Universal LS Engine Mounts – Weld-In (LS1 / Gen III–IV)
These Advance Adapters universal LS engine mounts are designed for flexibility when installing a Gen III or Gen IV LS-series V8, including LS1, into custom or swapped applications. The weld-in design allows precise engine positioning to accommodate transmission placement, driveline alignment, and clearance needs.
Each mount features double rubber cushions to reduce vibration and improve ride quality. The rubber isolators are secured with a heavy-duty 5/8-inch bolt for strength and durability. Slotted engine-side mounts allow lateral adjustment, making it easier to center the engine within the frame.
These universal LS motor mounts fit frame widths from 23.35 inches to 29.35 inches, making them suitable for a wide range of vehicles and custom builds.
Compatibility & Fitment
These mounts are designed specifically for LS-series V8 engines (Gen III / Gen IV) and are intended for use with truck exhaust manifolds or rear-dump headers. They are not compatible with car-style LS exhaust manifolds such as those used on Corvette, Camaro, or Trans-Am applications.
Common applications include Jeep YJ Wrangler and Jeep CJ LS swaps, though the universal design works well for many custom chassis and fabrication projects.
Kit Includes
- Two (2) LS engine-side mounts
- Two (2) gusseted, weld-in frame mounts
- Rubber isolator mount kit
- Required mounting hardware
- Key Features
- Universal weld-in design for LS swaps
- Compatible with LS1 / Gen III / Gen IV LS engines
- Adjustable slotted mounts for precise placement
- Double rubber cushions for vibration isolation
- Fits 23.35"–29.35" frame widths
Important Notes
- Welding required
- Designed for truck manifolds or rear-dump headers only
Bill Of Materials