The Ford 427 Engine Specs









427 Ford engines




Ford 427 V-8 Engines


427 "W" (4V)
1968
427 SOHC "D" (8V)
427 SOHC "L"(4V)
1964-68
427 "Q" (4V) 1963-64
427 "M" (8V) 1965
427 "R" (8V) 1963-67
427 "W" 1966-67
Engine Type 8 cylinder
90 degree,
Overhead Valves (OHV)
8 cylinder
90 degree,
Overhead Valves (OHV)
8 cylinder
90 degree,
Overhead Valves (OHV)
Displacement 427 cu.inches (CID) 427 cu.inches (CID) 427 cu.inches (CID)
Maximum torque

460 lbs./ft. @ 3,200 RPM

515 lbs./ft. @ 3,800 RPM (4V)

575 lbs./ft. @ 4,200 RPM (8V)

476 lbs./ft. @ 3,400 RPM (4V)
480 lbs./ft. @ 3,700 RPM (8V)
Maximum Horsepower 390 BHP @ 5,600 RPM 616 BHP @ 7,000 RPM (4V)

657 BHP @ 7,500 RPM (8V)

410 BHP @5,600 RPM (4V)
425 BHP @6,000 RPM (8V)
Firing Order 1-5-4-2-6-3-7-8
(Number 1 cylinder on right bank, nearest radiator)
1-5-4-2-6-3-7-8
(Number 1 cylinder on right bank, nearest radiator)
1-5-4-2-6-3-7-8
(Number 1 cylinder on right bank, nearest radiator)
Bore & Stroke 4.232" X 3.784"
(107.59 mm X 96.03 mm)
4.232" X 3.784"
(107.59 mm X 96.03 mm)
4.232" X 3.784"
(107.59 mm X 96.03 mm)
Compression Ratio 10.9:1 12.01:1 11.6:1 (all 1963-64)
10.0:1 (Mercury only)
11.0:1 (most 1965-67)
Oil Pressure (hot) 35 to 60 lbf/in2 35 to 60 lbf/in2 35 to 60 lbf/in2
Mains cross bolted cross bolted cross bolted
Carburetor

Holley 4150 (4V)
automatic choke

Holley 4150-C (4V)

Holley 4160 x2 (8V)

Holley 4150 (4V - "Q" series)
Holley 4150-C (4V - "W" series)
Holley 4160 x2 (8V - "M" & "R" series)

all automatic choke

Size of Carburetor 710 cfm (4V)

780 cfm x2 (8V)

Fuel premium gas super premium super premium
Intake Manifold aluminum (thru 12/1968)

cast iron after 12/1968

aluminum aluminum
Valve train hydraulic lifters solid & adjustable lifters solid & adjustable lifters
Intake 2.082"-2.097" 2.235"-2.265" 2.022"-2.037" (low riser intake before 3/15/1963)
2.082"-2.097" (low riser intake 3/1963-64)
2.185"-2.195" (all medium & hi riser intake)
Exhaust 1.645"-1.660" 1.938"-1.968" 1.645"-1.660" (all low riser intake)
1.723"-1.733" (all medium & hi riser intake)
Distributor single point
vacuum advance
dual point
mechanical advance

Transistor ignition option: single point mechanical advance

dual point
mechanical advance

Transistor ignition option: single point mechanical advance

Spark Plugs Autolite BF-32 Autolite AG-2 Autolite BF-32
Long Block Weight
in lbs.
675 680 590 (4V-1967)
600 (8V-1967)
Emission Controls Thermactor ?
RPM Rev Limiter
1963 - The 427 was first offered February 1963. The "Q" & "R" 427 engines were offered in Galaxies & Mercurys in 1963.

1964 - The "Q" & "R" engines were offered in Galaxies and Mercurys. The "R" engine was available in the Fairlane "Thunderbolt" low rise intake only.

1965 - The Ford Galaxies and the Shelby Cobra got the "R" engine. Mercurys got the "M" engine.

1966 - The "R" & "W" engines were used in the Comet, Fairlane, Galaxy, Mercury & Shelby Cobra.

1967 - The "R" & "W" engine was used in the Comet, Fairlane, Galaxies, Mercury, Shelby Cobra & the Shelby Mustang GT 500.

1968 - The "W" engine was offered as an option in sales literature for Comet, Fairlane, Galaxies, Mercury, Cougar, Mustang & the Shelby Mustang GT 500. The W code 427 was the standard engine in the 1968 Mercury Cougar GT/E. In mid year, the W code was replaced in production by the 428 CJ. No other examples of this engine actually being installed have been found.

This engine, the infamous 427, was featured as an option on many cars such as the Shelby Mustangs in 1967 and 1968, but no examples have been located from the factory. The engine was dealer installed.

Both cast iron and aluminum heads were offered. The listed weight is the maximum for a complete 4V engine.

The 427 "D" and "L" engines were offered in 1964 in a Galazie 500. After late 1969 those engines were available from Holman-Moody.

This page was created on August 31, 2000, it was last updated on Sunday, July 08, 2001 .

Information is from several Ford sources.

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