Chevy LS 427 LS7 Aluminum Short Block

Chevy LS 427 LS7 Aluminum Short Block

Chevy LS 427 LS7 Aluminum Short Block Short Deluxe Shown
New! 427 LS7
Short Block $6,895

Legendary 427 Numbers! An Affordable, High Quality Precision Short Block For The LS Enthusiast. Brand New GM LS7 Aluminum Blocks Combined With Callies/Compstar 4340 Forged Steel Crank And 4340 Forged Steel H-Beam Rods. Custom Wiseco 2618 Forged Aluminum Pistons Complete This High Quality Build. Every Short Block Is Balanced, Clearanced And Hand Fitted By Our Experienced Team Of Race Engine Builders.

  • Bore & Stroke
  • Compression Ratio
  • 4.125 x 4.000
  • See Chart Below


Hand Built & Individually Assembled!

  • GM Performance LS7 Aluminum Block w/6 Bolt Billet Caps
  • Callies/Compstar 4340 Forged Steel Crank w/58T Reluctor Wheel (1,2)
  • Callies/Compstar 4340 6.125" H-Beam Forged Steel Rods w/ARP 8740 Bolts
  • Custom Wiseco 2618 Forged Aluminum Pistons w/Coated Skirts
  • 1.2/1.2/3.0MM Premium Steel Ring Set
  • Clevite 77 H-Series Main & Rod Bearings
  • Internally Balanced w/Mallory Heavy Metal
  • Professionally Blueprinted and Assembled
Camshaft Installation Package$750
Includes: Custom SSRE/Comp Cam Steel Billet Hydraulic Roller Cam, Cam Thrust Plate & Rollmaster Single Roller Timing Set w/IWIS Chain. Camshaft Installed and Degreed.

Custom Designed Camshaft Profile Based On Your Individual Application.
Package Options
Cloyes 9-3672TX9Z Timing Set w/Single Roller "Z" Chain and Steel Billet Sprockets $125
Deluxe Short Block Version
Includes Camshaft Package
$2195
Includes: UltraStreet Hydraulic Roller Cam, Cam Thrust Plate, Rollmaster Single Roller Timing Set w/IWIS Chain, GM Front Cover w/Seal, ATI Harmonic Balancer, Melling Hi-Performance Oil Pump, Rear Cover w/Seal and Holley Retrofit Hot Rod Pan & Pickup. Assembled With Camshaft Degreed And TDC Verified And Set
Package Options
Hi-Rev Performance Hydraulic Roller Lifters (16), Lifter Buckets (4) and Bolts (4) $395
Holley Road Race Baffle For The Retrofit Muscle Car Oil Pan add$225
GM Vehicle Specific Oil Pan $Call
Blocks
Drill & Tap Block For 1/2" Head Bolt Holes. $300
Crankshafts
Callies Dragonslayer 4340 Forged Steel Crank (58T Reluctor Wheel Standard) $995
Connecting Rods
Molnar Power Adder 4340 H-Beam Rods w/ARP 2000 Asymmetrical Bolts $200
Pistons - Pins - Rings - Bearings
Inverted Dome Style Piston $95
Additional Parts - Labor - Accessories
ARP Metric Head Stud Kit (15 Bolt Heads) $295
ARP 1/2" Head Stud Kit (15 Bolt Heads) $395
Cometic MLS (Multi Layered Steel) Head Gaskets (.040/.045/.051 Thickness) Each$95
Cometic MLS (Multi Layered Steel) Head Gaskets (.060/.066 Thickness) Each$115