-to-read sight glass to check your fluid level. Just look inside!

A powerful wave spring keeps the reservoir locked in place. A safety lock clip is also included just in case you want to be absolutely sure the reservoir cannot be removed.

LS Specific Left Cylinder Head Mounting Bracket

Improved Racing's CNC-machined LS specific mounting bracket can be mounted only to the left cylinder head (driver's side on LHD cars). It will only fit engines where any interfering accessory drive components have been removed (typically the alternator or power steering pump). Because it's not chassis specific, this kit is the perfect solution for some LS engine swaps.

Fast & Versatile Mounting Bracket System

We made the mounting bracket easy to use and remove because some engines bays are tight. Remove the can in seconds by unscrewing the green nut. Installing and positioning is just as quick and easy. If you need a little more leverage, just use a 5/8" or 16mm open end wrench on one of the nut's lobes.

Positive Lock Safety Clip

The CCS comes with a safety lock clip. It's peace of mind for crash protection or track events where a positive lock mechanism is required. Push to insert, pull to remove.

We also include a lanyard that tethers to any of the mounting bracket screws, so you will never lose your lock clip in your engine bay.

Modular Design & Optional Remote Draining

Improved Racing's latest generation CCS oil catch cans feature a modular design with a removable bottom cap. The modular design allows for thinner walls, reducing overall mass and overall height while maintaining the same fluid capacity.

Don't worry about leaks! The bottom cap is securely fastened with a retaining clip, so there is no risk of it coming unscrewed and leaking.

Tight engine bay? No problem: the bottom cap is easily removed and swapped for a an optional cap with a drain port (sold spearately) for remote draining.

We offer a remote drain kit which includes the replacement bottom cap with drain port, a stainless steel drain valve, hose and fittings (part number CCS-DKB-06). You can also purchase the bottom cap on its own (part number CCS-26-KIT).

Extensive Testing

Development of the CCS happened over several years and included ANSYS Fluent CFD simulations, extensive bench tests, and on-vehicle street and track tests. Final prototype testing also included a 9-month beta testing program in collaboration with various road racers, drag racers, and drifters.

Comparative testing included Improved Racing's prototypes and several catch cans from leading competitors. We ensured our catch can will beat the competition in filtration performance while maintaining a similar or lower pressure drop. Bench testing focused on maximizing efficiency at peak blow-by air flow rates of 3.7-4.0 CFM, where most other catch cans lack efficiency. The chart below (click to enlarge) shows some of our bench test results. Proprietary information and competitor's names have been redacted.

Applications

• Universal fitment on LEFT cylinder head on all Chevrolet Gen III and IV LS family engine blocks (including Vortec iron blocks) with the following properties:
  • Must not have accessory drive systems mounted on left cylinder head. Typically, this means you don't have a power steering pump or alternator on your left cylinder head.
  • Evap system must be deleted. This kit uses the intake manifold evap vacuum port (5/16" quick connect) located on the LEFT side of the intake manifold. This means that you must have deleted the evap system so that this port is available. See the port circled in the photo below. We include a silicone vacuum cap to plug the vacuum port on the right side of the intake manifold.
    
  • Application Note: Engines with PCV line connection from the valve cover to the intake manifold (most 1997-2002 engines) will require splicing into the factory PCV line or upgrading to the newer style valley cover.
  • Application Note: Engines with an external PCV valve (most 1997-2004 engines) will require splicing the PCV valve into the new line or adding a restrictor in place of the PCV valve.
• Fits the following vehicles, subject to the requirements and limitations in the bullet points above:
  • 1998-2002 Chevrolet Camaro SS & Z28 / Pontiac Trans-Am
  • 1997-2004 Chevrolet Corvette (C5), all models
  • 2004-2006 Pontiac GTO / Holden Monaro & Statesman
  • 2004-2014 Cadillac CTS-V
  • 2005-2013 Chevrolet Corvette (C6), all models
  • 2005–2008 Pontiac Grand Prix GXP
  • 2006–2009 Chevrolet Impala SS
  • 2006–2007 Chevrolet Monte Carlo SS
  • 2008–2009 Buick LaCrosse Super
  • 2008-2009 Pontiac G8 GT & GXP, Holden VE Commodore
  • 2010-2015 Chevrolet Camaro SS & ZL1
  • 2011-2017 Chevrolet PPV Caprice, Holden VF Commodore
  • 2013-2017 Chevrolet SS, Holden VF Commodore

Dimensions

Specifications