Chevy LS 427 LS Next Power Adder Short Blocks
LS Series

Chevy LS 427 LS Next Power Adder Short Blocks
Stage I Priced From $8,495

Chevy LS 427 LS Next Power Adder Short Blocks Short Block w/Deluxe Package Shown
388/427
LS Next
Short Blocks

Looking To Run An LS Platform Engine With A Turbo, Supercharger Or Nitrous? You're Going To Need One Of These!!

Order One Of Our 427 Short Blocks For A Strong And Reliable Foundation. Just Pick Your Level Of Strength And We Supply Those High Quality Parts Along With Our World Famous Precision CNC Machine Work And Balancing. The Finishing Touch Is One Of Our Ultra Experienced Race Engine Assemblers Puts Your Short Together With Exact Blueprint Tolerances And The Extra Care Only A True Professional Can Deliver.

  • 388 Bore & Stroke
  • 427 Bore & Stroke
  • Compression Ratio
  • 4.125 x 3.622
  • 4.125 x 4.000
  • 9.5 to 1



Supercharged / Turbo / Nitrous

Stage I

Rated For Up To 1200 HP

  • Dart SHP LS Next Block
  • ARP 7/16" Main Cap Bolts
  • Callies/Compstar Fully CCW 4340 Steel Crank (1,2)
  • Callies/Compstar 4340 H-Beam Forged Rods
  • ARP 2000 Rod Bolts
  • Wiseco 2618 Forged Pistons
  • 9310 Tool Steel Wrist Pins
  • GFX Steel Ring Set
  • Clevite 77 "H" Series Main & Rod Bearings
  • Complete Assembly Internally Balanced
  • Mallory Heavy Metal Included (3)
$ 8,495

Stage II

Rated For Up To 1500 HP

  • New! Dart SHP "Pro" LS Next Block
  • ARP 7/16" Main Cap Studs
  • Callies/Compstar Fully CCW 4340 Steel Crank (1,2)
  • Molnar Power Adder 4340 H-Beam Forged Rods
  • ARP 2000 Asymmetrical Rod Bolts
  • Diamond LSX 2K 2618 Forged Pistons
  • H13 Tool Steel Wrist Pins
  • AP Steel Ring Set
  • Clevite 77 "H" Series Main & Rod Bearings
  • Complete Assembly Internally Balanced
  • Mallory Heavy Metal Included (3)
$ 9,495

Stage III

Rated For Up To 2000 HP

  • New! Dart SHP "Pro" LS Next Block
  • ARP 7/16" Main Cap Studs
  • Callies Magnum Fully CCW 4340 Steel Crank (1,2)
  • Oliver Speedway Billet Rods
  • Oliver/ARP 7/16" Rod Bolts
  • Diamond LSX 2K 2618 Forged Pistons
  • H13 Tool Steel Wrist Pins
  • AP Steel Ring Set
  • Clevite 77 "H" Series Main & Rod Bearings
  • Complete Assembly Internally Balanced
  • Mallory Heavy Metal Included (3)
$ 11,450
  • Footnotes:
  • (1) 58T Reluctor Wheel Standard. 24T Reluctor Wheel Available at No Extra Charge
  • (2) Fully Center Counterweighted Design
  • (3) If Required
Camshaft Installation Package$850
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
Hi-Rev Performance Hydraulic Roller Lifters (16), Lifter Buckets (4) and Bolts (4) $395
Deluxe Short Block Version
Includes Camshaft Package
$1995
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 GM Performance Muscle Car Oil Pan w/Full Length Windage Tray & Pickup. Assembled With Camshaft Installed and Degreed.
Package Options
Hi-Rev Performance Hydraulic Roller Lifters (16), Lifter Buckets (4) and Bolts (4) $395
GM Vehicle Specific Oil Pan $Call
Holley Muscle Car Retrofit 6 Quart Oil Pan Includes Custom GM Full Length Windage Tray and Holley "Road Race" Baffle Kit $465
Moroso Street/Strip 7 Quart Welded Steel Oil Pan Includes Custom GM Full Length Windage Tray and Baffle KitImage Close$395
Blocks
Upgrade To Concept Performance LSR Aluminum Block.Image Close$5000
ARP Main Stud Kit (Installed Before Block Machine Work) $295
Pistons - Pins - Rings - Bearings
Custom Compression Ratios Available $Call
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$125
Cometic MLS (Multi Layered Steel) Head Gaskets (.060/.066 Thickness) Each$145