LS7 440" N/A - Nitrous Short Block

Available Qty: 0

$8,200.00

With a 4.130" bore and 4.125" stroke crank, this stout 440" unit will shake the pavement. Cruise the streets with an attitude and tear up the track with a shot of N2O reliably using custom forged Diamond pistons, Callies Compstar crank and rods.

Displacement: 440" Bore: 4.130"
Proven Power Rating: 850 RWHP w/ Nitrous Stroke: 4.125"
Compression Ratio: 12:1 w/ 70cc Chamber Rod Length 6.125"
Cylinder Head Compatibility: LS7 Oil System Type: Wet or Dry Sump

Block: Choose From Options
Crankshaft: Callies 4340 Compstar w/ LME Blueprinting Process
Connecting Rods: Callies Compstar Xtreme H-Beam w/ ARP 2000 7/16" Bolts
Pistons: Custom Diamond Pistons
Wrist Pins: Tool Steel 
Ring Pack: NPR Stainless Top (for high heat applications) Napier Second, 3mm Oil
Bearings: Clevite H-Series Mains & Rods, DuraBond One Piece Cam Bearings
Main Studs: ARP 

******ATTENTION******* GM HAS DISCONTINUED THE LS7 BLOCK. LME NO LONGER OFFERS NEW LS7 BLOCKS. PLEASE CHOOSE FROM THE OPTIONS WE PROVIDE, YOUR LS7 BLOCK, LSR OR DART BLOCK.

 

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