MBP3550CT BluePrint Engines 355CI 365HP Marine Crate Engine, Small Block GM Style, Longblock, Iron Heads, Flat Tappet Cam

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

BLOCK:
Hand picked seasoned block
Square and parallel decked
Align honed main bearing bore
Cylinders honed on computer controlled machine to within .0002 straightness and roundness
Cylinders are sonic tested for thickness
4-Bolt Main
4.000" Bored .040" over
1-Piece Rear Main Seal
Mech fuel pump provision: Yes
Passenger Side Dipstick Drilled and tapped for clutch linkage

ROTATING ASSEMBLY:
Cast steel crankshaft
3.480" Stroke
OEM type 5.700" connecting rods w/ 150,000 psi bolts
Hypereutectic pistons
Internal Front/ External Rear

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: Flat tappet
.480 Intake .489 Exhaust lift
226 Intake / 236 Exhaust duration
@ .050 - 112 ? lobe separation angle

IGNITION TIMING:
34 degrees total at 3500 RPM

ALSO INCLUDES:
New cast iron marine intake
Polished aluminum valve covers
Oil pan
Brass freeze plugs
All engines are dyno tested on a state of the art DTS dyno and ship with a complete spec sheet

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

NOTES:
Replaces Standard Rotation engines only. Not available as reverse rotation.
WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov