This BluePrint Engines 350 cubic inch GM Small Block crate engine is a base dressed, carbureted build rated at 390 horsepower and 410 lb-ft of torque. It arrives with the carburetor, intake, distributor, and other top-end components already installed, built on a cast iron block with forged rods, a hydraulic roller cam, and BluePrint aluminum heads.
Specifications:
- Displacement: 350 c.i. (5.7L)
- Horsepower: 390 HP
- Torque: 410 lb-ft
- Bore: 4.000 in
- Stroke: 3.480 in
- Compression ratio: 9.2:1
- Block: High-strength cast iron, 4-bolt main, 1-piece rear main seal, mechanical fuel pump provision, passenger-side dipstick, drilled and tapped for clutch linkage
- Crankshaft: Cast, 3.480 in stroke
- Connecting rods: Forged, 5.700 in
- Pistons: Hypereutectic, dish, 12cc
- Cylinder heads: BluePrint aluminum H8002K, 64cc chamber, 2.02 in intake / 1.60 in exhaust valves, 195cc intake / 75cc exhaust runners, .500 in raised port vs OEM
- Camshaft: Hydraulic roller, .495 in intake / .502 in exhaust lift, 220/224 duration at .050, 114 deg LSA
- Induction: Carbureted: Holley 670 CFM Brawler (BPP67256670) on a dual-plane satin aluminum intake
- Balance: Internally balanced front, externally balanced rear
- Ignition timing: 32 degrees total at 3500 RPM
- Fuel: 87+ octane
- Part number: BP3505CTC
What's Included: This is a base dressed, carbureted engine. It comes with the Holley 670 CFM Brawler carburetor (BPP67256670), a dual plane satin aluminum intake (BPP350VINT), BluePrint logo'd valve covers (BPP9518), a fuel pump block off plate (BPP42463), a BluePrint dipstick (BPP9420), an HEI distributor (BPP350RBK), a rear sump oil pan, a timing cover, and an oil pump. The itemized list does not include a flywheel or flex plate, or a starter. Items not itemized above, such as a water pump, spark plugs and wires, or a thermostat and housing, are not confirmed as included in this configuration.
Engine Platform: Built to the GM small block (SBC) platform. It is specified for 87+ octane fuel, and the aluminum heads use a .500 in raised port versus an OEM casting.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
FAQ
What comes on the BP3505CTC base dressed engine?
It includes the Holley 670 CFM Brawler carburetor (BPP67256670), a dual plane satin aluminum intake (BPP350VINT), BluePrint logo'd valve covers (BPP9518), a fuel pump block off plate (BPP42463), a BluePrint dipstick (BPP9420), an HEI distributor (BPP350RBK), a rear sump oil pan, a timing cover, and an oil pump. The itemized list does not include a flywheel or flex plate, or a starter.
How much power does it make?
It is rated at 390 horsepower and 410 lb-ft of torque by BluePrint Engines. BluePrint describes the rating as dyno-proven.
What carburetor is on it?
It comes with the Holley 670 CFM Brawler carburetor (BPP67256670) on the dual plane satin aluminum intake, with a distributor for ignition.
What octane does it require?
It is a 9.2:1 engine specified for regular 87 octane pump gas or higher.
Is this a complete engine?
It is a base dressed long block with the components listed above installed. It does not include a flywheel or flex plate, or a starter.

