468ci 500HP BBC Marine Crate Engine

468ci 500Hp BBC Marine Crate Engine


This Marine direct replacement HP Crate Engine is a complete dyno tested and tuned unit. One piece rear seal 4 bolt main Blocks are prepared on our state of art 4-axis Block CNC machining center. The CNC easily corrects all block dimensions to a blue print perfect condition. Each engine is professionally assembled then dyno tested and tuned for power and workmanship, comes with a 18 month warranty; (ask for exact details).


  • GM V 9.800 4 Bolt Main Block 4 Axis CNC Blue Print Prepped
  • Brass or Stainless Steel Life Time Freeze Plugs Installed
  • Head Bolt Kit Installed and Plate Honed with Block
  • GM 4.0″ Externally Balanced Nodular Iron Crank
  • GM I-Beam Full Floating 6.135 Steel Connecting Rods with ARP Bolts
  • Clevite or King Main and Rod Bearings
  • JE or Wiseco Forged 10:1 Compression Pistons
  • Plasma Moly File To Fit Hi-Performance Ring Set
  • Comp Cams Or Erson Marine or Street Hydraulic Roller Cam
  • Comp Cams or Erson Retro Fit Hydraulic Roller Lifters
  • Double Roller Heavy Duty Timing Set
  • GM Black Timing Cover Kit and TDC Pointer
  • Brand New Externally Balanced Harmonic Damper
  • Dart Iron Eagle 310cc #15100112 Steel Cylinder Heads
  • Dart Stainless Steel 2.25 Intake and 1.88 Exhaust Valves
  • Dart 1.550 Hyd Roller Springs, 10° Retainers and Locks
  • Fel Pro Hi-Performance Marine Head and all Other Gaskets
  • Comp Cams 1.7 Roller Tip Rocker Arms
  • Manley 3/8 x .135″ Wall Hi-Performance Push Rods
  • GM Short Design Valve Covers for Exhaust Manifolds
  • GM Oil Pump and Proper Pick Up Tube Tig Welded
  • GM 8qt. Oil Pan with One Piece Oil Pan Gasket
  • Edelbrock Performer RPM Dual Plane 4150  Series Intake Manifold
  • Holley or Quick Fuel 850cfm Marine Double Pumper Carburetor
  • MSD Billet Dist, Wires and NGK Plugs
  • Dyno Tested and Tuned to Perfection

Any Upgrade or Option not Listed is Available

GM Gen V Siamese Water Cooled 4 Bolt Main Cap New Block 4 Axis CNC Fully Race Prepped (502ci available with this block)
+ $1295.00
Dart Gen IV Sportsman Water Cooled New Block Part #31243244 CNC 4 Axis Race Prepped
+ $1695.00
4340 Steel Crank Shaft Internally Balanced with a New Internally Balanced Dampener Included
+ $ 495.00
4340 H or I Beam Steel Rods with 7/16 ARP Rod Bolts
+ $ 295.00
Tool Steel Light Weight Valve Spring Retainers for Higher RPM Usage for 4000-4400 rpm sustained applications
+ $ 125.00
Pac Hydraulic Roller Bee Hive Light Weight Valve Springs and Retainers for 4000-4400 rpm sustained applications
+ $ 245.00
Comp Cams DRST Hydraulic Roller Lifters for Higher RPM Usage for 4000-4400 rpm sustained applications
+ $ 595.00
Comp Cams or Erson Solid Roller Cam, Lifters, Rockers, Upgraded Valve Springs, Retainers for 4000-4400 rpm sustained applications
+ $ 495.00
Dart M Series Heads with Enconel Severe Duty Exhaust Valves for Higher RPM Usage for 4000-4400 rpm sustained applications
+ $ 595.00
H-Beam 6.385″ 4340 Steel Rods with ARP 8740 Bolts and Higher Pin Height Forged Piston Package for 4000-4400 rpm sustained applications
+ $ 395.00
Steffs 12-14 Qt. High Performance Marine Oil Pan and Special Oil Pump Kit for Higher RPM Usage and Sustained High RPM Time
+ $ 695.00
Jesel or T&D Sportsman Shaft Rocker System Installed for the Ultimate Valve Train Stability
+ $ 995.00
World Products Marine Intake Manifold with Bronze Inserts for Salt Water Passage Deterioration
+ $ 395.00
Steel Billet Internal or External Fly Wheel for Marine or Manual Transmission Use
+ $ 350.00
Power Master #9500 18:1 Compression 4.4:1 Gear Reduction New Starter
+ $ 375.00
AwesomeEngines® Powder Coated CNC Engraved Tall or Short Valve Covers that will not Fade or Oxidize at all (choices of colors available)
+ $ 250.00

Dyno Tested and Tuned with Exxon 91° Pump Gas • Vacuum Pump • HP Corrected to Sea Level

Free insurance and freight of $450 applies to this item being shipped to a UPS terminal or commercial address in the con. 48 states for your zip code. Any handling fees, residential, lift gate service, out of area charges may apply over the $450. Total cost of all charges if any will be known to you before we ship.

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