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Boost ready LS3 long block comes with:


  • 6.2 liter block rated for 15 PSI
  • Forged 4340 8-bolt crank
  • Forged 4340 rods with ARP rod bolts
  • Mahle boost pistons (better than GM B15)
  • Boost ready camshaft
  • New GM lifters
  • Heavy duty push rods
  • Melling oil pump
  • CNC ported 6.2 heads
  • Inconel stainless exhaust valves (better than GM B15)
  • Stainless intake valves (better than GM B15)
  • Dual Manley valve springs (better than GM B15)
  • Manley locks and retainers
  • Upgraded stock rockers and bolts
  • ARP head studs

Additional information

Weight 500 lbs
Dimensions 48 × 48 × 36 in

This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit