Performance Adapters at US Shift
GM LS to Ford Small Block & Modular Automatic Transmission Adapter
PerformanceAdapters.com GM LS1/LS2/LS3 engine to Ford Small Block & Modular automatic transmission adapter. Can be used with the Quick6, Quick4, or Quick2 controlling a 6R80, 4R70W, or AODE transmission.
Kit items included:
1ea - Adapter Plate
1ea - Crank Spacer
1ea - High Torque Mini Starter
1ea - Hardware Kit
This kit is for connecting an LS1/2/3 engine to any Ford Small Block or Modular (6R80) automatic transmission. By using this kit, you can easily swap out your existing Ford engine for an LS engine while retaining your original OEM driveline setup.
Constructed from high-quality materials, the adapter plate is crafted from 6061 billet aluminum and measures 1" thick. It is contoured to fit the engine and transmission interfaces as closely as possible, ensuring a seamless connection. The crank spacer is made from 1018 steel, providing both strength and precision without compromising durability.
Efforts have been made to minimize the addition of rotating mass and keep the adapter's length as minimal as possible to prevent interference. The starter is mounted directly onto the adapter plate and is designed to snugly fit into the SBF or Modular starter boss. However, depending on the specific transmission used, minor material removal may be necessary to ensure proper clearance.
While primarily designed for LS1/2/3 engines, this kit may also be compatible with other GM engines, although the crank spacer included in the kit is specifically sized for the 6 bolt, 79mm bolt circle crank.
$795
IMPORTANT: If you are planning on purchasing a US Shift controller, don't purchase a transmission adapter here. Please contact us to bundle a controller with a transmission adapter and receive a discount.
Store Policies
Shipping Cost
Shipping is calculated by Shopify at checkout. For controller kits, we ship via UPS.
Shipping Time
Due to delays in the supply chain, expect a delay of 10-14 days for control system orders to ship. An email will be sent to the address you provide during checkout with tracking information once your order ships. Please note that choosing expedited shipping does not reduce the time that it takes for us to ship your order.
Sales Tax
Sales tax will be charged for residents of South Carolina.
Return Policy
All returns must have an RA (Return Authorization) number and will be charged a 15% restocking fee. Shipping is non-refundable unless we shipped you the incorrect item. No refunds will be issued after 30 days past the ship date.
