Engines • Transmissions • Installation
Built in East Texas. Shipped nationwide.
Engines • Transmissions • Installation
GM LS ENGINE OPTIONS
Compare replacement engines, customer-core rebuilds and performance packages. Start with your engine code and intended use, then confirm the assembly, fitment and written warranty.
A replacement engine for an existing application. Standard units are supplied by ATK/Tristar, with some Big 3 production depending on availability. Confirm the supplier and assembly on your quote.
Warranty distinction: Four-year unlimited-mileage parts and labor coverage. Labor reimbursement is $50/hour, capped at $1,000. An optional $350 extension provides ten-year/100,000-mile parts coverage; it does not extend labor coverage.
Request this configurationSupply your rebuildable core. The block, heads, crankshaft and rods are remanufactured; internal replacement parts include new pistons, rings, camshaft, lifters, valves and springs. External accessories are not automatically included.
Warranty distinction: Four-year/100,000-mile parts-only warranty.
Request this configurationA selected drop-in Stage 1 camshaft upgrade that does not require upgraded springs for the confirmed combination. Match the package to your vehicle, fuel and intended use.
Warranty distinction: Big 3 Stage 1 packages: four-year/100,000-mile parts-only warranty.
Request this configurationChoice of Stage 1–3 camshaft, BTR Platinum double springs, upgraded valves, CHE trunnion rocker arms and BTR chromoly pushrods. Camshaft choices include BTR, GPI and TSP. Package stage and camshaft stage are different specifications.
Warranty distinction: Big 3 Stage 2 packages: four-year/100,000-mile parts-only warranty.
Request this configurationThe applicable written warranty controls eligibility, exclusions and claims. GM-supplied engine and upgrade options carry their applicable GM product warranty through Big 3; do not substitute the stock reman or named-build warranty.
Reusing suitable heads or building a specific combination? Compare the existing LM7, LQ4 and LS 408 short-block listings and verify the exact included parts.
View Chevrolet LS short blocksHave your year, make, model, VIN, engine code and intended use ready. Crank signal, cylinder heads, electronics, oil pan, drivetrain and emissions equipment can affect compatibility. Confirm calibration, freight and any core arrangements with your quote.
Call 903-262-9502Start with the original engine code and VIN. These guides cover different years and configurations; confirm fitment before selecting a product.
Engines • Transmissions • Installation
Built in East Texas. Shipped nationwide.
Engines • Transmissions • Installation
GM LS ENGINE OPTIONS
Compare replacement engines, customer-core rebuilds and performance packages. Start with your engine code and intended use, then confirm the assembly, fitment and written warranty.
A replacement engine for an existing application. Standard units are supplied by ATK/Tristar, with some Big 3 production depending on availability. Confirm the supplier and assembly on your quote.
Warranty distinction: Four-year unlimited-mileage parts and labor coverage. Labor reimbursement is $50/hour, capped at $1,000. An optional $350 extension provides ten-year/100,000-mile parts coverage; it does not extend labor coverage.
Request this configurationSupply your rebuildable core. The block, heads, crankshaft and rods are remanufactured; internal replacement parts include new pistons, rings, camshaft, lifters, valves and springs. External accessories are not automatically included.
Warranty distinction: Four-year/100,000-mile parts-only warranty.
Request this configurationA selected drop-in Stage 1 camshaft upgrade that does not require upgraded springs for the confirmed combination. Match the package to your vehicle, fuel and intended use.
Warranty distinction: Big 3 Stage 1 packages: four-year/100,000-mile parts-only warranty.
Request this configurationChoice of Stage 1–3 camshaft, BTR Platinum double springs, upgraded valves, CHE trunnion rocker arms and BTR chromoly pushrods. Camshaft choices include BTR, GPI and TSP. Package stage and camshaft stage are different specifications.
Warranty distinction: Big 3 Stage 2 packages: four-year/100,000-mile parts-only warranty.
Request this configurationThe applicable written warranty controls eligibility, exclusions and claims. GM-supplied engine and upgrade options carry their applicable GM product warranty through Big 3; do not substitute the stock reman or named-build warranty.
Reusing suitable heads or building a specific combination? Compare the existing LM7, LQ4 and LS 408 short-block listings and verify the exact included parts.
View Chevrolet LS short blocksHave your year, make, model, VIN, engine code and intended use ready. Crank signal, cylinder heads, electronics, oil pan, drivetrain and emissions equipment can affect compatibility. Confirm calibration, freight and any core arrangements with your quote.
Call 903-262-9502Start with the original engine code and VIN. These guides cover different years and configurations; confirm fitment before selecting a product.