$18,499
-
The LSx 427ci Boosted Complete Engine was built for customers that are looking to run 20-30 psi of boost and 1000hp +.
Compression Ratio: 9.5:1
Operating Range: 2500 – 6700rpm
Required Fuel: 91+ Octane Pump Gasoline
BLOCK SPECIFICATIONS
Block:
- New GM LSx Cast Iron Block
- Zero Decked
- Bored 4.125”
- Honed with Torque Plates and Pressure Washed
- New Durabond Cam Bearings Installed
- Line Honed
- ARP Main Studs
Pistons:
- Wiseco Forged Pistons, tool steel wrist pins
Bearings:
- Clevite H-Series Main and Rod Bearings
Lifters:
- Comp Cams Custom Hydraulic Roller
Covers:
- GM Oil Pan (Camaro, Corvette, GTO or Truck)
- GM Timing Cover
- GM Rear Cover
- GM Lifter Valley Cover
- GM Valve Covers
Damper:
- Powerbond SFI
- ARP Damper Bolt
Crank:
- Callies Dragon Slayer 4340 Forged Steel
- 4.000” stroke
- Internally Balanced Front and Rear
Rods:
- Callies 4340 Ultra Forged H-Beam
- 6.125” Length
- ARP 2000 Rod Bolts
Rings:
- Stainless Steel Rings Gapped for Boost
Camshaft:
- Comp Cams Hydraulic Roller
Timing Sets:
- Cloyes Billet Roller Hex Adjust Z-Chain
Oil Delivery:
- Melling Performance
- GM Pick Up Tube
- GM Windage Tray
Gaskets:
- Cometic MLS Head Gaskets .051”
- GM Cover Gaskets
CYLINDER HEAD SPECIFICATIONS
Type:
- Golen Aftermarket LS Aluminum CNC Ported
- Three angle performance valve job
Intake Valves:
- Stainless Steel 2.20”
Exhaust Valves:
- Extreme Duty Inconel Stainless Steel 1.6”
Head Bolts:
- ARP Performance Heads Studs 6-bolt
Combustion Chamber:
- 70cc
Flow:
- 380CFM @ .650” Lift
Spring Kit:
- Polished Double Valve Spring
- Titanium Retainers and Hardened Locks
Rocker Arms:
- GM Factory 1.7 Ratio, Comp Cam Trunion Upgrade
Pushrods:
- Smith Brothers 3/8 .083” Wall Hardened
Ignition System:
- Autolite Racing Spark Plugs
Dyno Test Service:
- Run Engine for Full Break In and Power Test
- 2 Oil Changes using Joe Gibbs Break In Oil
- Graphs Listing HP, Torque and all Engine Vitals
Additional information
Weight | 500 lbs |
---|---|
Dimensions | 38 × 26 × 36 in |