Availability
These ATK High Performance Chevy LS 408 short blocks are made to handle some serious power. The foundation of any high performance engine is a rock-solid short block, so ATK designed and developed these to be just that. They feature a fully forged, balanced, and blueprinted rotating assembly that is available in a variety of configurations to fit naturally aspirated, nitrous, and forced induction builds, as well as those with 24 and 58-tooth cranks. These ATK High Performance Chevy LS 408 short blocks include the following: * GM LS Iron blocks * Aligned and hone main bores * Manley 4340 forged crankshaft * 4.00 in. stroke * Manley 4340 H-beam connecting rods * Manley forged pistons
( 4 )
$5,143.99
BluePrint Engines GM 383 c.i.d. 445 hp dressed power-adder stroker long block crate engines make strong foundations for nitrous, turbos, and blowers. Block features: * Cast iron * 4-bolt main * One-piece rear main seal * Passenger side dipstick * Mechanical fuel pump provision * Drilled and tapped for clutch linkage Rotating assembly: * Forged crankshaft * Forged I-beam connecting rods * Forged pistons Also includes: * Aluminum cylinder heads -- 64cc chamber -- 2.02 in. intake/1.60 in. exhaust valves -- 195cc intake/75cc exhaust runners * Hydraulic roller cam -- .536 intake/.555 exhaust -- 224 intake/236 exhaust duration at .050 -- 113 degree lobe separation * Oil pan * Valve covers * Timing cover * Harmonic balancer * 30-month/50,000-mile Warranty * Dyno-tested and shipped with results
( 1 )
$8,049.00
You're track-ready with extreme performance GM LSX376 crate engines. At home on the street and on the strip, these value-driven Chevrolet Performance crate engines offer lower-compression forged aluminum pistons, a tough bottom end, and high-flow heads. LSX376 engines make a perfect foundation for supercharging, turbocharging, and nitrous--all you need to do is supply the boost! Does your muscle deserve the LSX touch? Yes! Get the strength and power to build a winner with these features: * Race-bred LSX Bowtie block * High-flow LS3 cylinder heads * Blower-friendly 9.0:1 forged pistons * 14 in. automatic transmission flexplate * Unique LSX376 valve covers
Not Yet Reviewed
$13,568.04
ATK High Performance Chevy Gen V LT1 416 short blocks are built for naturally aspirated engines, boost or nitrous. ATK starts with a new GM LT block and outfits it with a Manley 4340 forged crankshaft, H-beam rods with ARP2000 bolts, Manley 2618 forged pistons, and Total Seal CS AP ring package with steel top rings. These short blocks will have the factory piston squirters plugged. Engine Specifications: * Block: New GM LT1/LT4 * Bore/Stroke: 4.065 in. x 4.000 in. * Displacement (cu.in): 416 c.i.d. * Crankshaft: Manley 4340 forged 58-tooth reluctor wheel * Rods: Manley 4340 forged H-beam 6.125 in. ARP 2000 bolts * Pistons: Choice of 2618 forged +10cc or +20cc dished * Rings: Total Seal CS AP steel top ring with Napier 2nd ring set * Camshaft bearings: Installed and clocked to OEM position * Freeze plugs: Installed and sealed * Oil galley plugs: Installed and sealed Recommended components: * Balancer -- Internal balance * Flex plate / Flywheel -- Internal balance * Head gasket: .051 in. or per application * Oil pump: Factory Engine Info: * Oil: 5W30 non-synthetic for first 3,000 miles * Oil filter: Wix or K&N, per application
Not Yet Reviewed
$6,998.99
ATK High Performance Chevy Gen V LT1 376 short blocks are built for naturally aspirated engines, boost or nitrous. ATK starts with a new GM LT block and outfits it with a Manley 4340 forged crankshaft, H-beam rods with ARP2000 bolts, Manley 2618 forged pistons and Total Seal CS AP ring package with steel top rings. These short blocks will have the factory piston squirters installed. Engine Specifications: * Block: New GM LT1/LT4 * Bore/Stroke: 4.065 in. x 3.622 in. * Displacement (cu.in): 376 c.i.d. * Crankshaft: Manley 4340 forged 58-tooth reluctor wheel * Rods: Manley 4340 forged H-beam 6.125 in. ARP 2000 bolts * Pistons: Choice of 2618 forged +12cc dished or -2cc domed * Rings: Total Seal CS AP steel top ring with Napier 2nd ring set * Camshaft bearings: Installed and clocked to OEM position * Freeze plugs: Installed and sealed * Oil galley plugs: Installed and sealed Recommended Components: * Balancer -- Internal balance * Flex plate / Flywheel -- Internal balance * Head gasket: .051 in. or per application * Oil pump: Factory Engine Info: * Oil: 5W30 non-synthetic for first 3,000 miles * Oil filter: Wix or K&N, per application
Not Yet Reviewed
$6,998.99
BluePrint Engines GM BB compatible 496 c.i.d. Stroker long block base crate engines with forged components are built to accept power adders like turbochargers, superchargers, NOS, etc. They're built to deliver 561 hp and 512 lbs.-ft. of torque. The engines also include valve covers, an oil pan and timing cover. Compression ratio: 8.8:1 Engine specifications: --- BLOCK: * NEW BluePrint cast iron block * 4-bolt main * 4.500 in. bore * One-piece rear main seal * Mechanical fuel pump provision: Yes * Standard deck --- ROTATING ASSEMBLY: * New BluePrint forged crankshaft * 4.250 in. stroke * Forged H-beam 6.135 in. connecting rods * Forged pistons * Internal ---CYLINDER HEADS: * BluePrint aluminum cylinder heads * 119cc chamber * 2.30 in. intake / 1.88 in. exhaust valves * 316cc intake / 124cc exhaust runners * Cylinder heads feature a .300 in. raised exhaust port vs. an OEM casting * Must verify header/exhaust clearance ---CAM SPECS: * Cam type: Hydraulic roller * .540 Intake .560 exhaust * 242 intake / 248 exhaust duration * @ .050 - 114-degree lobe separation --- IGNITION TIMING: * 10-16 degrees and total timing 32-34 degrees ---NOTES: * Replaces BP49610CT * Built with dual keyway crankshaft for harmonic balancer * SFI harmonic balancer included on engine * Not for EGR * Must verify header/exhaust clearance
Not Yet Reviewed
$11,299.00
ATK High Performance Chevy LS3 415 short blocks are made to handle serious power. The foundation of any high performance engine is a rock-solid short block, so ATK designed and developed these to be just that. They feature a fully forged, balanced, and blueprinted rotating assembly that is available in a variety of configurations to fit naturally aspirated, nitrous, and forced induction builds, as well as those with 24 and 58-tooth cranks. ATK High Performance Chevy LS3 415 short blocks include the following: * GM LS aluminum blocks * Aligned and hone main bores * Manley 4340 forged crankshaft * 4.00 in. stroke * Manley 4340 H-beam connecting rods * Manley forged pistons
Not Yet Reviewed
$6,998.99
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$7,498.99
BluePrint Motorsports 632 c.i.d. Eliminator Power Adder Stroker engines are designed and built to be power adder-ready, whether you're looking at a turbo, supercharger, or nitrous oxide. The old adage of "there's no replacement for displacement" is becoming … dare we say, old? These days naturally aspirated engines just aren't enough for some drivers, and this long block is your solution! Details and specs: * 700 hp, 650 lbs.-ft. naturally aspirated * Compression ratio: 9.6:1 * Aluminum heads * Hydraulic roller cam BLOCK: * NEW BluePrint cast iron block * Manufactured and machined in the USA * 4-bolt main * 4.600 in. bore * One-piece rear main aeal * Tall deck (cylinder deck is appx. .400 taller / wider than OEM block) ROTATING ASSEMBLY: * New BluePrint forged crankshaft * 4.750 in. stroke * Forged H-beam 6.635 in. connecting rods * ARP 2000 Series bolts * Mahle Motorsports forged pistons * Precision gap, power adder piston rings * Internally balanced CYLINDER HEADS: * BluePrint aluminum cylinder heads (PS8012) * 119cc chamber * 2.30 in. intake / 1.88 in. exhaust valves * 358cc intake / 125cc exhaust runners * Cylinder heads feature a .300 in. raised exhaust port vs. an OEM casting * MLS head gaskets CAM SPECS: * Cam type: Roller * .698 / .698 lift * 272 / 282 duration @ .050 - 110 degree LSA ALSO INCLUDES: * Valve covers, oil pan, and timing cover * Dyno test results shipped with engine * SFI-rated dual keyway 8 in. balancer
Not Yet Reviewed
$16,449.00
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