DMS 10.0-Inch 10-Rib Lower LSA/LT4 Overdrive Pulley for ATI Balancers
The DMS 10.0-inch lower overdrive pulley increases supercharger speed on LSA and LT4 combinations using compatible ATI harmonic balancers. Although machined as a 10-rib pulley, it can be used with an 8-rib belt by running the eight ribs nearest the engine.
- 10.0-inch diameter, 10-rib design
- Approximately 25% overdrive on LT4 applications
- Approximately 28% overdrive on LSA applications
- CNC-machined 6061 aluminum
- Anodized for wear and corrosion resistance
- Fits ATI balancers 918856 and 918854
Fitment
LSA- and LT4-based supercharger systems using ATI 918856 or 918854 balancers, including compatible Kong, Harrop, and Magnuson combinations. Typical vehicle applications include 2009-2015 Cadillac CTS-V, 2012-2015 Camaro ZL1, 2016-2019 Cadillac CTS-V, and 2017-2024 Camaro ZL1.
Required checks: LSA applications using 9.20-inch or larger lower pulleys require the appropriate DMS idler-relocation hardware. Sixth-generation Camaro ZL1 and third-generation CTS-V applications may require sway-bar spacers. Belt length must be selected for the complete pulley combination.
Shipping and Availability
Physical product; shipping is calculated at checkout. Dealer-fulfilled/special-order availability is subject to manufacturer confirmation. Professional installation and calibration are strongly recommended.
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.