AMS 4G63 Race Balance Shaft Eliminator Kit The AMS Race Balance Shaft Eliminator Kit is the only no compromise way of removing the factory balance shafts. Eliminating the balance shaft not only frees up horsepower, it also reduces the chance of belt failures ending up in catastrophic damage to your motor. In our experience, replacing the front balance shaft with a stub shaft will increase the chances of oil pump failures. This is likely caused by eliminating the support provided by the rear bearing journal. A stub shaft allows the oil pump gears to push apart and wear into the aluminum pump. Aluminum that is being worn away will enter the clean oil stream and contaminate the engine bearings. Eventually this can result in the oil pump seizing. The AMS shaft is machined to eliminate the counterweight while leaving the bearing journal in place to keep the factory engineered support for the oil pump gears. This is the same kit used in every AMS built motor including our record breaking 1100whp drag car and Time Attack car. Features * Less rotational mass frees up horse power * CNC machined for precision * Added oil pump gear support * Proven performance * Core is Required Kit Includes * AMS spec CNC Machined Race balance shaft * Clevite Balance Shaft Bearing * Block Off Plug Specifications * CNC machined * Moly/Graphite treated TriArmor bearings Fits all 4G63, G4CS and 4G64 blocks. Core Info These kits are sold on a core exchange basis, the kit can be bought outright for $329.95 but if you can send in your good condition stock balance shaft then the price for the kit is $165. We cannot send the kit until the core is received and inspected. If you order shaft with priority shipping and will be sending in a core but we haven't received it yet, you will be charged the $165 core charge. Once we receive the core and it is inspected and deemed okay, we will refund the $165. Why AMS Recommends The Race Balance Shafts. Read about it here. http://www.amsperformance.com/ams_balance_shafts.php Vehicle Warranty and Emissions A vehicle modified by the use of performance parts and tuning may not meet the legal requirements for use on public roads. Use or installation of performance parts and tuning may adversely affect the drivability and reliability of your vehicle, and may also affect or eliminate your insurance coverage, factory warranty and new OEM part warranty. Performance parts are sold as is without any warranty of any type. There is no warranty stated or implied due to the stress placed on your vehicle by performance parts and our inability to monitor its use, tuning or modification. Part Number: AMSRBSEKEVO89
