Ships FREE!

BluePrint MBP3550CT GM 355 Base Marine Engine, Cast Iron Vortec Heads

Ships FREE!

#227MBP3550CT

BluePrint MBP3550CT GM 355 Base Marine Engine, Cast Iron Vortec Heads

Name: BluePrint MBP3550CT GM 355 Base Marine Engine, Cast Iron Vortec Heads
Brand: BluePrint Engines
SKU: 227MBP3550CT
Price: 6799 USD
Availability: InStock

Write a Review

1 Question

Level Of Dress:

#1 Long Block

#2 Base Dressed - Carbureted

$6,799.00

/each

Factory Shipped

Quantity

Need Help? Call to Order

Add to a list

Select an engine to verify Fitment

Select Engine

Product Summary

Universal Fit, Long Block Crate Engine Type

See more details

Key Specs

Crate Engine Type	Long Block
Compression Ratio	9.5:1
Engine Displacement	355 cu. in.
Camshaft Type	Hydraulic Flat Tappet
Cylinder Head Material	Aluminum

See more specs

Need To Know

Made to Order

This custom item will ship when completed

Truck Shipment

Truck shipments must be pre-paid with a credit card, certified check or money order

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

BluePrint Engines MBP3550CT Details

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 Base 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 #: MBP3550CT

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
Keith Black 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: Flat tappet
.480 Intake .489 Exhaust
226 Intake / 236 Exhaust duration
@ .050 - 112 degree lobe separation

Ignition Timing

34 degrees at 3500 rpm

Also Includes

New cast iron marine intake
Polished aluminum valve covers
Rubber coated steel 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.

Warranty Information

Warranty Information (PDF)

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

BluePrint Engines MBP3550CT Specifications

KEY SPECS
MFG. Part #	MBP3550CT
Brand	BluePrint Engines
Crate Engine Type	Long Block
Compression Ratio	9.5:1
Engine Displacement	355 cu. in.
Camshaft Type	Hydraulic Flat Tappet
Cylinder Head Material	Aluminum
Piston Material	Hypereutectic Aluminum
Crankshaft Material	Cast Steel
Carburetor Included	No
Intake Manifold Included	No
Distributor Included	No
Valve Covers Included	Yes
Engine Balance	External
Cylinder Heads Included	Yes
Rear Main Seal Style	1-piece
Throttle Body Included	No
Timing Cover Included	Yes
Oil Pan Included	Yes
Water Pump Included	No
Harmonic Balancer Included	No
Flexplate Included	No
Flywheel Included	No
Air Cleaner Included	No
Spark Plugs Included	No
Spark Plug Wires Included	No
Computer Included	No
Wiring Harness Included	No

GENERAL
Torque	390 ft./lbs.
Horsepower	365 horsepower
Camshaft Duration (.050 in)	226° intake / 236° exhaust
Camshaft Lift (in)	.480 intake / .489 exhaust
Bore x Stroke (in)	4.000" bored .040 over x 3.480"
Warranty	12 month parts and labor, pleasurecraft only
Assembled	Yes
Camshaft Included	Yes
Cylinder Heads	Cast iron Vortec
Block	4 bolt main
Notes	Zinc Additive Required For Flat Tappet Application, Recommended Oil For Your BluePrint Crate Engine: 10W30, Non-Synthetic. Not For EGR

Ratings & Reviews

Be the first to write a review.

Questions & Answers

1 Question • 1 Answer

Sort Questions

I have a 1984 350 mercruiser engine that has a cracked block. what block design is the 355 marine engine you are selling? Will it fit pre 86? The flywheel is smaller on per 86 merc engines. Thanks very much.

by Shane

• 7 years ago

1 answer

View Answer

1 of 1 questions shown

Fitment

1994 Buick Roadmaster

Gen 1 L05 Small Block Chevy

1995-1996 Buick Roadmaster

Gen 2 LT1 Small Block Chevy

1999-2000 Cadillac Escalade

Vortec L31 Small Block Chevy

1990-1992 Cadillac Fleetwood

Gen 1 L05 Small Block Chevy

1993-1996 Cadillac Fleetwood

Gen 2 LT1 Small Block Chevy

1987-1994 Chevy Blazer

Gen 1 L05 Small Block Chevy

1986 Chevy C10

Gen 1 L05 Small Block Chevy

1986 Chevy C10 Suburban

Gen 1 L05 Small Block Chevy

1988 Chevy C15

Gen 1 L05 Small Block Chevy

1988-1995 Chevy C1500

Gen 1 L05 Small Block Chevy

1996-1999 Chevy C1500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1992-1995 Chevy C1500 Suburban

Gen 1 L05 Small Block Chevy

1996-1999 Chevy C1500 Suburban

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1986-1987 Chevy C20

Gen 1 L05 Small Block Chevy

1986 Chevy C20 Suburban

Gen 1 L05 Small Block Chevy

1988-1995 Chevy C2500

Gen 1 L05 Small Block Chevy

1996-1999 Chevy C2500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1992-1995 Chevy C2500 Suburban

Gen 1 L05 Small Block Chevy

1996-1999 Chevy C2500 Suburban

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1986 Chevy C30

Gen 1 L05 Small Block Chevy

1988-1995 Chevy C35

Gen 1 L05 Small Block Chevy

1996-1999 Chevy C35

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1988-1995 Chevy C3500

Gen 1 L05 Small Block Chevy

1996-1999 Chevy C3500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1987-1991 Chevy Camaro

