427 Small Block Chevy Pump Gas Short Block
Pump Gas Short Blocks

427 Small Block Chevy Pump Gas Short Block $6,395

427 Small Block Chevy Pump Gas Short Block Basic Short w/Cam Package Shown
402/427SBC $6,395

The Same Shortblock That We Have Been Using In Our Popular 427 RealStreet Engine Is Now Available Separately!

  • Bore & Stroke
  • Compression Ratio
  • 4.125 x Footnote (2)
  • See Chart Below

Chamber Volume66cc72cc76cc
402 Flat Top (-6cc)10.810.29.8
402 Dished (-16cc)9.69.18.8
427 Flat Top (-6cc)11.510.810.4
427 Dished (-20cc)10.09.59.1
Ratio Computed With .040" Gasket

  • Dart SHP Block w/Splayed 4 Bolt Main Caps
  • SSRE/Scat 4340 Steel Crank (1)(2)
  • Scat 4340 6.000" H-Beam Steel Rods
  • Clevite 77 Main & Rod Bearings
  • Custom 9.5-1 Forged Aluminum Pistons
  • Plasma Moly Ring Set
  • Internally Balanced
  • Professionally Blueprinted and Assembled
  • Footnotes:
  • (1) Precision machined in USA to our custom specifications.
  • (2) 3.750" Stroke on 402 / 4.000" Stroke on 427.
Shafiroff Racing Engine Upgrade Packages
Camshaft Installation Package$895
Includes: UltraStreet Hydraulic Roller Cam, Cloyes Billet True Roller Timing Set w/Torrington Bearing, Official GM Performance Chrome Timing Cover. Camshaft Installed, Degreed-In And Checked For Proper Stroker Clearance.
Package Options
525HP or 565HP Cam - Your Choice! $N/C
Hi-Rev High Performance Hydraulic Roller Lifters (16), Lifter Guides (8) and Spider (1) $395
Cloyes 2 Piece Aluminum Timing CoverImageShafiroff Racing Available Options Close$175
Deluxe Short Block Version
Includes Camshaft Package
$1595
Includes: UltraStreet Hydraulic Roller Cam, Cloyes Billet True Roller Timing Set w/Torrington Bearing, Genuine GM Performance Chrome Timing Cover and Tavia Pointer, Hi-Performance Harmonic Balancer, SSRE/Moroso Street & Strip Oil Pan w/Passenger Side Dipstick, Hi-Performance Oil Pump w/Welded Pick-Up. All Gaskets, Seals And Hardware. Completely Assembled With Camshaft Installed and Degreed.
Package Options
525HP or 565HP Cam - Your Choice! $N/C
Hi-Rev High Performance Hydraulic Roller Lifters (16), Lifter Guides (8) and Spider (1) $395
Cloyes 2 Piece Aluminum Timing CoverImageShafiroff Racing Available Options Close$175
Shafiroff Racing Engine Options
Additional Parts - Labor - Accessories
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
SFI Heavy Duty Flexplate & ARP Bolt Package $150
Boninfante Severe Duty SFI Flexplate & ARP Bolt PackageImageShafiroff Racing Available Options Close$229
Boninfante SFI Billet Flexplate & ARP Bolt PackageImageShafiroff Racing Available Options Close$395
PowerMaster Hi-Torque Mini StarterImageShafiroff Racing Available Options Close$229
Painless Performance Hot Shot Relay Kit (Recommended for above starter) $39
Lucas Break In Oil. Call For Viscosity Recommendation. Priced Per Quart. Quart$8