LS7 C6 Corvette Z06 Crank Scraper & Windage Tray Kit (EGM-740C)
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
SKU: EGM-740C
Improved Racing designed this crankshaft scraper and windage tray kit specifically to improve oiling, reduce oil starvation, and free up horsepower on the C6 Z06 Corvette (and other dry sump LS7 applications).
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.
Our scrapers are CNC-machined from 0.190" thick, 6061-T6 billet aluminum. The crankshaft scraper kits also include an aluminum windage tray that is 10% lighter, 70% stronger, and provides more clearance for aftermarket rods than the factory windage tray. The included windage tray bolts directly to the scraper with self-clinching lock nuts instead of the main cap studs, allowing it to be installed without disturbing the scraper alignment.
The crankshaft scrapers and windage trays 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
- Scraper and windage tray assembly is 70% stronger and 10% lighter than the factory windage tray
- Reduces oil starvation and aeration
- 100% bolt-on installation
- Windage tray is secured with locking, vibration-resistant self-clinching nuts
- Includes reducer bushings and upgraded main cap stud lock nuts for factory studs
- Compatible with factory LS7 crankshaft, factory LS7 rods, and factory or ARP main studs
- Lifetime Warranty
- Made in the USA
Includes
- CNC-machined aluminum crank scraper
- Aluminum windage tray
- Self-clinching windage tray-to-scraper mounting hardware
- 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 (scraper), 5052-H32 aluminum (windage tray)
- Weight: 2.45 lbs (1.1 kg) (complete assembly)
Applications
- Compatible with the following oil pans:
- 2005-2013 Chevrolet C6 Corvette Z06, 7.0L LS7, dry-sump
- Other vehicles running the dry-sump LS7 powertrain
- These scrapers are not compatible with aftermarket crankshafts with center counterweights (8 counterweights). They are compatible with factory-style, 6-counterweight crankshafts only.
- Oil pan must have a minimum depth of 1.70'', not including the gasket, to clear the windage tray.
- Please use the crankshaft scraper application table to select the correct part number for your application.
- Increases horsepower by up to 10 WHP
- Reduces oil starvation and aeration
- 70% stronger and 10% lighter than the factory windage tray
- Completely bolt-on installation
- Made in the USA and backed by a lifetime warranty
| Drop Ship Item | No
|
|---|---|
| Special Order Item | No
|
| Primary Material | 6061-T6 aluminum
|
| Finish | Plain
|
| Color | Natural
|
| Clears Crankshaft Stroke | 4.000"
|
| Clears Connecting Rods | Group 0 (Factory Rods)
Group 1 (Most H-Beam Rods) Group 2 (Most I-Beam Rods) Callies Compstar H-beam Callies Ultra I-beam Eagle CRS6125BLW Eagle CRS6100L3D Eagle CRS6125O3D Eagle CRS6125O3D2000 Eagle All I-Beam Rods Eagle All others not listed GM All OEM LS Rods Except LS7 & LS9 GM OEM LS7 Rods GM OEM LS9 Rods K1 012AE25613 K1 012AE25613ST K1 012AE25613L K1 012AE25610 K1 All Others Not Listed Lunati All I-Beam Rods Lunati All H-Beam Rods Manley All H-Beam Rods Manley All I-Beam Rods Most Other Brand I-Beam Rods Most Other Brand H-Beam Rods Not Listed in Group 2 Oliver All I-Beam Rods Oliver All H-Beam Rods Scat All I-Beam Rods Scat All H-Beam Rods Texas Speed All Rods Thompson Motorsports All H-Beam Rods |
| Fits Oil Pan | Chevrolet Corvette Z06 (C6)
LS7 Dry Sump 2006-2013 |
| Manufacturer | Improved Racing
|
Our History
For 23 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.