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Blueprint Engines Big Block Chevy Marine 496ci/ 460HP/ 515TQ

Blueprint Engines
Blueprint Engines Big Block Chevy Marine 496ci/ 460HP/ 515TQ

Product images may differ from actual product appearance.

Blueprint Marine Engines are a great choice for reliable high performance pleasure craft engines. The block is bored .060'' over, then honed on a computer controlled machine to within .002'' straightness and roundness, the cylinders are also sonic tested for thickness to ensure a solid foundation. The block also feautures a square and parallel decked surface and an align honed main bearing bore. All rotating assemblies are balanced within 2 grams on a computerized balancer. Blueprint Marine Engines are dyno tested and include dyno sheets. Best of all they feature a 1 year/unlimited hours warranty (pleasure craft only).

Recommended Fuel: 91 Octane

  • Marine 496ci Stroker Engine
  • Bored .060" over
  • 2-Piece Rear Main Seal
  • 4 Bolt main
  • Brass Freeze Plugs

    Rotating Assembly:
  • Cast Steel Crank
  • 4340 Forged Rods w/150,000 psi rod bolts
  • Forged Flat Top Pistons
  • Hastings moly rings
  • Compression: 9:1
  • Internally Balanced
  • Melling High Volume Oil Pump
  • Heavy duty double roller (high performance) timing set

    Cylinder Heads:
  • GM Cast Iron Oval Port w/screw-in studs and guide plates
  • 2.25" Intake/1.88" Exhaust Valves
  • 1.509 dia. Valve springs w/ damper
  • Hardened retainers & keepers
  • Hardened Pushrods
  • Long slot rockers with positive lock adjusting nuts

    Camshaft Specs:
  • Hydraulic Flat Tappet
  • Duration @ .050'' Lift: 226 Intake / 236 Exhaust
  • Lift: .544'' Intake / .547'' Exhaust
  • Lobe Separation: 112 Degree

    Included Accessories:
  • Marine Intake Manifold
  • Cad Plated Marine Oil pan
  • Non-Weighted 8" Diameter Balancer
  • Chrome Valve Covers
  • Chrome Timing Cover

    Dress Model Adds:
  • Marine 800 CFM Carburetor
  • Marine Mechanical Fuel Pump
  • Ignition System w/ plug wires and coil

    Note: Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet.

  • Part Number: MBP4960CT
  • Fuel Delivery Type: Carbureted
  • Spark Plug: NGK 2817 w/ .045" Gap
  • Spark Plug Gap: .045"
  • Harmonic Balancer: Non-Weighted 8" Diameter
  • Flexplate/Flywheel: Non-Weighted
  • Stall Converter: N/A
  • Intake Manifold: Marine Single plane, satin aluminum
  • Fuel Recommendation: 91 Octane
  • Timing (Initial/Total Advance): Initial timing - 10-16° and Total timing 32-34°
  • Firing Order: 1,8,4,3,6,5,7,2

  • 2 Products

    Base Engine

    Big Block Chevy Marine Base Engine
  • 496ci / 460HP / 515TQ
  • 2-Piece Rear Main Seal
  • $209
    Date Unknown

    Dress Engine

    Big Block Chevy Marine Dress Engine
  • 496ci / 460HP / 515TQ
  • 2-Piece Rear Main Seal
  • $209
    Order Today Ships 12/08/15

    2 Products