Best LS Motor Swap Mounts and Adapter Kits for Chevy Trucks and Cars
Swapping an LS motor into your vehicle requires the right mounts and adapter kits to ensure a secure fit and proper alignment. Below is a concise table summarizing key LS swap motor mounts and adapter plates that fit a variety of Chevy trucks and cars, especially the popular 1973-1998 square body and G-body platforms.
| Product | Compatibility | Key Features | Brand |
|---|---|---|---|
| Goopool LS Swap Motor Mounts | 1973-1998 Square Body / OBS Chevy GMC Trucks 2WD & 4WD | Adjustable, compatible with multiple LS engines and transmissions | Goopool |
| maXpeedingrods LS Engine Swap Mount Kit | 1973-1988 G-Body (Monte Carlo, Cutlass) | Powder coated, anti-corrosion, fits LS1, LS2, LS3, LS6, LSX, LQ4, LQ9 | maXpeedingrods |
| Yoursme Small Block LS Conversion Adapter Plates | Universal fit for SBC vehicles | OEM spec design, moves crankshaft centerline up .17 inches | Yoursme |
| YHB Engine Mount Adapter Plates Urethane Swap Kit | 1982-2005 GMC S15, Sonoma, Chevrolet S10, Blazer | Laser cut steel, multi-position, includes hardware | YHB |
| ICT Billet Motor Mount Adapter Plate | Universal SBC to LS conversion | Aerospace grade billet aluminum, OEM specifications | ICT Billet |
Goopool LS Swap Motor Mounts for Square Body Chevy GMC Trucks
The Goopool LS Swap Motor Mounts offer adjustable placement designed specifically for 1973-1998 square body and OBS Chevy GMC trucks in both 2WD and 4WD configurations. These mounts accommodate the entire range of Chevy LS engines, including LS1 through LS9 and Vortec truck engines from 1999-2013. Their design supports various transmissions like the 4L60E, TH350, TH400, and 4L80, making them versatile for multiple swap builds. The slotted adjustment feature allows precise fitting in the engine bay, enhancing installation flexibility. These mounts work well for popular full-size GM trucks including C10, C20, Silverado, and Sierra models.
maXpeedingrods LS Swap Mount Adapter Kit for G-Body Cars
Built for classic G-body vehicles made between 1973 and 1988 such as the Chevrolet Monte Carlo and Cutlass, this maXpeedingrods swap mount kit features a corrosion-resistant powder coating for durability. It fits LS Gen III and IV engines, including LS1, LS2, LS3, LS6, and popular LSX variants like LQ4 and LQ9. The kit is designed to bolt directly into the factory mounting points, simplifying installation. Anti-corrosive treatment protects these mounts even in harsh engine compartment environments, making it a robust choice for LS conversions on G-body chassis.
Yoursme Universal Small Block to LS Adapter Plates
The Yoursme adapter plates are precision-machined to OEM specifications, designed to convert vehicles originally equipped with small block Chevy engines to accommodate LS series motors. These plates shift the crankshaft centerline upward by .17 inches, which can improve fitment and clearance in the engine bay. This universal kit includes all necessary hardware such as flat head bolts and flange bolts for easy installation. Constructed from billet aluminum, these plates ensure a strong yet lightweight adapter solution for SBC to LS swaps.
YHB Full Engine Mount Urethane Swap Kit for GMC Sonoma and Chevy S10
The YHB urethane swap kit is engineered for GM mid-size trucks like the GMC Sonoma S15 and Chevrolet S10, including Blazer and Jimmy models from the 1980s through mid-2000s. This kit includes laser-cut steel adapters and 2.8L urethane frame mounts offering enhanced durability and vibration dampening. The multi-position design allows adjusted alignment to suit various installation needs. Included hardware ensures a complete setup. This kit is ideal for enthusiasts adapting LS power into small or mid-sized GM trucks originally running 2.8L engines.
ICT Billet Aluminum Motor Mount Adapter for SBC to LS Conversions
The ICT Billet adapter plate is constructed in the USA from aerospace-grade billet aluminum ensuring premium strength and precision. Designed to OEM specifications, this adapter raises the crankshaft centerline by 0.17 inches for a tailored fit in vehicles originally equipped with small block Chevy engines. Its billet aluminum construction provides superior resistance to deformation and wear, while the CNC milling guarantees the most accurate alignment for a reliable and clean LS swap installation.
Buying Guide for LS Motor Swap Mounts and Adapter Kits
When selecting an LS motor swap mount or adapter kit, consider the following key factors to ensure compatibility, ease of installation, and durability.
Vehicle Compatibility
Choose mounts specifically designed for your vehicle model and year range. For example, the Goopool mounts suit 1973-1998 Square Body Chevy/GMC trucks while maXpeedingrods target 1973-1988 G-Body cars. Universal adapter plates may fit a wider range but verify measurements against your chassis.
Engine and Transmission Fitment
Check that the mounts are compatible with your specific LS engine generation (Gen III, Gen IV) and transmission type. Mounts that support multiple transmissions like the 4L60E or TH350 offer more flexibility.
Material Quality and Durability
Opt for mounts made from high-quality materials such as billet aluminum or thick gauge steel. Powder coating or urethane bushings increase resistance to corrosion and vibration, extending longevity.
Installation and Adjustability
Adjustable mounts with slotted holes provide better positioning within the engine bay, important for clearance and alignment. Bolt-on solutions simplify installation compared to those requiring welding or fabrication.
Included Hardware and Completeness
Verify if mounting bolts, spacers, and brackets come included with the kit. Having all necessary hardware reduces installation delays and ensures proper fit.
Performance Considerations
Some adapters raise the crankshaft centerline by .17 inches to better align the engine within the chassis and potentially improve drivetrain performance. This should be factored into your choice depending on your vehicle’s setup.