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PSF4271CT / PSF4271RCT Series

Horsepower & Torque: 541 Horsepower / 519 FT. LBS. Torque Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads Compression Ratio: 10:1 Camshaft: Hydraulic Roller Cam - .608 Intake / .608 Exhaust and 248 Intake / 258 Exhaust Duration @.050–114 LSA Pistons: Forged Crankshaft: Forged Crank - 4.000" Stroke and Forged 6.250" Rods Fuel Recommendation: 91+ Octane

Description: 

  • Horsepower & Torque: 541 Horsepower / 519 FT LBS
  • Compression Ratio: 10.0:1
  • Aluminum Heads
  • Hydraulic Roller Cam
  • Forged Crank
  • Forged Pistons

Block:

  • NEW BluePrint Engines' High Strength Cast Iron Block
  • 4-Bolt Main
  • 1-Piece Rear Main Seal

Rotating Assembly:

  • New Forged Crankshaft
  • 4.000" Stroke
  • Forged 6.2" Connecting Rods
  • Forged Pistons
  • Internal Engine Balance

Cylinder Heads:

  • Aluminum Cylinder Heads
  • 2.08" Intake/1.60" Exhaust Valves
  • 205cc Intake/70cc Exhaust Runners

Cam Specs:

  • Cam Type: Roller
  • .608 Intake .608 Exhaust
  • 248 Intake / 258 Exhaust Duration
  • @ .050 - 114-degree Lobe Separation

Also Includes:

  • Valve Covers
  • Oil Pan
  • Harmonic Balancer

 

Engine Accessory Specifications

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 ** Not Included

Spark Plug: BPP7938 NGK 7938 BKR5E

Spark Plug Gap: .035"

Harmonic Balancer: Non-Weighted

Flexplate/Flywheel: Non-Weighted

Stall Converter: 2200+

Intake Manifold: Single Plane, Satin Aluminum

Fuel Recommendation: 91+ Octane Approved

Timing (Initial/Total Advance): Initial Timing 10-16° and Total Timing 32-34°

Firing Order: 1,3,7,2,6,5,4,8

Recommended Break in Oil: BPP710 (Click Here)

Recommended Service Oil: BPP10W30 (Click Here)

Recommended Oil Filter: BPP21085 or BPP51515 (Click Here)

Total Oil Capacity with Production Oil Pan, and Correct Filter:

  • Rear sump pan: 7-quart 
  • Front sump pan: 9-quart