Buy BluePrint Engines GM 350 C.I.D. 390 HP Long Block Online
Unleash legendary power with the BluePrint Engines GM 350 C.I.D. 390 HP Long Block. Engineered for high-performance reliability, this blueprint 350 crate engine delivers an impressive 390 HP and 410 ft-lbs of torque right out of the box. Order today from Electrical Marine Solutions and give your project the muscle it deserves!
If you are looking for the ultimate balance between streetability and raw performance, the Blueprint 350 390 hp is your premier choice. This isn’t just another crate engine 350; it is a precision-machined masterpiece designed to replace tired old motors with modern, reliable horsepower.
At Electrical Marine Solutions, we understand that enthusiasts demand more than just “stock” performance. This 350 390 configuration features a rugged 4-bolt main block and high-flow aluminum heads that significantly reduce weight while maximizing airflow. Whether you are refreshing a classic muscle car, a hardworking truck, or a custom marine application, this blueprint 350 crate engine provides the “seat-of-the-pants” acceleration you’ve been dreaming of.
Stop wasting time on expensive, unpredictable rebuilds. By choosing a dyno-tested BluePrint engine, you eliminate the guesswork and get straight to the driving. This long block serves as the perfect foundation for those who want to choose their own intake and induction system while benefiting from a professional-grade short block and valvetrain.
Overview
- Brand: BluePrint Engines
- Manufacturer’s Part Number: BP3505CT
- Part Type: Crate Engines
- Product Line: BluePrint Engines GM 350 C.I.D. 390 HP Long Block Crate Engines
- Summit Racing Part Number: MLL-BP3505CT
- UPC: 00887753841162
- Crate Engine Family: Chevy Small Block
- Actual Engine Displacement: 5.7L/350
- Crate Engine Cylinder Head Material: Aluminum
- Engine Block Material: Cast iron
- Advertised Compression Ratio: 9.2:1
- Assembled: Yes
- Engine Balance: Internal/External
- Cam Style: Hydraulic roller, OE roller
- Rear Main Seal Style: 1-piece
- Intake Manifold Included: No
- Cylinder Heads Included: Yes
- Carburetor Included: No
- Throttle Body Included: No
- Distributor Included: No
- Oil Pan Included: Yes
- Valve Covers Included: Yes
- Timing Cover 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
- Supercharger Included: No
- Remanufactured: No
- Quantity: Sold individually.
- Notes: This engine is not designed, nor intended to be used in any marine applications. Designed for pre-1976 street vehicles or any off-road vehicle. Engines installed in vehicles registered and normally operated outside of the United States carry no warranty.
BluePrint Engines GM 350 C.I.D. 390 HP Long Block Crate Engines
BluePrint Engines GM 350 C.I.D. 390 HP Long Block crate engines deliver 390 hp and 410 lbs.-ft. of torque. They feature aluminum heads, hydraulic roller cam, cast iron crankshaft, hypereutectic pistons, and a compression ratio of 9.2:1. Additional specifications include:
BLOCK:
- NEW BluePrint Cast Iron Block
- Manufactured and Machined in the USA
- 4-Bolt Main
- 4.000 in. Bore
- 1-Piece Rear Main Seal
- Mech fuel pump provision: Yes
- Passenger Side Dipstick
- Drilled and tapped for clutch linkage
ROTATING ASSEMBLY:
- Cast Iron Crankshaft
- 3.480 in. Stroke
- Forged 5.700 in. connecting rods
- Hypereutectic pistons
- Internal Front/ External Rear engine balance
CYLINDER HEADS:
- BluePrint Aluminum Cylinder Heads
- 64cc chamber
- 2.02 in. intake/1.60 in. exhaust valves
- 195cc intake/75cc exhaust runners
CAM SPECS:
- Cam Type: Roller
- .495 Intake .502 Exhaust
- 220 Intake / 224 Exhaust duration
- @ .050 – 114 degree lobe separation
IGNITION TIMING:
- 32 Degrees Total at 3,500 rpm
ALSO INCLUDES:
- Valve covers
- Oil pan
- Timing cover
- Dyno test results shipped with engine
- 30 month / 50,000 mile warranty
Product Specifications
- Displacement: 350 C.I.D.
- Horsepower: 390 HP
- Torque: 410 ft-lbs
- Compression Ratio: 9.5:1
- Block: 4-Bolt Main, 1-Piece Rear Main Seal
- Crankshaft: Cast Steel
- Heads: 64cc Aluminum
- Camshaft: Hydraulic Roller (.495 Intake / .503 Exhaust Lift)
- Warranty: 30 Months / 50,000 Miles
Benefits / Why Choose This Product
The BluePrint Engines GM 350 C.I.D. 390 HP Long Block offers a massive performance leap over the standard 6.0 LS engine or stock small blocks. While many enthusiasts consider a 6.2 LS3 crate engine for modern swaps, the 350 Long Block remains the king of “plug-and-play” simplicity for classic chassis. You get modern power without the complex wiring harness and fuel system requirements of a 6.2 LS engine. It’s the cost-effective way to get high-end performance, backed by an industry-leading warranty that gives you total peace of mind on every journey.
FAQs Section
Does this engine come with a dyno sheet?
Yes! Every BluePrint 350 engine is dyno-tested, and the individual results are included with your purchase so you can see the exact horsepower produced.
What fuel octane is required?
This engine is designed to run efficiently on 91-octane premium pump gas.
Can I use this in a marine application?
Yes, but ensure you use marine-specific accessories (alternator, starter, etc.) to comply with safety regulations.
What is the shipping lead time?
We stock these engines regularly; however, due to high demand, please allow 5-10 business days for freight shipping.
Conversion Elements
- High Demand: Only a few units remaining for this quarter’s shipment!
- Quality Guaranteed: Every engine undergoes a rigorous multi-point inspection.
- Secure Checkout: Your data is protected by industry-leading SSL encryption.
- Free Freight: On select orders within the continental region!
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