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 4.000″ Stroke | 6.000″ Rods | up to 600Hp @ 6000RPM see upgrades


  • Dart31161111L/31161211L SHP Splayed 4 Bolt Main Race Blocks
  • ARP 190,000 PSI Head Bolt Kit Plate Honed with the Block
  • Brass or Stainless Steel Life Time Freeze Plug Kit
  • 4340 3.48-4.000″-350ci or 4340 4.000-4.125″-427ci Int/Bal Crank
  • 4340 I-Beam Stroker Rods and 7/16 Bolts
  • King “HP” Race Series Main and Rod Bearing Set
  • JE, Wiseco or Carrillo Pro Series -5.0cc Forged Racing Pistons
  • Total Seal Plasma Moly Ring Package
  • Competition Cams Marine Hydraulic Roller Cam
  • Cloyes Heavy Duty Double Roller Timing Set
  • Polished Aluminum Timing Cover
  • Competition Cams or ERSON Hydraulic Roller Lifters
  • 8″ Internally Balanced Harmonic Damper
  • Dart Iron 165cc SS to 230cc Ported Steel Heads
  • 2.02 to 2.08 x 1.600 Stainless Steel Valves
  • 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
  • AwesomeEngines® CNC Engraved Powder Coated V Covers
  • Moroso Oil Pump Kit with Tig Welded Pickup
  • Moroso Marine 7qt Oil Pan and One Piece Oil Pan Gasket
  • Motown Marine Aluminum Intake with Brass Inserts
  • MSD 8.5mm Spark Plug Wires and NGK Plugs
  • HOLLEY 4150-600 to 850 cfm Marine or QFT Carburetor
  • AwesomeEngines® Free 48 State Freight

Available Options

Dart Iron 180-230cc Steel Heads (450+Hp on 427ci and 480hp
+ $ 475.00
Dart Iron 180-230cc Fully CNC Ported Steel Heads (510+Hp on 427ci)
+ $1275.00
AFR 220cc Competition Fully CNC Ported Cylinder Heads with 2.08/1.60 Intake and Exhaust Valves
+ $1475.00
427ci Engine with 4.0″ 4340 Internally Balanced Crank and 4.125″ Dart SHP Block
+ $ 375.00
Competition Cams or ERSON Hot Hydraulic Roller Cam Package Including Beehive Springs, Tit Retainers
+ $ 475.00
Steffs Kick Out 10qt. Hi-Performance Marine Oil Pan
+ $ 475.00
JESEL or 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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