BluePrint Motorsports GM LS Compatible 427 c.i. Pro Series Engine - Naturally Aspirated - Long Block

**BluePrint Motorsports engines are built for maximum performance and are intended for extreme duty race applications. If this engine is used in a street application our normal 30 month, 50,000-mile warranty applies, if used in sanctioned racing no warranty, expressed, or implied.

Overview:

The LS-compatible platform is the king of street machines—and this BluePrint Engines 427 c.i. Pro Series monster proves why. Unleash raw, LS-powered fury with a street-scorching ??? horsepower and ??? ft-lbs of torque. This beast has BluePrint aluminum heads, a hydraulic roller cam, and hypereutectic pistons, and forged crankshaft, all locked into a high-strength LSX-style cast iron block. 

Description: 

• Horsepower & Torque: 638 Horsepower / 540 ft. lbs. Torque
• Compression Ratio: 11:1
• BluePrint Engines LS3 Aluminum Heads
• BluePrint Engines Hydraulic Roller Cam
  
• BluePrint Engines Forged Crankshaft
• Mahle 4032 Custom Forged Pistons

Block:

• BluePrint Engines High Strength Cast Iron (LSX Style) Block 
• Increased Deck Thickness and Strength Webbing
• Utilizes OEM LS3 Front and Rear Covers
• Improved Water Jacket Design
• Extended Cylinder Skirt
• 1-piece Rear Main Seal
  
• Priority Main Oiling
• 4.0695" Bore
  
• 6-bolt Main
  

Rotating Assembly:

• Forged Crankshaft
• 4.125" Stroke
• Forged 6.125" Connecting Rods
• Mahle Custom 4032 Forged Pistons
• Internally Balanced Front and Rear

Cylinder Heads:

• BluePrint Aluminum Cylinder Heads -PS8015
• 70cc Chamber
• 2.165" Intake / 1.600" Exhaust Valves
• 259cc Intake / 102cc Exhaust Runners

Cam Specs:

• Hydraulic Roller
• .646 intake / .646 Exhaust Lift
• 254 Intake / 266 Exhaust Duration
• @.050-113 Degree Lobe Separation

Also Includes:

• This engine does NOT come with a Fuel Injection ECU and Wiring Harness
• Harmonic Balancer
• Valve Covers
• LS Swap Oil Pan
• Timing Cover
  

Notes:

• BluePrint Motorsports engines are built for maximum performance and are intended for extreme duty applications. Because of the high-stress nature of their use, these engines are sold without any warranty, expressed, or implied.