LS7 Turn Key 427 CI 658 HP


LS7 Turn Key 427 CI 658 HP

from 18,995.00

This is a complete built engine sitting in our showroom. Customer has decided to go with a twin turbo build. The price includes accessories and a finish tune on our chassis dyno. 

  • Complete CNC machined Ls aluminum block fitted with Darton sleeves to 4.125" bore
  • New Lunati forged steel crankshaft
  • New Lunati forged steel connecting rods
  • Clevite H coated performance bearings
  • Forged Wiseco pistons with moly rings
  • Hand fit clearances 
  • Felpro gaskets
  • Double roller timing set
  • Melling oil pump
  • Computer balanced rotating assembly
  • Factory style roller camshaft 237/250 Duration @ .050"
  • New Morel high RPM tie bar roller lifters
  • .080" wall 4130 chrome moly pushrods 
  • LS7 1.8 rocker arms with upgraded trunion 
  • New engine swap stroker clearanced Holley oil pan 
  • Holley aluminum high rise intake
  • Rebuilt LS7 heads
  • GM coil packs
  • NGK spark plugs
  • New 102mm cable throttle body 
  • New Speartech wiring harness
  • Reflashed PCM
  • Stainless braided fuel line
  • Optional high torque mini starter
  • 160 degree thermostat
  • Titanium and Stainless steel valves 
  • High performance dual springs with titanium retainers
  • ARP Head bolts
  • GM balancer
  • Requires 93 octane
  • 11.78:1 compresion 
  • New aluminum water pump
  • Dyno tested and tuned (includes dyno sheet)
  • ID 1000 Injectors
  • Motor mount adapter plates to fit in older cars
  • Comes with 1 year unlimited mile warranty (see details at Our Warranty)

We had to pull this engine off the dyno due to a back up of engines needing to go on. If you want this engine give us about a week and we will get it back on the dyno and finish the tune. This engine made 658HP and still was climbing. Please call us if you don't want a drop in turn key package and we will reprice the engine with whatever you don't want. A deposit will be required before we schedule the engine back on the dyno. 

High torque mini starter:
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