This BluePrint Engines 427 cubic inch Ford small block (Windsor-based stroker) Pro Series crate engine is a base dressed, fuel-injected build rated at 541 horsepower and 519 lb-ft of torque. A Holley Sniper 2 EFI system on a Victor single plane intake comes installed on a cast iron 4-bolt main block with a forged crankshaft, forged dished pistons, a hydraulic roller cam, and BluePrint aluminum heads.
Specifications:
- Displacement: 427 c.i. (7.0L)
- Horsepower: 541 HP
- Torque: 519 lb-ft
- Bore: 4.125 in
- Stroke: 4.000 in
- Compression ratio: 10.0:1
- Block: High-strength cast iron, Windsor-based, 9.500 in deck height, 4-bolt main, 1-piece rear main seal, passenger-side dipstick
- Crankshaft: Forged, 4.000 in stroke
- Connecting rods: Forged, 6.2 in
- Pistons: Forged, dish, 25cc
- Cylinder heads: BluePrint aluminum, 62cc chamber, 2.08 in intake / 1.60 in exhaust valves, 205cc intake / 70cc exhaust runners
- Camshaft: Hydraulic roller, .608 in intake / .608 in exhaust lift, 248/258 duration at .050, 114 deg LSA
- Induction: Fuel injected: Holley Sniper 2 EFI System (BPP550-510-3XX) on a Victor single plane intake
- Balance: Internally balanced front and rear
- Fuel: 91+ octane
- Part number: PSF4271CTF
What's Included: This is a base dressed engine. It comes with: Holley Sniper 2 EFI System (BPP550-510-3XX); Single Plane Intake Manifold, Victor; Pro-Series Ready Run Distributor (BPP3513BK); BluePrint Logo'd Valve Covers (BPP9237); Front Sump Oil Pan; Timing Cover (BPP302351TC); 28 oz Harmonic Balancer (BPP28); Spark Plugs (BPP7938); Spark Plug Wires. No water pump is listed as included, and the timing cover is designed for a standard rotation water pump only. The Holley Sniper EFI is not compatible with the AOD transmission because it has no AOD kick down lever.
Engine Platform: Built to the Ford small block (Windsor-based stroker) platform (BluePrint Pro Series).
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
FAQ
What comes on the PSF4271CTF base dressed engine?
It includes a Holley Sniper 2 EFI System (BPP550-510-3XX), a Victor single plane intake manifold, a Pro-Series Ready Run Distributor (BPP3513BK), BluePrint logo valve covers (BPP9237), a front sump oil pan, a timing cover (BPP302351TC), a 28 oz harmonic balancer (BPP28), spark plugs (BPP7938), and spark plug wires.
How much power does it make?
It is rated at 541 horsepower and 519 lb-ft of torque with 10.0:1 compression, and the specified fuel is 91+ octane.
What fuel injection system is on it?
A Holley Sniper 2 EFI System (BPP550-510-3XX) on a Victor single plane intake manifold.
Can it be used with an AOD transmission?
BluePrint states the Holley Sniper EFI is not compatible with the AOD transmission because it has no AOD kick down lever.
Does it include a water pump?
No water pump is listed among the included items. The timing cover is designed for a standard rotation water pump only.

