GM & Chevrolet engines
Start with the GM engine hub for LS and LT replacement options, rebuilds, performance builds and Chevrolet short blocks.
Explore GM enginesReplacement · Rebuild · Performance
Find the right engine.
Choose your vehicle brand or engine family, compare your options, then review the matching product or request help with fitment. Big 3 supplies engines nationwide, with installation available at our East Texas facility.
Start with your vehicle brand
A matching displacement alone does not establish fitment. Have your year, model, VIN and engine code ready.
Ford engines
Explore the Ford page for engine options and application information. Confirm your engine code and vehicle configuration before choosing a replacement.
Explore Ford optionsDodge & Chrysler engines
Explore the Dodge page for engine options and application information. Share your VIN and intended use so we can help confirm the right assembly.
Explore Dodge optionsKnow your engine family or build type?
Go directly to the existing engine guides and product paths.
LS replacement & rebuilds
Compare stock replacement engines, customer-core rebuilds and performance packages.
Gen V LT engines
Find your LT engine code and review replacement, rebuild and upgrade options.
Short blocks
Explore lower engine assemblies and confirm which components you will reuse.
LS & LT performance
Explore performance options and match the build to your application and goals.
Confirm the details before ordering
Check the exact assembly, included components, vehicle compatibility and product-specific warranty. Shipping, pickup and installation arrangements depend on your order.
Applicable core deposits are individually quoted and handled as a separate transaction. Confirm your core exchange arrangements with Big 3 before paying.