Out of stock
SKU: GMP19435110
MPN: 19435110
The Chevrolet Performance LS3 Crate Engine 525 HP (PN 19435110) is a 6.2L LS-platform powerplant built for street rod, muscle car, and project builders who want serious output from a known, proven architecture. Rated at 525 horsepower, this 525 engine is the LS376/525 configuration that takes the standard LS3 long block and adds a hotter camshaft for more top-end power. It ships as a dressed long block ready to drop into a build that already has its own induction, ignition, and accessory plan. For builders working through a full engine project, it pairs naturally with our engine components inventory.
The LS376/525 is based on the production LS3 6.2L block with rectangular-port aluminum heads and a high-lift camshaft that lifts output to 525 horsepower over the standard LS376/480 tune. The aluminum construction keeps weight down compared to iron-block builds, and the LS3 architecture accepts a wide range of LS-pattern hardware for oiling, valvetrain, and timing. Builders commonly back the assembly with an LS-specific oil pan and pickup, and the rectangular-port heads respond well to camshaft changes if you want to revise the lift profile. We stock matching service parts including the LS oil pan, oil pump components, and LS3 timing cover hardware to complete the front of the engine.
This engine fits Pro-Touring restomods, swap projects, and original muscle cars getting a modern drivetrain. Because it arrives as a long block, plan for a controller package, throttle body, intake, fuel system, and exhaust to match your chassis. Builders running aggressive valvetrain often upgrade the camshaft, and our LS camshaft options cover a range of profiles for the LS3. Whether you are dropping it into a C10, a first-gen Camaro, or a custom chassis, the LS376/525 gives you a documented 525-horsepower baseline to build from. Browse our full engines and components selection to round out the build.
The manufacturer part number is 19435110, sold by TSA under SKU GMP19435110. This is the LS376/525 configuration, a 6.2L LS3-based crate engine rated at 525 horsepower.
This engine ships as a long block. Plan to add an intake manifold, throttle body, ignition controller, fuel system, and exhaust to match your chassis. We carry oil pans, oil pumps, timing covers, and camshafts to help complete the assembly.
Both share the LS3 6.2L block and rectangular-port aluminum heads. The LS376/525 uses a higher-lift camshaft that raises output to 525 horsepower, where the LS376/480 is rated at 480 horsepower. The camshaft is the primary difference between the two.
It works well in Pro-Touring restomods, muscle car swaps, street rods, and custom chassis builds. The LS architecture accepts a wide range of LS-pattern oiling, valvetrain, and timing hardware, making it a flexible base for street and performance projects.
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