LS2 402" Force Induction Short Block

Available Qty: 0

$8,750.00

Beefed up cylinder walls of the LS2 make for a more rigid base that can handle plenty of boost for your daily driver to digest. Constructed square with 4.005" forged Wiseco pistons and 4.000" Callies Compastar crank, this plant will turn your daily driver into a daily ripper.

Displacement: 402" Bore: 4.005"
Proven Power Rating: 1000 HP Stroke: 4.000"
Compression Ratio:

9.0 - 10.5 :1

Rod Length 6.125"
Cylinder Head Compatibility: LS1, LS2, LS3, LSA, LS9 Oil System Type: Wet Sump

Block: GM LS2 6.0L Aluminum
Crankshaft: Callies Compstar w/ LME Blueprinting Process
Connecting Rods: Callies Compstar H-Beam w/ARP 2000 7/16" Bolts
Pistons: Wiseco Forged FI (.300" material above top ring land)
Wrist Pins: Standard Wiseco
Ring Pack: NPR Stainless Top (for high heat applications) Napier Second, 3mm Oil
Bearings: Clevite H Series Mains & Rods
Main Studs: ARP 


***CORE EXCHANGE SHIPPING: LME is happy to assist you in shipping your block and crankshaft cores to help you save money. Exchanging your block & crank cores helps reduce the overall engine build cost without sacrificing quality. We can have your existing shortblock picked up at a location convenient for you.


LME Standard Shortblock Blueprinting Process:

  • Block is fully deburred & inspected for flaws

  • Cylinders diamond honed with torque plates for optimal clearance per application

  • Crankshaft journals indexed & trued to exact tolerance

  • Optimal cylinder geometry achieved with diamond hone and surface finish verified with profilometer

  • Chamfered oil holes for improved oiling to bearings

  • Cylinders machined for rod clearance per application

  • Crankshaft journals polished to 2 Ra or better surface finish

  • Block and components meticulously deburred & cleaned after machining process

  • Crankshaft balanced within ¼ oz-in tolerance

  • All five main bearings & all eight rod bearing clearances measured and adjusted for application

  • Connecting rod housing bores checked & adjusted for optimal roundness & size

  • Ring are precision file fit per application

  • Piston pin bores measured & adjusted for application

  • Cam bearings installed and test cam fitted to ensure smooth rotation

  • Block aline honed and set to low of spec for maximun bearing crush

  • All oil galley plugs and dowel pins installed

  • Deck surfaces machined perpendicular to mains & deck height set for optimal quench

  • Meticulous final assembly of shortblock

  • Cylinders bored (when applicable) on 4 axis CNC perpendicular to mains giving you a true 90o  V8

  • All tolerances, clearances, machining specs, and part numbers are recorded and documented in build sheet