Other products by ATECO ENGINES
Item #: 496/550
Our Price: USD $9,980.00


More About GM/Chevy Mark/Gen IV Marine Big Block 496CI/550HP Stroker Long Block - INTAKE TO OIL PAN:

Westcoast Offshore Marine Parts offers Pro Built Marine Engines at highly Competitive Prices. Our Pro Engine Builders have over thirty years’ experience in the Racing and Marine Engine business and we are one of the only high performance marine engine builders in the marketplace to offer a full two year warranty.

GM/Chevy Mark/Gen IV Marine Big Block 496CI/550HP Stroker Long Block Details:

  • Fully Blueprinted, Reconditioned GM Gen IV/Mark IV 4-Bolt Block
  • New Dowels, Galley Plugs, 1 piece Cam Bearings and Brass Freeze Plug
  • ISKY Hydraulic Roller Camshaft
  • ISKY Hyd Lifters
  • Double Roller 3-Piece Timing Set
  • Camshaft is degreed and secured with a Cam Button and Retainer Plate
  • Scat Forged 4.25" Stroke Crankshaft
  • Scat 6.385 Pro-comp I Beam Connecting rods w/ 7/16 ARP Rod Bolts
  • JEP/SRP Forged Aluminum Pistons
  • Clevite/King Performance Rod & Main Bearings
  • JEP Moly Rings
  • Fully Balanced to Within ½ of 1 Gram
  • Reconditioned GM Rectangular Port Castings w/ Thin Wall Bronze Guides, New Hardened Exhaust Valve Seats
  • REV Severe Duty 2.190 Intake and 1.890 Inconel Exhust Valves
  • ISKY Springs, Retainers, Locks & Seals
  • 1 Piece Pushrods
  • Scorpion 1.7 Roller Rocker Arms
  • Aluminum Timing Cover and Front Seal
  • Harmonic Balancer and New Bolt
  • Billet Timing Pointer, Calibrated to TDC
  • Melling High Volume Oil Pump and Pickup Tube Welded
  • Melling Hardened Oil Pump Drive Rod
  • Marine Oil Pan

Give us a call and let our professionals help with your horsepower needs today.


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