ATK Engines DCT8 GM 5.3L 99-07 Truck Remanufactured Crate Engine For Sale

GM 5.3L LS, Remanufactured Crate Engine, Aluminum Cylinder Heads ATK Engines DCT8 GM 5.3L 99-07 Truck Remanufactured Crate Engine Sku # 35020041 Mfr. Part # DCT8 Condition New Brand ATK Engines Sold Each Details

The ATK Engines DCT8 remanufactured 5.3L crate engine is a dependable stock-replacement solution built for a wide range of 1999-2007 Chevy, GMC, and Cadillac trucks, SUVs, and vans. Based on the LM7/L59 platform with an iron block and aluminum heads, this reman engine is designed to restore factory-style performance, reliability, and fitment for popular applications like the Silverado, Sierra, Suburban, Avalanche, Express, Savana, and Escalade.

• Remanufactured Long Block Crate Engine
• Fits 1999-2007 Chevy Silverado 1500/Suburban/Avalanche/Express, GMC Sierra 1500/Savana, and 2002-2005 Cadillac Escalade
• 325 C.I.D. / 5.3 Liter Cast Iron Block, Block Cast #: 12551358, 67392, 393, 398
• Aluminum Cylinder Heads, Head Cast #: 58862, 59862, 61706
• 3 Bolt Cam Gear
• Weight: 435lbs

Specs Crate Engine Type Long Block Compression Ratio No Value Engine Displacement 325 cu. in. Camshaft Type Hydraulic Roller Cylinder Head Material Aluminum Piston Material No Value Crankshaft Material No Value Carburetor Included No Intake Manifold Included No Distributor Included No Connecting Rod Material No Value Valve Covers Included No Engine Balance Internal Cylinder Heads Included Yes Rear Main Seal Style 1-piece Throttle Body Included No Timing Cover Included No Oil Pan Included No Water Pump Included No Harmonic Balancer Included No Flexplate Included No Flywheel Included No Air Cleaner Included No Spark Plugs Included No Spark Plug Wires Included No Computer Included No Wiring Harness Included No Reluctor Wheel 24x Combustion Chamber Volume No Value Camshaft Duration (.050 in) No Value Camshaft Lift (in) No Value Bore x Stroke (in) No Value Recommended Fuel Premium Reviews I recently installed this in my 2003 Silverado. Rated by Sam on August 29, 2026

Summary: I recently installed this because I couldn't find a used engine that I could trust. It came well packaged and with a Felpro gasket kit and a melling oil pump. I think they used some quality parts. They included records of all the remanufactured components so I know what machine work was done on the block, crank and heads. The cam and valve train looked to be new. It has a couple hundred miles on it so far and it runs smoothly and doesn't leak. It starts easily and makes good power. I have new life for my favorite truck. Time will tell but no regrets so far and I couldn't beat the price. Thanks speedway!

Yes, I recommend this product.

Tech Support We\'re here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.