468ci 450HP BBC Marine Crate Engine

468ci 450Hp BBC Marine Crate Engine


These Marine basic direct replacement Crate Motors are dyno test and tuned units. Blocks are prepared on our state of art 4-axis CNC machining center. The CNC corrects all block dimensions to a blue print near perfect condition. Each engine is dyno tested and tuned and 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 Connecting Rods
  • 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 Hydraulic Roller Lifters
  • Double Roller Heavy Duty Timing Set
  • Chrome Timing Cover Kit and TDC Pointer
  • Brand New Externally Balanced Harmonic Damper
  • GM Oval Port Steel Cylinder Heads set up for Application
  • Stainless Steel Intake and Exhaust Valves
  • Comp Cams or Erson 1.550 Hyd Roller Springs, 10° Retainers and Locks
  • Fel Pro Hi-Performance Racing Head Gaskets; and Marine Usage as Well
  • Comp Cams 1.7 Roller Tip Rocker Arms
  • Manley 3/8 x .080″ 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 Dual Plane 4150  Series Marine Intake
  • New Holley or Quick Fuel 750cfm Marine Double Pumper Carburetor
  • MSD Billet Dist, Wires and NGK Plugs
  • Dyno Tested and Tuned to Perfection

Any Other Upgrade or Option not Listed is Available if You Ask

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 Mark Gen IV Sportsman Water Cooled New Block Part #31243244 CNC 4 Axis Race Prepped
+ $1695.00
Dart Big M Sportsman or World New Siamese Splayed Cap Racing Block all CNC 4 Axis Race Prepped
+ $1995.00
4340 Steel Crank Shaft Internally Balanced with a New Dampener Included
+ $ 595.00
Tool Steel Light Weight Valve Spring Retainers for Higher RPM Usage and Sustained High RPM Time
+ $ 125.00
Comp Cams Hydraulic Roller Bee Hive Light Weight Valve Springs and Retainers for Higher RPM Usage and Sustained Higher RPM Time
+ $ 195.00
Comp Cams DRST Hydraulic Roller Lifters for Higher RPM Usage and Sustained High RPM Time
+ $ 495.00
Comp Cams or Erson Solid Roller Cam, Lifters, Rockers, Upgraded Valve Springs, Retainer, for High RPM Usage and Sustained High RPM Time
+ $ 495.00
Enconel Severe Duty Exhaust Valves for Higher RPM Usage and Sustained High RPM Time
+ $ 350.00
H-Beam 6.385″ 4340 Steel Rods with ARP 8740 Bolts
+ $ 395.00
Fel Pro #1071 MLS Severe Duty Marine Head Gaskets Installed
+ $ 125.00
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
Holley or QFT Marine Specific 850 cfm Application Carburetor
+ $ 350.00
Steel Billet Internal or External Fly Wheel for Marine or Manual Transmission Use
+ $ 350.00
Power Master 4.0 HP Gear Reduction Starter, SFI Flex-plate, ARP Flex-plate Bolts
+ $ 375.00
HD 10″ Proper Torque Converter For Your Particular Application, Gear Ratio, Tire and Transmission for Street Applications
+ $ 495.00
TH400 with Trans Brake and Complete Race Pack and Modified Direct Drum and HD Components (rated 850hp)
+ $1995.00
Water Cooled Marine Oil Cooler for Higher RPM Usage and Sustained High RPM Time
+ $ 595.00
Billet Specialties or March Pulley and Accessory Drive Kits for any Application (from)
+ $ 795.00
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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