This 427 c.i. Ford Small Block Compatible Pro Series long block is rated at 541 horsepower and 519 lb-ft of torque. It is built on a BluePrint Engine Cast Iron Block (351 W, 4 Bolt Main, 4.125" Bore) and topped with Aluminum Cylinder Heads. It is dyno tested.

BluePrint Engines PSF4271CT Engine Long Block Features:

• 541 hp and 519 lb-ft of torque
• 10.0:1 compression ratio
• Camshaft: Hydraulic Roller - .608 Intake / .608 Exhaust Lift - 248 Intake / 258 Exhaust Duration - @.050-114 LSA
• Rotating assembly: Forged Crank, 4.000 in. Stroke and 6.2 in. Rods, forged pistons
• Cylinder heads: Aluminum Cylinder Heads
• Includes oil pan (front sump)
• Dyno tested

BluePrint Engines PSF4271CT Installation Notes:

• Recommended fuel: 91+ Octane
• Timing: Initial Timing 10-16 - Total Timing 32-34
• Firing order: 1,3,7,2,6,5,4,8
• Recommended torque converter stall speed: 2200+ RPM
• Recommended flexplate/flywheel: BPPF157T28 - BPP529625
• Recommended harmonic balancer: BPP28
• Engine balance: Internally Balanced
• Recommended spark plug: BPP7938 - NGK 7938 BKR5E, gapped at .035 in.
• Air cleaner is not included