468ci 450HP BBC Marine Crate Engine

468ci 450Hp BBC Marine Crate Engine


Marine direct replacement Crate Motors, or even for a street application with (cam change), are for long term reliable power and performance is required. Blocks are prepared on our state of art Centroid 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. We only have 10 available


  • 4 Axis CNC Blue Print Reconditioned GM V 9.800 4 Bolt Main Block
  • Brass or Stainless Steel Life Time Freeze Plugs Installed
  • Head Bolt Kit Installed and Plate Honed with Block
  • GM 4.0″ Externally Balanced Steel Crank with One Piece Rear Seal
  • GM I-Beam Full Floating 6.135 Dimple Rods with 7/16 Rod 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 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
  • Manley 2.19″ x 1.88″ Stainless Steel Intake and Exhaust Valves
  • Comp Cams or Erson 1.550 Hyd Roller Springs, 10° Retainers and Locks
  • FelPro 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
  • Melling 77 Oil Pump and Proper Pick Up
  • GM 7qt. 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 87° Pump Gas • Vacuum Pump • HP Corrected to Sea Level

Free freight is not included with this item. We will shipped to the nearest UPS freight terminal for your zip code in the 48 states costing no more than $400. Anything over that amount, handling fees, special insurance, residential, lift gate service, out of area charges, will apply for your zip code where you have this engine shipped to. Total cost of any extra charges over the $400 maximum allowed will be known to you before we ship.

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