Block:

• New BluePrint Cast Iron Block
• Manufactured & Machined in the USA
• 4-bolt main
• 1-piece rear main seal
• Standard deck height
• Mechanical fuel pump provision

Rotating Assembly:

• Forged 4.250 in. stroke crankshaft
• Forged H-beam 6.385 in.
• Forged 4.500 in. bore pistons; 10.0 to 1 Compression
• Internal balance

Cylinder Heads:

• Blueprint Aluminum Cylinder Heads (p/n 138-PS8013)
• 316 cc Intake Runner Volume
• 124 cc Exhaust Runner Volume
• 119 cc Combustion Chamber Size
• 2.300 in.Swirl Polished Intake Valves
• 1.880 in. Swirl Polished Exhaust Valves
• .750 in. reach gasket spark plug

Camshaft Specs:

• Hydraulic Roller
• Duration @ .050 in. Lift: 248 Intake / 254 Exhaust
• 112 degree LSA
• Lift: .647 in. Intake / .647 in. Exhaust 

Dress Model Adds:

• Holley 78 cfm 
• MSD Pro Billet distributor
• Edelbrock single plane aluminum intake manifold
• Valve covers
• Oil Pan
• Timing Cover
• MSD plug wires
• Spark plugs
• Harmonic balancer

Notes: Not for EGR boats being used in salt water, it is recommended for use in closed cooling systems as the aluminum cylinder heads and intake manifold do not have brass lined water passages.

Replaces standard rotation engines only, not available for reverse rotation.

Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet. 

• Fuel Delivery Type: Carbureted, 850cfm
• Spark Plug: Champion 792
• Spark Plug Gap: 0.045 in.
• Harmonic Balancer: Non-weighted
• Flexplate/Flywheel: Non-weighted
• Fuel Recommendation: 91 Octane
• Timing: 10-16 degrees initial, 34 degrees total at 3500 RPM
• Firing Order: 1-8-4-3-6-5-7-2

Engine Break-In Procedure

Use or break-in oil or conventional (non-synthetic) multi-viscosity oil with zinc additive for the first 500 miles of operation. Avoid hard acceleration for sustained periods. Periodically change the engine speed while driving to help seat the rings. While the engine is running, be sure to check oil pressure and coolant temperature, and check for fluid leaks, such as oil, transmission fluid, fuel, and coolant/antifreeze. Also listen for any unusual sounds. Should you hear an unusual sound, shut the engine off, check for the source, and correct it.

Engines with flat tappet cams only - Start the engine and bring it to 2,000 RPM. Get the engine running smoothly. Then vary the engine speed from 1,800-2,200 RPM in a slow acceleration/deceleration cycle for 30 minutes. This is necessary to provide adequate oil splash and lifter rotation to properly mate each lifter to its lobe. 

At 500 Miles change the engine oil and filter using conventional (non-synthetic) oil. After 6,000 miles, synthetic oils can be used in your engine.  For flat tappet cam engines, continued use of oil with zinc or a zinc additive for the life of your engine is recommended. 

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART