Overview:

The Blueprint Engines 350ci crate engine combines classic muscle with modern performance, dyno-tested at390 Horsepower / 410 FT. LBS. Torqueand features a genuine Holley Sniper2 EFI system. Housed in a one-piece rear main seal BluePrint Engines High Strength Cast Iron 4-bolt main Block with a 4.000 bore and 3.480″stroke, it features high-quality internals like a .495 Intake / .502 Exhaust Lift and 220 Intake / 224 Exhaust Duration @ .050-114 LSA, hypereutectic pistons, cast crank, forged 5.700″ Connecting Rods, and Blueprints aluminum heads sporting 64cc chambers and raised ports.

The Sniper2 EFI breathes through the satin dual-plane intake, offering crisp throttle response, selftuning via next generation ECU, and compatibility with modern fuels. It eliminates cold-start woes and rough idling, transforming the driving experience into one of modern efficiency on a vintage platform. Finished with a complete dressup kittiming cover, valve covers, HEI distributor, and more, its a turnkey powerhouse that blends effortless drivability with classic muscle aesthetics.

Description:

• Horsepower & Torque: 390 Horsepower / 410 FT. LBS. Torque
• Compression Ratio: 9.2:1
• Aluminum Heads
• Hydraulic Roller Cam
• Cast Crankshaft
• Hypereutectic Pistons

Block:

• BluePrint Engines High Strength Cast Iron Block
• Manufactured and Machined in the USA!
• 4-Bolt Main
• 4.000″ Bore
• 1-Piece Rear Main Seal
• Mech Fuel Pump Provision: Yes
• Passenger Side Dipstick
• Drilled and Tapped for Clutch Linkage

Rotating Assembly:

• Cast Crankshaft
• 3.480″ Stroke
• Forged 5.700″ Connecting Rods
• Hypereutectic Pistons
• Internally Balanced Front – Externally Balanced Rear

Cylinder Heads:

• BluePrint Aluminum Cylinder Heads –
• 64cc Chamber
• 2.02″ Intake / 1.60″ Exhaust Valves
• 195cc Intake / 75cc Exhaust Runners

Cam Specs:

• Hydraulic Roller
• .495 Intake / .502 Exhaust Lift
• 220 Intake / 224 Exhaust Duration
• @ .050-114 Degree Lobe Separation

Ignition Timing:

• 32 Degrees Total at 3500 RPM

Also Includes:

• Valve Covers
• Rear Sump Oil Pan
• Timing Cover
• Aluminum Intake
• HEI Distributor
• Holley Sniper II EFI System

Recommended Break in Oil:

Recommended Service Oil:

Recommended Oil Filter:

Notes:

• The performance aluminum cylinder heads on this engine feature a .500 raised port vs OEM.