454ci 475 Hp BBC Marine Crate Engine

454ci 475 Hp BBC Marine Crate Engine

454ci 475 Hp Marine Crate Engines are direct replacements for 87° pump gas applications. Blocks are prepared on our state of art Centroid 4-axis CNC machining center to blue print perfect specifications. Each engine is verified for perfection by being broken in correctly then dyno tested and tuned properly. You receive the best product, power, price and performance either stock or performance oriented camshaft. See Options Below for anything you could want and they are in stock with a One Year Warranty



  • GM Gen V 4 Bolt Main Block Fully CNC Race Prepped to 4.280″ Bore
  • 4.280″ Max Bore, 9.8″ Deck, Block does not have External Fuel Pump
  • Brass or Stainless Steel Life Time Freeze Plugs
  • GM 4.000″ Fresh Externally Balanced Crank
  • GM 6.135″ Fresh I-Beam Steel Rods with 3/8 Bolts
  • King Main, Rod and Cam Bearing Set
  • 8.25:1 Compression New Cast Aluminum Pistons and Moly Rings
  • Competition Cams 11-600-4 Thumper or Stock Hydraulic Cam
  • Competition Cams or Erson Hydraulic Lifters
  • High Performance Double Roller Timing Set
  • GM Steel Timing Cover and TDC Verified Pointer
  • Externally Balanced 8″ GM Harmonic Damper
  • GM Small Oval Port Heads Totally Reconditioned
  • GM Intake and Exhaust Valves
  • Hydraulic Springs and Retainers for Either Cam Shaft Desired
  • Complete Fel Pro Marine Performance Gasket Set
  • GM 1.7 Ratio Pedestal Rockers, Guide Plates, Push-Rods and Fasteners
  • GM Short CNC Engraved Aluminum Valve Covers
  • M77 High Pressure Oil Pump with Welded Pickup Tube
  • GM 8 Quart Oil Pan and Dipstick
  • Edelbrock Performer 2.0 RPM Intake Manifold
  • HOLLEY or QFT Marine 750cfm Carburetor with Electric Choke
  • HEI Distributor, Coil, 8.5mm Wires and NGK Spark Plugs
  • AwesomeEngines® Free 48 State Freight


GM Gen IV Block with Provision for External Fuel Pump and 2 Piece Rear Main Seal Fully CNC Race Prepped to 4.280″ and 9.800 Deck Height
+ $ 275.00
Competition Cams 11-600-8 Hydraulic Roller Thumper Cam, Spring and Lifter Kit. This cam has some Bump and Works very well for the Thumping Sound
+ $ 575.00
JE or Wiseco Forged 10:1 Racing Pistons and Plasma Moly File to Fit Ring Set or KB Hypereutectic High Performance Pistons
+ $ 375.00
489 ci Rotator with 4.280″ Bore, 4.250″ Stroke, Eagle or Scat Crank, Stroker Pistons
+ $ 975.00
Pro Header Oval Port High Performance Aluminum Cylinder Heads with 2.25/1.880 Valves 560Hp (fresh water only)
+ $ 750.00

Dyno Tested and Tuned Using Exxon 87° Pump Gas • HP Corrected to Sea Level

Free Freight of $250 Applies to Engine Shipped to a Commercial Address or a Terminal Closest to Your Zip Code for Pickup in the 48 States.

Comments are closed.

Skip to toolbar