- Out-of-Stock

Description
MARINE ENGINES 355 CUBIC INCH
BluePrint Engines 355CI Marine Crate Engine
- Small Block GM Style
- Longblock
- Iron Heads
- Flat Tappet Cam
This engine will be dyno tested before it ships to you at no additional charge.
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
4.000in. Bored .040in. 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
3.480in. Stroke
OEM type 5.700in. connecting rods
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
Valve covers
Oil pan
Brass freeze plugs
NOTES:
Replaces Standard Rotation engines only. Not available as reverse rotation.
BluePrint Engines recommends the use of a flame arrestor in marine applications.
Package dimensions
Width: 0.00 inch
Height: 0.00 inch
Depth: 0.00 inch
Weight: 0.00 lb