Gen 1 L98 Small Block Chevy

1992 Chevy Camaro

Gen 1 L98 Small Block Chevy
Gen 2 LT1 Small Block Chevy

1993-1995 Chevy Camaro

Gen 2 LT1 Small Block Chevy

1996-1999 Chevy Camaro

Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy

1986-1993 Chevy Caprice

Gen 1 L05 Small Block Chevy

1994-1995 Chevy Caprice

Gen 2 LT1 Small Block Chevy

1996 Chevy Caprice

Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy

1986-1991 Chevy Corvette

Gen 1 L98 Small Block Chevy

1992-1995 Chevy Corvette

Gen 2 LT1 Small Block Chevy

1996 Chevy Corvette

Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy

1996-1999 Chevy Express 1500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1996 Chevy Express 2500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1997 Chevy Express 2500

Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy

1998-1999 Chevy Express 2500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1996-1999 Chevy Express 3500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1986-1993 Chevy G10

Gen 1 L05 Small Block Chevy

1986-1995 Chevy G20

Gen 1 L05 Small Block Chevy

1986-1995 Chevy G30

Gen 1 L05 Small Block Chevy

1996 Chevy G30

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1994-1995 Chevy Impala

Gen 2 LT1 Small Block Chevy

1996 Chevy Impala

Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy

1986 Chevy K10

Gen 1 L05 Small Block Chevy

1986 Chevy K10 Suburban

Gen 1 L05 Small Block Chevy

1988-1995 Chevy K1500

Gen 1 L05 Small Block Chevy

1996-1999 Chevy K1500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1992-1995 Chevy K1500 Suburban

Gen 1 L05 Small Block Chevy

1996-1999 Chevy K1500 Suburban

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1986 Chevy K20

Gen 1 L05 Small Block Chevy

1986 Chevy K20 Suburban

Gen 1 L05 Small Block Chevy

1988-1995 Chevy K2500

Gen 1 L05 Small Block Chevy

1996-1999 Chevy K2500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1992-1995 Chevy K2500 Suburban

Gen 1 L05 Small Block Chevy

1996-1999 Chevy K2500 Suburban

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1986 Chevy K30

Gen 1 L05 Small Block Chevy

1988-1995 Chevy K3500

Gen 1 L05 Small Block Chevy

1996-1999 Chevy K3500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1986 Chevy K5 Blazer

Gen 1 L05 Small Block Chevy

1986-1995 Chevy P30

Gen 1 L05 Small Block Chevy

1996-1999 Chevy P30

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1987 Chevy R10

Gen 1 L05 Small Block Chevy

1987-1988 Chevy R10 Suburban

Gen 1 L05 Small Block Chevy

1989-1991 Chevy R1500 Suburban

Gen 1 L05 Small Block Chevy

1987-1988 Chevy R20

Gen 1 L05 Small Block Chevy

1987-1988 Chevy R20 Suburban

Gen 1 L05 Small Block Chevy

1995 Chevy R25

Gen 1 L05 Small Block Chevy

1996-1999 Chevy R25

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1989 Chevy R2500

Gen 1 L05 Small Block Chevy

1989-1991 Chevy R2500 Suburban

Gen 1 L05 Small Block Chevy

1987-1988 Chevy R30

Gen 1 L05 Small Block Chevy

1989-1991 Chevy R3500

Gen 1 L05 Small Block Chevy

1995 Chevy Silverado

Gen 1 L05 Small Block Chevy

1996-1999 Chevy Silverado

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1987-1994 Chevy Suburban

Gen 1 L05 Small Block Chevy

1995 Chevy Suburban 1500

Gen 1 L05 Small Block Chevy

1996-1999 Chevy Suburban 1500

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1995 Chevy Tahoe

Gen 1 L05 Small Block Chevy

1996-1999 Chevy Tahoe

Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy

1987 Chevy V10

Gen 1 L05 Small Block Chevy

1987-1988 Chevy V10 Suburban

Gen 1 L05 Small Block Chevy

1989-1991 Chevy V1500 Suburban

Gen 1 L05 Small Block Chevy

1987 Chevy V20

Gen 1 L05 Small Block Chevy

1987-1988 Chevy V20 Suburban

Gen 1 L05 Small Block Chevy

1989-1991 Chevy V2500 Suburban

Gen 1 L05 Small Block Chevy

1987-1988 Chevy V30

Gen 1 L05 Small Block Chevy

1989-1991 Chevy V3500

Gen 1 L05 Small Block Chevy

1998-1999 GMC C1500

Vortec L31 Small Block Chevy

1992-1999 GMC C1500 Suburban

Vortec L31 Small Block Chevy

1987-1995 GMC G1500

Gen 1 L05 Small Block Chevy

1987-1995 GMC G2500

Gen 1 L05 Small Block Chevy

1987-1994 GMC G3500

Gen 1 L05 Small Block Chevy

1995-1996 GMC G3500

Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy

1986 GMC Jimmy

Gen 1 L05 Small Block Chevy

1987 GMC Jimmy

Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy

1988-1990 GMC Jimmy

Gen 1 L05 Small Block Chevy

1998-1999 GMC K1500

Vortec L31 Small Block Chevy

1981-1986 GMC K1500 Suburban

Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy

1992-1999 GMC K1500 Suburban

Vortec L31 Small Block Chevy

1986 GMC K2500

Gen 1 L05 Small Block Chevy

1996-2000 GMC K2500

Vortec L31 Small Block Chevy

1992-1993 GMC K2500 Suburban

Gen 1 L05 Small Block Chevy

1987 GMC R1500 Suburban

Vortec L31 Small Block Chevy

1988-1991 GMC R1500 Suburban

Gen 1 L98 Small Block Chevy

1996-2000 GMC Savana 1500

Vortec L31 Small Block Chevy

1987-1991 GMC V1500 Suburban

Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy

1987 GMC V2500

Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy

1987-1991 GMC V2500 Suburban

Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy

1992-2011 GMC Yukon

Vortec L31 Small Block Chevy