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ATK High Performance Chevy LM7 5.3L Short Blocks

ATK High Performance Chevy LM7 5.3L short blocks are assembled with OE flat top pistons and offer these engine specifications: * Seasoned 5.3L LM7 block * 1999-2007 year range * Bore/stroke: 3.810 in. x 3.622 in. * Displacement: 330 cu.in * OEM GM 24-tooth reluctor wheel crankshaft * OEM GM forged powder metal rods * Stock hypereutectic flat top pistons with two valve reliefs * Compression ratios: 61cc = 9.8:1/64cc = 9.5:1/68cc = 9.1:1 -- Can vary due to deck height/gasket thickness * Plasma moly rings * Camshaft bearings: Installed and clocked to OEM position * Freeze plugs: Installed and sealed * Oil galley plugs: Installed and sealed

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$2,043.99

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ATK Marine Rebuilt Long Block Engines

ATK Marine Engines offers premium-quality rebuilt long block engines specifically for boating applications. These engines are designed to deliver maximum performance and long-term durability for your boat. Order the model recommended for your marine application. ATK Marine rebuilt engines include: * Special marine pistons and rings * Special marine camshaft * Marine gaskets * New intake and exhaust valves * New main, rod, and cam bearings * New valve lifters, rocker nuts, and swivels * Heavy-duty double roller timing chains * Cam sprocket * Crank gear * Freeze plugs

4.4 out of 5 stars ( 45 )

$2,673.99

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$3,097.99

$1,999.50

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