Block:

• BluePrint Engines New Block Casting
• Standard Deck Height
• Cast Iron
• 4-Bolt Main
• 1-Piece Rear Main Seal
• 4.600 in. Bore

Rotating Assembly:

• Forged Crankshaft 4.500 in. Stroke
• Forged H-Beam Connecting Rods 6.480 in. Length
• Forged Pistons 4.600 in. Bore
• Compression: 10.5:1
• Double roller timing set
• Internal Balance

Cylinder Heads:

• Blueprint Aluminum with 119 cc Chambers - 138-PS8012
• 358 CC Intake Runner
• 125 cc Exhaust Runner
• 2.300 in. Intake Valve 
• 1.880 in. Exhaust Valve
• Exhaust port raised 0.300 in. over OEM casting 

Camshaft Specs:

• Hydraulic Roller
• Duration @ .050 in. Lift: 258-degrees Intake / 266-degrees Exhaust
• Lift: .647 in. Intake / .647 in. Exhaust
• Lobe Separation: 112-degrees

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