461ci 500Hp BBC Marine Crate Engine
461ci 500Hp Marine Crate Engine for watercraft are specifically built using the GM GenV one piece seal, blue print machined four bolt main block CNC square decked to 9.805″, bored 4.275″, then plate honed to 4.280″ final bore. Internals are a GM 4.0″ stroke standard journal externally balanced crank, GM 6.135 Rods, Sealed Power Pistons, Moly Rings then meticulously assembled, dyno tested and tuned for torque and power on our in house Stuska dyno using 87 octane pump gas.
$7495.00
9.800″ Deck | 4.280″ Bore | 4.000″ Stroke | 6.135″ Rods | 500lb/500hp @ 3800-5000 rpm
Components
- Gen V 4 Bolt Main 1 Piece Seal Block (no fuel pump mount)
- Brass or Stainless Steel Life Time Freeze Plugs
- GM 4.000″ Standard Size Externally Balanced Crank
- GM 6.135″ I-Beam Steel Rods with 3/8 Bolts
- King Standard Main and Rod Bearing Kit
- Sealed-Power Cast Aluminum 8:1 Pistons and Moly Rings
- GM Marine Hydraulic Roller Tappet Cam
- Morel Hydraulic Roller Tappet Lifters
- High Performance Double Roller Timing Set
- GM Steel Timing Cover and TDC Verified Pointer
- GM Externally Balanced Harmonic Damper
- GM Oval Port Race Prepped in House Heads
- GM Intake and Exhaust Valves
- Hydraulic Roller Valve Springs, Retainers and 7° Lock Kit
- Complete Marine Performance Gasket Set
- GM 1.7 Rockers, Guide Plates, Push-Rods and Fasteners
- GM Short CNC Engraved Aluminum Valve Covers
- GM High Pressure Oil Pump with Welded Pickup Tube
- GM 8 Quart Oil Pan System with Dipstick
- Edelbrock or Weiand Fresh Water Dual Plane Intake
- Holley or QFT 850 cfm Double Pumper Marine Carburetor
- HEI Distributor, Coil, 8.5mm Wires and NGK Spark Plugs
OPTIONS
JE or Wiseco 8.5:1 Compression Forged Flat Top Pistons Zero Deck Block
+ $1275.00
Hot Hydraulic Roller Camshaft (HHRC), Johnson Short Travel Roller Lifters, Springs, Tool Steel Retainers 5500 RPM Cam and Lifter Kit
+ $1675.00
Salt Water Aluminum GM or World Bronze Salt Water Inserts Machined Specifically in House
+ $ 400.00