BluePrint Engines GM 350 Crate Engine Carbureted Base Dressed 390 HP

This powerhouse engine (BP3505CTC) delivers 390 horsepower and 410 ft-lbs of torque for elevated performance! Its lightweight aluminum cylinder heads enhance airflow to the hypereutectic pistons for longevity under high stress. The hydraulic roller cam provides optimal performance across a broad RPM range for effortless engine response to acceleration. Its versatile design includes all necessary provisions to support smooth operation.

Features and Benefits:
- High-strength cast iron base-dressed crate engine block
- 390 Horsepower / 410 FT. LBS. Torque
- Compression Ratio: 9.2:1
- Features 4-bolt main, 4.000" bore, and 1-piece rear main seal
- Includes mech fuel pump provision
- Drilled and tapped for use with clutch linkage
- Passenger side dipstick placement
- Cast crankshaft with hypereutectic pistons and 3.480" rotation stroke
- Forged 5.700" crankshaft connecting rods
- Crankshaft is internally balanced at the front and externally balanced at the rear
- Aluminum cylinder heads feature 64cc chamber
- Hydraulic roller cam design
- 32-degree total ignition timing at 3500 RPM
- Holley Brawler 670cfm vacuum secondary carburetor w/ electric choke
- Backed by BluePrint Engines' 30-month/50,000-mile warranty

Cylinder Head Specifications:
- 64cc Chambers
- 2.02" Intake / 1.60" Exhaust Valves
- 195cc Intake / 75cc Exhaust Runners

Camshaft Specifications:
- 0.495” Intake / 0.502” Exhaust Lift
- 220 Intake / 224 Exhaust Duration
- @ 0.050-114° Lobe Separation

Base Dressed Includes:
- Valve Covers
- Rear Sump Oil Pan
- Timing Cover
- Aluminum Intake
- HEI Distributor

Additional Notes:
- The performance aluminum cylinder heads on this engine feature a 0.500" raised port vs. OEM.