LS3 370 or 375 Cast Iron Short Block 

  • GM 6.0L LQ4/9 LY6 GEN 3 Cast Iron Block (4.030/4.065/4.070 Bore Specify)
  • GM Crank 3.622 stroke (24 or 58 tooth crank reluctor Specify) 
  • 6.125 Scat I-Beam Connecting Rods
  • ARP 8740 Rod Bolts
  • Mahle -4- -12 cc 2618 forged Pistons
  • Mahle power Ring Pack
  • Clevite Rod & Main Bearings
  • Dura-Bond Cam Bearings
  • Digitally Balanced Assembly
  • Fully Assembled
  • Accepts LS1, LS2, LS3, L92 Cylinder Heads
  • $700.00 Core Charge Included 


Allow 35-45 working days for assembly based on order.


Schwanke Engines LLC


Additional Options:

GM LS3 New Alum Block adds 1750.00 or 6349.00 for assemblied short block

 

Boost Upgrade: Includes 

2618 Forged Pistons Molnar power adder H-Beam Forged Rods & ARP 2000 bolts 

New GM ZO 6 Crankshaft 

Hellfire GFX Rings

ARP Main Studs

Teflon Clevite Coated H Bearings... Add $1495.00 


Melling High Volume Oil Pump... Add $150.00


Complete Engine Gasket Kit w/ Head Bolts... Add $395.00 

CNC LS3 Head Package (.610 Lift Springs) Available 

 

 

Shipping only to business address with fork lift or dock. Can ship to distribution center near you - No residential shipping!

International customers contact us with complete shipping address to for a freight quote.