Chevy 415 LS3 Aluminum Power Adder Short Block
LS Series

Chevy 415 LS3 Aluminum Power Adder Short Block
Stage I Priced From $6,695

Chevy 415 LS3 Aluminum Power Adder Short Block Basic Short Shown
415 LS3 S/C
Short Blocks

New Configurations! The Perfect Short Block Foundation For The Supercharged/Turbo LS Enthusiast! Engineered For Up To 20 lbs Of Boost.

Brand New GM LS3 Aluminum Block Combined With Your Choice Of 4340 Forged Steel Crank And 4340 Forged Steel H-Beam Rods With ARP Bolts. Forged 2618 Aluminum Pistons And Premium Rings Specifically Designed For Turbo And Boost Applications Complete This High Quality Build. Every Short Block Is Machined, Balanced, Clearanced And Hand Fitted By Our Experienced Team Of Race Engine Builders.

  • Bore & Stroke
  • Compression Ratio
  • 4.065 x 4.000
  • 9.5 to 1



Supercharged / Turbo / Nitrous

Shafiroff Winter Sale
$ 200 Off Our Regular Price - Sale Price $ 8,295

Stage I

  • GM LS3 Aluminum Block w/6 Bolt Caps
  • GM Main Studs
  • Lunati 4340 Forged Steel Crank (1)
  • Callies/Compstar 4340 Forged Steel Rods
  • ARP 2000 Rod Bolts
  • CP or JE/SRP 2618 Forged Aluminum Pistons
  • Heavy Wall Wrist Pins
  • 1.5/1.5/3.0MM Premium Ring Set
  • (Gas Nitrided Top Ring / Napier 2nd Ring)
  • Clevite 77 H-Series Main & Rod Bearings
  • Internally Balanced w/Mallory Heavy Metal
  • Professionally Blueprinted and Assembled
$ 6,695

Stage II

  • GM LS3 Aluminum Block w/6 Bolt Caps
  • ARP Main Studs
  • Manley 4340 Non-Twist Forged Steel Crank (1,2)
  • Manley H-Tuff 4340 Forged Steel Rods
  • ARP 2000 Rod Bolts
  • Wiseco 2618 Forged Aluminum Pistons w/Coated Skirts
  • H13 Steel Wrist Pins
  • 1.2/1.5/3.0MM GFX Ring Set
  • (Steel Top Ring / Napier 2nd Ring)
  • Clevite 77 H-Series Main & Rod Bearings
  • Internally Balanced w/Mallory Heavy Metal
  • Professionally Blueprinted and Assembled
$ 7,495

Stage III

  • GM LS3 Aluminum Block w/6 Bolt Caps
  • ARP Main Studs
  • Callies/Compstar 8 CW 4340 Forged Steel Crank (1,2)
  • Callies Ultra-H 4340 H-Beam Steel Rods
  • Callies/ARP Ultra Bolts
  • Diamond L2K 2618 Forged Aluminum Pistons
  • H13 Steel Wrist Pins
  • 1.5/1.5/3.0MM Premium Ring Set
  • (AP Steel Top Ring / Napier 2nd Ring)
  • Clevite 77 H-Series Main & Rod Bearings
  • Internally Balanced w/Mallory Heavy Metal
  • Professionally Blueprinted and Assembled
$ 8,495
  • Footnotes:
  • (1) 58T Reluctor Wheel Standard. 24T Reluctor Wheel Available At No Extra Charge
  • (2) Available With LS7 Dry Sump Style Longer Crank Snout For An Additional $150
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.
Deluxe Short Block Version
Includes Camshaft Package
$1750
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
LS9 Block. 319-T7 Aluminum Alloy, Steel Billet Main Caps, Large Head Bolts, Improved Webbing and Machined For Piston Oilers. $1295
CNC Drill & Tap Block For 1/2" Head Bolt Holes. $450
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
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