Best Motor Mounts For Ls Swap: Compare Plates and Mount Kits

#1 · Best Overall

1. ICT Billet SBC Adapter Plates

• dimensions: 8 x 5 x 1 in
• Weight: 2.1 lb
• Material: Aluminum

Best for: U.S.-made billet SBC adapters.

Why it ranks #1: Suits SBC vehicles retaining existing mounts; 3/8-inch USA-produced billet aluminum, included bolts, and a specified .17-inch centerline shift make the setup clear.

ICT Billet specifies 3/8-inch aerospace-grade, USA-produced billet aluminum for these small-block Chevy-to-LS adapter plates. They let an LS engine use existing mounts in a small-block Chevy vehicle, and their stated 0.17-inch crankshaft-centerline rise gives the swap a defined placement change.

The plates use OEM specifications and raise the crankshaft centerline 0.17 inches, giving builders two concrete considerations for planning fitment and engine position. The kit includes two plates, eight flat-head bolts, and six M10-1.5 flange bolts; the plates are M10-threaded, so the listed hardware corresponds to the adapter setup. This is an adapter solution for retaining existing small-block Chevy mounts, not a vehicle-specific replacement mount system.

Skip it if you need a vehicle-specific replacement mount system instead of plates that adapt existing small-block Chevy mounts.

A fit for builders who value specified billet material and want to adapt existing small-block Chevy mounts for an LS engine. Plan around the stated centerline rise and confirm the adapter approach suits the vehicle’s mounting arrangement.

Listed on Amazon as: ICT Billet SBC Vehicle to LS Engine – Motor Mount Adapter Plate – Universal Swap Bracket Small Block LS Conversion Adjustable LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4 Billet 551628

#2 · Best Truck Fit

2. Goopool Square Body Truck Mounts

• dimensions: 10.7 x 5.3 x 5.2 in
• Weight: 3.16 kg
• Material: Alloy Steel

Best for: Square-body and OBS truck swaps.

Why it ranks #2: Specifically fits 1973–1998 Square Body and OBS Chevy/GMC trucks, offers slotted placement adjustment, and lists compatible transmission combinations.

Slotted engine-placement adjustment is the defining feature of Goopool’s mounts for 1973–1998 square-body and OBS Chevy/GMC trucks. That adjustment lets installers position an LS engine within the compartment, while the listed transmission combinations cover several common standard and automatic setups for these trucks.

The stated application spans 2WD and 4WD trucks, and the LS compatibility list includes LS-series engines and 1999–2013 Vortec truck engines. Slotted mounts allow engine-placement adjustment during installation, while listed transmissions include 4L60E, 4L65E, TH350, TH400, TH700R4, and 4L80. Together, those details help buyers assess both truck coverage and drivetrain plans; the application remains specific to the listed 1973–1998 Chevy/GMC truck range.

Skip it if you are swapping a G-body or a small-block Chevy car rather than a listed 1973–1998 Chevy/GMC truck.

Choose these for an LS conversion in a listed square-body or OBS Chevy/GMC truck when adjustable placement and the specified transmission range suit the build. Their stated vehicle coverage is truck-focused, not a general-purpose swap application.

Listed on Amazon as: LS Swap Motor Mounts Compatible with 1973-1998 Square Body / OBS Chevy GMC Truck 2WD,4WD Adjustable Swap Engine Conversion Bracket for C10 C/K 1500

#3 · Best G-Body Fit

3. maXpeedingrods G-Body Mounts

• Weight: 10.56 lb

Best for: Adjustable G-body conversions.

Why it ranks #3: Targets 1973–1988 G-body applications and provides slotted adjustment, with stated movement of up to 1/2 inch forward and 1 inch.

Slotted mounts let maXpeedingrods’ G-body adapter kit adjust LS engine placement in the engine compartment, addressing clearance and fitment during installation. The application is specifically listed for 1978–1988 G-body vehicles, while the mount arrangement can move the engine up to one-half inch forward.

The listed LS compatibility includes Gen 3 and Gen 4 GM engines and named displacements, giving G-body builders a defined engine scope. Slotted adjustment supports positioning in the compartment, and the stated forward movement of up to one-half inch adds a concrete placement option. Powder-coated spacers are described as anti-corrosion treated. No instructions are included, and professional installation is recommended, so buyers should plan their installation resources accordingly.

Skip it if you need included installation instructions or are converting a vehicle outside the stated 1978–1988 G-body application.

For a listed G-body LS conversion where slotted placement and limited forward movement help with installation layout, this kit offers specific adjustment. It does not include instructions, and professional installation is recommended.

Listed on Amazon as: maXpeedingrods LS Engine Swap Mount Adapter Kit for G-Body 1973-1988

#4 · Best S10 Fit

4. YHB S10 Adapter Kit

• Weight: 4.11 kg
• Material: Alloy Steel

Best for: S10 and S15 chassis swaps.

Why it ranks #4: Lists Chevrolet S10 and GMC S15/Sonoma applications across specified model ranges, with multi-position, 1/4-inch laser-cut steel adapter plates.

