Description
Improved Racing designed this crank scraper specifically for use with the C5 Corvette “Batwing” oil pan setup. Because these oil pans are shallow and well-baffled, a windage tray section isn’t required and only the scraper section of our kit is included.
Improved Racing’s crankshaft scrapers help reduce oil starvation by closely contouring the crankshaft and rods to remove excess oil, ensuring oil is quickly returned to the bottom of the sump. Crank scrapers also help reduce parasitic drag and windage losses caused by excess oil on the crank, which reduces rotational mass and results in dyno-proven gains of 5-10 HP at the wheels.
These scrapers are CNC-machined from 0.190″ thick, 6061-T6 billet aluminum. They were designed in CAD software using actual GM part models, prototyped, and test-fitted for a completely bolt-on fit in every listed application. The factory oil pump pickup tube is kept in the factory location with no compromises or modifications required.
Crank scraper kits are compatible with factory or ARP main cap studs. Reducer spacers as well as Class 10, flanged zinc-plated steel distorted thread lock nuts are included for use with factory main cap studs. For ARP main cap studs, use the nuts supplied by ARP.
Features and Benefits
- Increases horsepower by up to 10 WHP
- Reduces oil starvation and aeration
- 100% bolt-on installation
- Contributes over 1.6 lbs (0.73 kg) in weight reduction
- Includes reducer bushings and upgraded main cap stud lock nuts for factory studs
- Lifetime Warranty
- Made in the USA
Includes
- CNC-machined aluminum crank scraper
- Flanged, locking scraper-to-main cap stud mounting nuts (for use with factory studs only)
- 4 x reducer bushings for centering the scraper when using factory main cap studs
Technical Specifications
- Material: 6061-T6 aluminum
- Weight: 1.12-1.23 lbs (0.51-0.56 kg) (complete assembly)
Applications
- Compatible with the following oil pans:
- Chevrolet Corvette (C5), “Batwing” Oil Pan, 1997-2004
- These scrapers are not compatible with aftermarket crankshafts with center counterweights (8 counterweights). They are compatible with factory-style, 6-counterweight crankshafts only.
- Please use the crankshaft scraper application table to select the correct part number for your application.
