461ci BBC Marine Crate Engine

461ci BBC Marine Crate Engine

461ci Marine Crate Engine 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 ready to assemble to your needed performance with a One Year Warranty


9.800″ Deck | 4.280″ Bore | 4.000″ Stroke | 6.135″ Rods | 500lb 3200-4600 rpm


  • Gen V 4 Bolt Main One Piece Real Seal Block Fully CNC Race Prepped
  • 4.280″ Max Bore, 9.8″ Deck, Block No External Fuel Pump Provision
  • Brass or Stainless Steel Life Time Freeze Plugs
  • GM 4.000″ Standard Externally Balanced Crank
  • GM 6.135″ I-Beam Steel Rods with 3/8 Bolts
  • King Main, Rod and Cam Bearing Set
  • 8:1 Compression New Cast Aluminum Pistons and Moly Rings
  • Competition Cams or Erson Performance or Marine Flat Tappet Cam
  • Competition Cams or Erson Flat Tappet Hydraulic Lifters
  • High Performance Double Roller Timing Set
  • GM Steel Timing Cover and TDC Verified Pointer
  • Externally Balanced 8″ GM Harmonic Damper
  • GM Oval Port Heads
  • GM Intake and Exhaust Valves
  • Hydraulic Springs and Retainers for Either Cam Shaft Desired
  • Complete Marine Performance Gasket Set
  • GM 1.7 Ratio 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 Dual Plane Intake Manifold and Spacer
  • Holley Marine 770 or QFT 750 cfm DP Carburetor
  • HEI Distributor, Coil, 8.5mm Wires and NGK Spark Plugs
  • AwesomeEngines® Free 48 State Freight


Hydraulic Roller Camshaft (HRC), Johnson Roller Lifters, Springs, Retainer Mild Performance 5500 Rpm Camshaft & Lifter Kit
+ $1275.00
Inconel Hot Hydraulic Roller Camshaft (IHHRC), Johnson ST Roller Lifters, Springs, TS Retainer Performance 6000 Rpm Camshaft & Lifter Kit
+ $1675.00
Dart 1900072M 275cc Marine Coated Aluminum Oval Port Heads, 850cfm Carburetor up to 600Lb-575Hp @ 5500 Rpm, (HRC) VTK
+ $2975.00
Dart IE 15100010M 308cc Marine Coated Steel Square Port Heads 489ci only, 850cfm Carburetor up to 600Lb-600Hp @ 6000 Rpm, (IHHRC) VTK
+ $2575.00
Dart IE 15370030 M 330cc Marine Coated Steel Square Port Heads 489ci only, 950cfm Carburetor up to 600Lb-625Hp @ 6000 Rpm, (IHHRC) VTK
+ $3575.00
489ci Ext-Bal Engine CNC Machined, Plate Honed Finished to a 4.280″ Bore, 4.250″ Stroker Nodular Crank, 6.135″ Rods, 87° Pump Gas 9:1 Pistons
+ $ 975.00
489ci Int-Bal 4340 Forged 4.250″ Crank, 6.385″ H Beam FF Rods ARP 7/16 Bolts, 10:1 91° Pump Gas JE or Wiseco Forged Pistons, Dampener
+ $2275.00
Dart Big M Ductile Splayed Cap Racing Block Fully CNC Race Prepped and up to 565ci for 275/308/330cc Head and IHHRC Engines
+ $1975.00

Dyno Tested and Tuned Using Exxon 87° or 91° Pump Gas Engines • HP Corrected to Sea Level

Free Freight of $300 Applies to Engine Shipped to a Commercial Address or a Terminal Closest to Your Zip Code for Pickup in the 48 States.

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