Ford Small Block Windsor Boss 351W 427 (2001)

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Ford Small Block "Windsor" Boss 351W, 427, V8 (90o) cyl, 4 stroke, petrol engine
Introduced in 2001
6997 cc
Click here and here


Cylinders arrangement: V8 (90o)
Strokes: 4
Bore x Stroke: 104.8 x 101.6 mm
Capacity: 6997 cc
Compression ratio: 11.0:1

Construction materials

356-T6 aluminium M-6009-427A, or M-6010-Z351 block 241.3mm deck height, 111.25mm bore spacing and High-performance harmonic balancer
356-T6 aluminium alloy Ford C3 head
Forged 4340 steel crossplane crankshaft with 5 main bearings 70mm diameter
Forged 4130 steel connecting rod, distance center to center 157.5mm
piston compression height 31.62 mm


crossflow design
camshaft in block chain driven with overhead valves (OHV) and 56mm cam journals
2 valves/cylinder - 16 valves total
52.8mm inlet valve diameter
40.6mm exhaust valve diameter


╬Łatural with Ford EEC-V multipoint electronic fuel injection
Turbo version with 2 x Garrett GT35R turbochargers


2004: Elan for ACEMCO team, Bosch MS 4.2 engine management
firing order, 1-3-7-2-6-5-4-8

Cooling and lubrication

water cooled
5 stage lobe style dry sump system

Torque values

Models used and Output

Year Model Induction Compression ratio Power Torque
2001 Saleen S7-R MPFI 11.0:1 600 bhp / 448 KW @ 6400 rpm 746 Nm / 550 ft lbs @ 5400 rpm
20-oct-08-rfactorcentral-8761_saleens7_web_0071.jpg Source
Twin turbo version
Saleen_S7_Twin_Turbo-engine.jpg Source
Twin turbo version
397-m6010z351.jpg Source
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