540 Big Block Chevy Marine Short Block
Marine Short Blocks

540 Big Block Chevy Marine Short Block $7,395

540 Big Block Chevy Marine Short Block Basic Short Shown
540BBC $7,395

New! Marine Short Blocks!
Built With The Same Meticulous Attention To Detail!


Take One Of Our Precision Machined Blocks And Then Paint It With Epoxy Primer Followed By (3) Coats Of Mercruiser Phantom Black Epoxy Paint. We Install Dart Coated Cam Bearings And Brass Freeze Plugs. All Clearances Are Set For Heavy Duty Marine Use.

  • Bore & Stroke
  • Compression Ratio
  • 4.500 x 4.250
  • 9.0 to 1

Different Compression Ratios Available


  • Dart Big "M" Block w/Splayed 4 Bolt Main Caps
  • Manley 4340 Non-Twist Fully CCW 4.250" Stroke Forged Steel Crank
  • Manley 4340 6.385" Forged Steel H-Beam Rods w/ARP 2000 Bolts
  • Clevite 77 "H" Series Main & Rod Bearings
  • Dart Coated Cam Bearings
  • JE 9.0-1 2618 Forged Aluminum Pistons
  • Heavy Wall 2618 Steel Wrist Pins
  • Total Seal Plasma Moly 1/16 1/16 3/16 File Fit Ring Set
  • Internally Balanced
  • Professionally Blueprinted and Assembled
Shafiroff Racing Engine Upgrade Packages
Camshaft Installation Package$895
Includes: SSRE/Comp Custom Marine Spec Hydraulic Roller Cam, Rollmaster Billet Timing Set w/IWIS Chain & Torrington Bearing, GM Black Epoxy Painted Steel Timing Cover, Cam Button and ARP Cam Bolts. Camshaft Installed and Degreed, Cam Button Shimmed To Installed Front Cover.
Camshafts
Solid Roller Cam Available $N/C
Lifters
Hi-Performance Solid or Hydraulic Roller Lifters. Call For Details. From$575
Timing
Cloyes 2 Piece Aluminum Timing CoverImageShafiroff Racing Available Options Close$195
Deluxe Short Block Version
Includes Camshaft Package
$2595
Includes: SSRE/Comp Custom Marine Spec Hydraulic Roller Cam, Rollmaster Billet Timing Set w/IWIS Chain & Torrington Bearing, Cam Button, ARP Cam Bolts, GM Black Epoxy Painted Steel Timing Cover w/Timing Pointer, ATI Super Damper Harmonic Balancer, Canton 10 Quart Marine Pan and Hi-Performance Oil Pump w/Canton Pick-Up. One Piece Oil Pan Gasket w/Sandwiched Steel Shim and Grommets. Oil Pan Mounted With Stud Mounting Kit. Completely Assembled With Camshaft Degreed And TDC Verified And Set.
Lifters
Hi-Performance Solid or Hydraulic Roller Lifters. Call For Details. From$575
Timing
Cloyes 2 Piece Aluminum Timing CoverImageShafiroff Racing Available Options Close$195
Shafiroff Racing Engine Options
Blocks
Dart Steel Billet Main Cap Upgrade $450
Machine Block and Install Lifter Valley Screen Kit $95
Dart Inner Valley Stud Kit (Improved Head Gasket Sealing) $95
Pistons - Pins - Rings - Bearings
Calico Coated Bearing Package $175
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