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BluePrint MBP3550CTC GM 355 Dressed Marine Engine, Cast Iron Vortec Heads
BluePrint MBP3550CTC GM 355 Dressed Marine Engine, Cast Iron Vortec Heads

BluePrint MBP3550CTC GM 355 Dressed Marine Engine, Cast Iron Vortec Heads

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BluePrint MBP3550CTC GM 355 Dressed Marine Engine, Cast Iron Vortec Heads
BluePrint MBP3550CTC GM 355 Dressed Marine Engine, Cast Iron Vortec Heads
BluePrint MBP3550CTC GM 355 Dressed Marine Engine, Cast Iron Vortec Heads
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BluePrint MBP3550CTC GM 355 Dressed Marine Engine, Cast Iron Vortec Heads
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Part # 227MBP3550CTC
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True Blue Power! BluePrints pro engine builders are enthusiasts just like you and it shows in the quality and performance of every engine they build. Each BluePrint crate engine is carefully dyno tested and ships with printed, proven results. If you’re looking serious horsepower at an affordable price, BluePrint Engines is the choice for you!

GM 355 Dressed Marine Engine - Cast Iron Vortec Heads - Flat Tappet Cam

Overview

  • HP & Torque: 365 HP / 390 FT LBS
  • Compression Ratio: 9.5:1
  • Cast Iron Heads
  • Hypereutectic Pistons
  • Flat Tappet Cam
  • Cast Steel Crank
  • Part #: MBP3550CTC

Block

  • Seasoned 4 bolt main block
  • One piece rear main seal
  • Max bore .040
  • Align honed main bearing bore
  • Sonic tested to assure wall thickness

Rotating Assembly

  • New cast steel crankshaft-externally balanced
  • Chevy heavy beam rods resized and clearance improved
  • 150,000 PSI rod bolts
  • Hypereutectic pistons
  • Hastings moly rings
  • New Hydraulic flat tappet camshaft
  • Heavy duty double roller timing

Cylinder Heads

  • GM Vortec cast iron cylinder heads
  • 1.25 dia. valve springs, hardened retainers and keepers
  • 2.02 swirl polished intake valves
  • 1.60 swirl polished exhaust valves
  • Elgin hardened push rods
  • Long slot rockers with positive lock adjusting nuts

Cam Specs

  • Cam Type: Roller
  • .480 Intake .489 Exhaust
  • 218 Intake / 224 Exhaust duration
  • @ .050 - 112 degree lobe separation

Also Includes

  • New cast iron marine intake
  • Fuel pump
  • Fuel line and filter
  • Cast iron circulating pump
  • 600 electric choke carburetor
  • Harmonic balancer
  • Polished aluminum valve covers
  • Rubber coated steel oil pan
  • Distributor
  • Spark plugs
  • BluePrint plug wires
  • Brass freeze plugs
  • Dyno test results shipped with engine

Warranty

  • 12 month unlimited hour on pleasurecraft only. No warranty on commercial use.

Warranties

Warranty Information (PDF)

Important Messages:

  • This product is discontinued.
  • This item ships directly from the manufacturer. It may take an additional business days for BluePrint Engines to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
  • This item 227MBP3550CTC is made to order. It will be shipped from our warehouse when it is produced.
Some parts are not legal for use in California or other states with similar laws/regulations

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