BluePrint Engines 341 HP Long Block GM 350 Small-Block Crate Engine
Highlights
- Stellar Cruiser/Daily Driver
- Makes Up to 18” of Vacuum
- In-House Cylinder Heads
- Hypereutectic Pistons
BluePrint Engines 341-Horsepower Long Block GM 350 C.I. Small-Block Crate Engine.
Cruise the streets in your restomod carefree using this long block GM 350 small-block crate engine (BP350CT). A great fit for any muscle car, BluePrint Engines designed it smooth and reliable everyday driving. You can pair it with stock torque converters and gearings. By producing up to 18” of vacuum, it also provides smooth power brake operation. Plus, it runs clean on 87 octane fuel—no premium required!
Features and Benefits:
- High-strength, cast iron engine block with 4.000” bore
- Operates at 341 horsepower and 371 ft.-lbs. torque
- 9.2:1 compression ratio for balance of power and reliability
- 4-bolt main offers stronger bottom end for high-HP applications
- 1-piece rear main seal ensures stronger, leak-free security
- Block is drilled and tapped for clutch linkage
- Built-in BluePrint Engines Muscle Series cylinder heads made of aluminum
- Cast iron crankshaft with 3.480" stroke and forged 5.700" connecting rods
- Hypereutectic pistons for better strength and heat resistance
- Rotating assembly: internally balanced front, externally balanced rear
- Hydraulic roller cam. for lower maintenance and better strength than flat tappet cam.
- Ignition timing: 32 degrees total at 3500 RPM
- Includes mechanical fuel pump provision and passenger-side dipstick
- Backed by BluePrint Engines' 30 month/50,000 mile-warranty
Also Includes:
- Valve covers
- Rear sump oil pan
- Timing cover
Cylinder Head Specifications:
- 64cc chambers
- 2.02" intake / 1.60" exhaust valves
- 195cc intake / 75cc exhaust runners
Camshaft Specifications:
- .477” intake / .471” exhaust lift
- 202 degrees intake / 212 degrees exhaust duration
- @ .050-115 degrees lobe separation
Please Note: The cylinder heads feature a .500" raised port vs OEM. Please verify clearance prior to installation.
California Residents: Proposition 65 Warning
Related Categories: Engine, Restomod, Crate Engines
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles
Vehicle Fitment
This product will fit the following Camaro years:
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
This product will fit the following Chevelle years:
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
This product will fit the following El Camino years:
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,