A multi-position, 1/4-inch laser-cut steel adapter-plate design distinguishes YHB’s urethane swap kit for listed S10, S15, Blazer, Jimmy, and Sonoma applications. The adjustable plates allow the new engine to be set in its factory position, giving installers a defined placement goal.

The stated applications cover specified 2WD compact trucks and SUVs originally equipped with a 2.8-liter Chevrolet engine, while the compatible engine list includes LS families and several GM V8 displacements. Multi-position plates allow adjustment toward the engine’s factory position, which can guide installation layout. The kit is identified as a full engine-mount adapter-plate urethane kit, with alloy-steel construction; professional installation is highly recommended in the supplied facts.

Skip it if you have a vehicle outside the listed S10, S15, Blazer, Jimmy, or Sonoma applications, or prefer a product without a professional-installation recommendation.

This kit targets the listed compact GM trucks and SUVs, especially builds seeking adjustable placement toward the engine’s factory position. Check its specific chassis and original-engine application, and account for the professional-installation recommendation.

Listed on Amazon as: Full Engine Mount Adapter Plates Urethane Swap Kit – Mounts & Frame

#5

5. ECOTRIC LS Mounts

• dimensions: 10.24 x 6.69 x 3.94 in
• Weight: 4.15 kg
• Material: Alloy Steel

Best for: Heavy-duty steel LS mounts.

Why it ranks #5: A pair of heavy-duty steel mounts is listed for LS1, LS2, LS3, LS6, and LS7 conversions, though the provided fitment is not chassis-specific.

Heavy-duty alloy steel is the defining material of ECOTRIC’s LS conversion mounts, which are intended to install an LS-series engine in an older car or truck. Their listed LS1, LS2, LS3, LS6, and LS7 compatibility gives buyers a clear engine-family scope for evaluating a conversion.

The pair of mounts is made from alloy steel, which the product describes as impact-resistant and suitable for tough environments and weather. That material and the stated conversion function make this a complete mount-pair option for an older car or truck, rather than an adapter plate set for existing small-block mounts. Its listed engine range covers five LS families, so buyers can compare their planned engine against the stated compatibility before choosing the installation approach.

Skip it if you need adapter plates to retain existing small-block Chevy mounts or require compatibility beyond the listed LS families.

Consider this pair for an older car or truck receiving one of the listed LS engines, especially when alloy-steel mounts suit the application. The supplied facts do not specify vehicle-model coverage or placement adjustment.

Listed on Amazon as: ECOTRIC LS Engine Motor Mounts Conversion Swap Compatible with LS Series

#6

6. ForoGore C10 Swap Mounts

• dimensions: 10.6 x 5.2 x 5.2 in
• Material: Alloy Steel

Best for: Broad-coverage Chevy truck swaps.

Why it ranks #6: Targets 1973–1998 OBS and Square Body Chevy/GMC trucks in 2WD and 4WD, and includes screws, but the listing gives less adjustment detail.

ForoGore lists 1973–1998 OBS and square-body Chevy/GMC truck coverage across 2WD and 4WD, making its mount set a broad truck-focused option. Adjustable engine placement and compatibility with several named transmissions give builders two practical installation-planning factors to weigh.

The stated vehicle list includes full-size C/K trucks and several Chevy/GMC models, while the mount function allows adjustment of engine placement in the compartment. Transmission compatibility names 4L60E, 4L65E, TH350, TH400, TH700R4, and 4L80, helping buyers assess drivetrain plans alongside truck fitment. Alloy-steel construction and included screws are specified. The breadth described is for the listed truck and SUV applications, rather than a general fit claim for unrelated vehicles.

Skip it if you are building a G-body or small-block Chevy car swap rather than one of the listed OBS or square-body truck applications.

A candidate for listed Chevy/GMC truck and SUV builds needing adjustable LS placement and compatibility with named transmission combinations. Its stated application is vehicle-specific, so match the project to the listed truck coverage.

Listed on Amazon as: ForoGore LS Conversion Engine Swap Mounts, Compatible with Chevy GMC C10

#7

7. YESHMA SBC Adapter Plates

• dimensions: 8.25 x 4.25 x 0.17 in
• Weight: 1.07 kg
• Material: Aluminum

Best for: Classic SBC vehicle adapters.

Why it ranks #7: Fits listed SBC vehicles using existing mounts and includes plates, bolts, and washers; its stated low-mount AC compressor exclusion narrows compatibility.

YESHMA’s adapter plates let an LS engine mount on the stock bracket of a small-block Chevy vehicle using existing mounts. The listed Gen III/IV engine range and classic Chevy applications define the intended conversion scope, while the explicit low-mount AC compressor exclusion is important for planning fitment.

Compatibility is listed for LS Gen III/IV engines from 1997–2013 and several classic Chevy cars and trucks, including Camaro, Nova, Chevelle, and Impala examples. Using the stock bracket with existing mounts makes these plates an adapter-based route rather than a complete replacement mount system. The included plates, bolts, and washers support the specified kit contents. The product expressly excludes low-mount AC compressors, a relevant constraint when evaluating accessory layout.

Skip it if you need a low-mount AC compressor to work with the swap; the listed YESHMA plates expressly exclude that setup.

