Description
BluePrint MBP3550CTC GM 355 Dressed Marine Engine, Cast Iron Vortec Heads
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.
| KEY SPECS | |
|---|---|
| MFG. Part # | MBP3550CTC |
| Brand | BluePrint Engines |
| Crate Engine Type | Long Block |
| Engine Displacement | 355 cu. in. |
| Horsepower | 365 horsepower |
| Compression Ratio | 9.5:1 |
| Torque | 390 ft./lbs. |
| Camshaft Type | Hydraulic Flat Tappet |
| Cylinder Head Material | Cast Iron |
| Piston Material | Hypereutectic Aluminum |
| Crankshaft Material | Cast Steel |
| Camshaft Duration (.050 in) | 218° intake / 224° exhaust |
| Camshaft Lift (in) | .480 intake / .489 exhaust |
| Bore x Stroke (in) | 4.000″ bored .040 over x 3.480″ |
| Intake Manifold Included | Yes |
| Distributor Included | Yes |
| Valve Covers Included | Yes |
| Cylinder Heads Included | Yes |
| Rear Main Seal Style | 1-piece |
| Oil Pan Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | Yes |
| Harmonic Balancer Included | Yes |
| Flexplate Included | No |
| Flywheel Included | No |
| Air Cleaner Included | Yes |
| Spark Plug Wires Included | Yes |
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