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With ATK High Performance Chevy LM7 5.3L 385 hp long block crate engines expect big mid to upper end power and a noticeable idle. They were designed to be performance upgrades for a 1999-2007 Chevy truck LM7 or an LS swap in a hot rod. Technical specifications include: * Horsepower: 385+ * Torque: 390+ * Block: GM 5.3L iron LM7 * Bore/stroke: Up to 3.809 x 3.622 * Year range: 1999-2007 * Displacement: 323 c.i.d. * Crankshaft: OEM GM 3.622 in. stroke internally balanced 24 tooth reluctor wheel .857 in. flange * Connecting rods: OE GM forged powder metal 6.093 in. stock bolts * Pistons: Hypereutectic dish * Piston rings: Moly rings * Compression ratio: 9.5:1 compression * Camshaft: Hydraulic roller * Camshaft specifications: Custom grind * Camshaft bearings: Installed and clocked to OEM position * Cylinder heads: OE aluminum 61.15cc 1.89/1.55 * Freeze plugs: Brass installed and sealed * Rocker arms: OE powdered metal 1.7 ratio * Oil Galley plugs: Installed and sealed * Weight: 385
( 15 )
$4,189.99
$3,989.99
On Sale
VEGE remanufactured long block crate engines are an excellent foundation for budget-minded builds. These premium-quality refurbished engines are drop-in replacements for a wide range of stock vehicles—and can be retrofitted into additional applications. Each engine is reverse-engineered to ensure that any original defects are removed. Certified technicians recondition the long blocks to factory specifications, replacing wearable parts or machining them back to OE standards. The engines are thoroughly tested and calibrated to deliver maximum performance and long-term durability. Order the VEGE remanufactured crate engine recommended for your vehicle.
( 70 )
$3,346.99
$2,459.99
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$4,859.99
Save time and money on your LS engine build with a new LS nodular cast iron crankshaft from ACDelco GM Genuine Parts. These engine crankshafts are designed, engineered, and tested to rigorous standards, and are backed by General Motors and are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Most common applications are for 5.3L engine codes LMG, LMF, LH6, and LY5. These crankshafts also make a great option for any new LS engine build requiring a stock stroke, stock wet sump application, and the 58X reluctor wheel. For optimal performance, choose a crankshaft from ACDelco GM Genuine Parts that will fit and function like the original. Note: Crankshaft may require re-balancing when used in non-5.3 engines.
Not Yet Reviewed
$264.99
Whether you are building a street or race engine, your choice of crankshaft, the central component of your engine, is crucial to the peak performance of your engine. Strength and durability are important traits of a great crank, and Chevrolet Performance crankshafts are precision-engineered to be both. GM understands that crankshaft failure can be catastrophic, so their crankshafts are made to exacting specifications and tested against the forces of high performance engines. Chevrolet Performance cast nodular iron crankshafts are economical aftermarket pieces with improved ductility and tensile strength for mild performance applications. Choose wisely--choose Chevrolet Performance crankshafts.
Not Yet Reviewed
$444.99
All American Billet serpentine kits are perfect for cleaning up your engine compartment and giving it a fresh look. These kits come standard with high performance accessories. If you need to replace your belt system or just want to show off to your friends these All American Billet serpentine kits will do just that! Installation is easy with all the hardware and necessary components included in the box. A variety of different setups are available to fit models with or without power steering and air conditioning.
( 15 )
$2,125.00
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