Choose these for a listed classic Chevy conversion using existing small-block Chevy mounts and a compatible Gen III/IV LS engine. The low-mount AC compressor exclusion is a firm boundary to consider when planning accessory placement.

Listed on Amazon as: for LS Swap Motor Mounts Adapter Plates for SBC Vehicle to LS Engine LS1 LS2 LS3 LS6 LQ4 LQ9 L33 L92 L99 LR4, for LS Conversion Swap Bracket Adjustable Universal (Black)

#8

8. Yoursme SBC Adapter Plates

• Weight: 1.01 kg
• Material: Aluminum

Best for: Small-block Chevy conversions.

Why it ranks #8: Provides aluminum plates and hardware for installing an LS engine on an SBC vehicle’s existing mounts, with a specified .17-inch centerline shift.

Existing small-block Chevy mounts can stay in the plan: Yoursme’s aluminum adapter plates let an LS-series engine bolt into a vehicle originally equipped with a small-block Chevy. The plates raise the crankshaft centerline 0.17 inches, a specific placement change worth accounting for while laying out the swap.

The kit includes two adapter plates, eight flat-head bolts, and six M10-1.5 flange bolts; the plates are M10-threaded, so the supplied hardware supports their installation without a separate listed fastener set. Its small-block-to-LS function makes this a focused option for retaining existing mounts rather than replacing them with a vehicle-specific mount system. The stated 0.17-inch crankshaft-centerline rise is a fitment consideration when planning engine position.

Skip it if you need a complete vehicle-specific mount system rather than adapter plates for existing small-block Chevy mounts.

For a swap retaining a vehicle’s existing small-block Chevy mounts, these aluminum plates provide a direct LS adapter approach. Account for the stated 0.17-inch centerline rise and verify that this layout suits the vehicle’s installation plan.

Listed on Amazon as: for LS Swap Motor Mounts Adapter Plates – Universal Swap Bracket Small Block LS Conversion Adjustable Fit for LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4 Billet Aluminum for SBC Vehicle to LS Engine

#9

9. Mejiao SBC Adapter Plates

• dimensions: 7 x 4 x 0.7 in
• Weight: 1.01 kg
• Material: Aluminum

Best for: CNC aluminum SBC adapters.

Why it ranks #9: CNC-milled aluminum plates support SBC-to-LS conversion and state a .17-inch centerline shift, but the supplied listing gives no vehicle-specific fitment.

CNC-milled aluminum plates give Mejiao’s adapter kit its clearest distinction for small-block Chevy-to-LS conversions. They let an LS-series engine bolt into a vehicle with original small-block Chevy mounts, while the specified 0.17-inch crankshaft-centerline rise gives installers a concrete position change to plan around.

The kit’s stated OEM specifications and CNC-milled aluminum construction support accurate adapter-plate placement, while its small-block Chevy conversion function uses the vehicle’s existing mounts. That makes it a focused alternative to replacing the mount arrangement. The plates raise the crankshaft centerline 0.17 inches, so buyers can include that shift in their engine-position planning. Listed compatibility spans LS1, LS2, LS3, LQ4, LQ9, LS6, L92, L99, L33, and LR4 engines.

Skip it if you need adjustable slots or a vehicle-specific mount kit rather than fixed adapter plates for existing small-block Chevy mounts.

This suits builders converting a small-block Chevy vehicle to a listed LS engine while keeping its existing mounts. Consider the stated 0.17-inch centerline rise when checking the intended engine position and surrounding installation requirements.

Listed on Amazon as: for LS Swap Motor Mounts Adapter Plates – LS Conversion Adjustable Universal Swap Bracket Small Block Kit for LS Engine, LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4 Billet Aluminum

#10

10. maXpeedingrods Cut-to-Fit Plates

• dimensions: 11.1 x 8.11 x 6.42 in

Best for: Custom-frame LS projects.

Why it ranks #10: Designed as universal cut-to-fit plates for custom vehicles, hot rods, and off-road builds, so it provides the least defined chassis fitment here.

Cut-to-fit plates make maXpeedingrods’ LS swap adapters the flexible choice here for custom rods, crawlers, dune buggies, and custom-frame vehicles. Their steel construction and black coating are specified alongside claims of corrosion resistance, helping define the intended rough-use and fabrication context.

The universal cut-to-fit format allows adaptation for custom applications rather than tying the plates to a named production vehicle. Premium-grade steel and a rugged black coating are described as supporting corrosion resistance and use in harsh off-road conditions. The product also states that its mounts reduce engine movement and vibration to support drivetrain alignment. Because the plates require cutting to fit, this option best suits buyers prepared to tailor the installation to their chassis.

Skip it if you need a vehicle-specific bolt-in application rather than plates that must be cut to fit your chassis.

This suits fabricators working on custom rods, crawlers, dune buggies, or custom-frame LS projects who can tailor the plates. Its cut-to-fit format is the key boundary for buyers seeking a specified production-vehicle application.

Listed on Amazon as: maXpeedingrods LS Swap Mounts Conversion Motor Mounts Adapters Plates