350-427ci SBC Marine Crate Engines

350-427ci 500Hp SBC Marine Monster Crate Engines

The 350-427ci Marine Crate ENGINES are new direct replacement units for your marine needs. Built for any type of marine application where long term reliable power and performance is expected. New 4340 crank, H-beam rods, forged pistons, hydraulic roller cam, lifters, Dart correct/cc heads included. Dart Blocks are prepared on our state of art Centroid 4-axis machining center that corrects block dimensions to blue print perfect. Each and every engine is dyno tested and tuned for real power. This is the best, reliable, pump gas friendly perfect mannered running real Marine Crate Engine available.


9.000″ Deck |4.000- 4.185″ Bore | 3.48 to 4.125″ Stroke | 6.000″ Rods | up to 600Hp @ 6000RPM see upgrades


  • Dart31161111L/31161211L SHP Splayed 4 Bolt Main Race Blocks
  • AwesomeEngines® 190,000 PSI Head Stud Kit Plate Honed w/Block
  • Brass or Stainless Steel Life Time Freeze Plug Kit Installed
  • AwesomeEngines® 3.48 to 4.000″ Int/Bal Crankshaft (see upgrades)
  • AwesomeEngines® I-Beam Rods w/7/16 Bolts (see upgrades)
  • King “HP” Race Series Main and Rod Bearing Set
  • Wiseco Pro Series 8 to 11:1 Forged Racing Pistons
  • Total Seal Plasma Moly Ring Package
  • Comp Cams Marine Hydraulic Roller Cam (see upgrades)
  • Cloyes Heavy Duty Double Roller Timing Set
  • AwesomeEngines® CNC Engraved Polished Aluminum T/Cover
  • Comp or Morel Hydraulic Roller Lifters
  • AwesomeEngines® New Internally Balanced Harmonic Damper
  • Dart Iron 165cc SS to 230cc Ported Steel Heads (see upgrades)
  • LPC 2.02 to 2.08 x 1.600 Stainless Steel Valves (see upgrades)
  • Hydraulic Roller Complete Valve Train Package
  • Fel Pro Marine Hi-Performance Gasket Set
  • Manley 5/16″ x .105″ Wall Heavy Duty Push Rods
  • Comp Cams Long Slot Roller Tip Rockers (see upgrades)
  • AwesomeEngines® CNC Engraved Powder Coated V Covers
  • AwesomeEngines® Moroso Blue Printed Oil Pump Kit
  • AwesomeEngines® Moroso Marine 7qt Oil Pan
  • Motown Marine Aluminum Intake w/Brass Inserts
  • 8.5mm UTE Spark Plug Wires and NGK Plugs
  • HOLLEY 4150-600 to 850 cfm Marine or QFT Carburetor
  • AwesomeEngines® T-Shirt, (free 48 freight, see race news/engine warranty)

Available Options

Dart Iron 180-230cc Steel Heads (450+Hp on 427ci and 480hp w/454ci Engines)
+ $  475.00
Dart Iron 180-230cc Fully CNC Ported Steel Heads (500+Hp on 427ci and 540hp w/454ci Engines)
+ $1475.00
3.875 or 4.0″ 4340 Internally Balanced Steel Crank Upgrade from 414 to 427ci
+ $  475.00
454ci SBC Upgrade w/4.125″ Crank, 4.185″ Bore w/PBM-World Raised Cam Race Block for Max Power and Torque
+ $1975.00
Comp Cams Hot Hydraulic Roller Cam Package Including Beehive Springs, Tit Retainers for .550″ Cam
+ $  475.00
Steffs Kick Out 10qt. Hi-Performance Marine Oil Pan
+ $  475.00
T&D Sportsman Series Shaft Rocker System Installed
+ $  975.00
MSD Complete 6M Marine Ignition System Dyno Tested & Tuned For True Complete Drop In Engine Kit
+ $  775.00
AwesomeEngines® Custom Complete Engine Evacuation System Installed w/ all Fittings, Hoses and Air Cleaner
+ $  475.00
AwesomeEngines® CNC Engraved Logo Your Color choice Marine Monster Powder Coated V/Covers w/ Billet Oil Fill
+ $   195.00
Fast EZ or HOLLEY Dominator EFI Unit Installed for the Perfect Mannered Marine Late Model Engine
+ $2475.00

Dyno T&T w/Exxon 87° Pump Gas • HP Corrected to Sea Level

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