1965 Mustang Engine Information & Specs - 289 Cubic Inch V-8

1965 Mustang Engine Information & Specs – 289 Windsor V8 (4.7 L)

289 Windsor V8 Technical Specs & Data

1965 Mustang Engine Information – 289 cubic inch V-8 (4.7 L Windsor V8)

The 289 Windsor V8

This is Ford’s V8 90 degree overhead valve engine that everyone wanted in the first few Mustang years. It was dependable, economical to maintain, had adequate power and was easily modified.

In 1965 through 1966, you could get the 289 in either a 2 barrel or four barrel version. If you wanted the two barrel setup, you received an Autolite 2100 equipped with an automatic choke. If you wanted the “D” coded car in 1964 & 1965 you received an Autolite 4100 (4V) equipped with an automatic choke. If Your car had the “A” code, from 1965 – 1967 the engine was equipped with an Autolite 4100 (4V – 1965-66) and in 1967 it received an Autolite 4300-A (4V) square bore base with an automatic choke. For those power hungry individuals that ordered a “K” car the Autolite 4100 (4V) with an automatic choke was installed. In 1965 & 1966 they went to a manual choke. Shelby GT350’s were blessed or cursed (opinions waver) with a Holley 4160-C 4V and a manual choke.

All non-“K” cars were equipped with a single point, vacuum advance distributor. “K” cars received the dual-points mechanical advance distributor. All intake manifolds were cast iron except the Shelby versions that were cast aluminum. All engines installed in Mustangs had a cast iron block.

You younger readers may not even know that in the 1960’s you could buy a super premium gas right at the pump! Sunoco was the best as I remember it. Now this stuff was like aviation fuel. Super hot engines like the HiPo 289 thrived on the super premium gas. The “A” code cars used the premium gas. “K” code cars between 1963 and 1965 ran best and the super premium gas after that, premium gas was recommended. Shelbys were to run the super premium and all other cars performed on regular gas. But that was back before the U.S. Government screwed up the gasoline and regular gas was good (and cheap). Good God, is it any reason people hate and distrust the government and its officials.

Engine colors when it first came out were black block and gold valve covers.

Engine Basics

Year 1965-67 “A” Code 1965 – 1967 “C” Code 1964 – 1965 “D” Code “K” Code all years “K” Code Shelbys
Cylinders 8 8 8 8 8
Power (hp) 225 hp @ 4400 RPM 200 hp @ 4400 RPM 210 hp @ 4400 RPM 271 hp @ 6000 RPM 306 hp @ 6000 RPM
Torque (lb/ft) 305 lb/ft @ 3200 RPM 282 lb/ft @ 2400 RPM 300 lb/ft @ 2800 RPM 312 lb/ft @ 3400 RPM 329 lb/ft @ 4200 RPM
Compression 10.0:1 9.3:1 10.0:1 10.5:1 (65) 10.5:1 (65)
Displacement 289 cu / 4.7 liters 289 cu / 4.7 liters 289 cu / 4.7 liters 289 cu / 4.7 liters 289 cu / 4.7 liters
Bore x Stroke 4.000 x 2.87 4.000 x 2.87 4.000 x 2.87 4.000 x 2.87 4.000 x 2.87

Engine Specs (289 cid V8)

Name 289 “A” 289 “C” 289 “D” 289 “K”*
Compression 130-170 psi 130-170 psi 130-170 psi 130-170 psi
Compression Ratio 10.01:1 (1965), 9.81:1 (1966-67) 9.31:1 (1963-64), 9.81:1 (1965-67), 8.71:1 (1968) 9.3:1 (1964-67)
11.6:1 (pre 4/64), 10.5:1 (1965), 10.0:1 (1966-67)
Distrib. rotation Clockwise Clockwise Clockwise Clockwise
Dwell @ idle rpm 26-28 1/2 30-33
Engine Type 8 cylinder, 90 degree, Overhead Valves (OHV) 8 cylinder, 90 degree, Overhead Valves (OHV) 8 cylinder, 90 degree, Overhead Valves (OHV)
8 cylinder, 90 degree, Overhead Valves (OHV)
Exhaust 1.442″-1.457″ 1.442″-1.457″ 1.442″-1.457″ 1.442″ – 1.457″
Firing Order 1-5-4-2-6-3-7-8 Counter clockwise 1-5-4-2-6-3-7-8 Counter clockwise 1-5-4-2-6-3-7-8 Counter clockwise
1-5-4-2-6-3-7-8 Counter clockwise
Ignition Timing 6 degrees (manual), 8 degrees (manual) 6 degrees 6 degrees (manual), 8 degrees (manual) 12 degrees
Intake 1.773″-1.788″ 1.662″-1.678″ up to 2/1964, 1.773″-1.783″ after 2/1964 1.773″-1.788″
1.663″ – 1.678″ (before 4/64), 1.773″ – 1.788″ (from 4/64 thru 1967)
Manifold vacuum 18 inches at idle 18 inches at idle 18 inches at idle 18 inches at idle
Mechanical valve adj. (Hot) HiPo Engine, 1965 & 66 = 0.018 Intake & exhaust, 1967 = 0.019 Intake/0.021 Exhaust HiPo Engine, 1965 & 66 = 0.018 Intake & exhaust, 1967 = 0.019 Intake/0.021 Exhaust HiPo Engine, 1965 & 66 = 0.018 Intake & exhaust, 1967 = 0.019 Intake/0.021 Exhaust
HiPo Engine, 1965 & 66 = 0.018 Intake & exhaust, 1967 = 0.019 Intake/0.021 Exhaust
Oil 5 quarts of 10W30 or 1W40 5 quarts of 10W30 or 1W40 5 quarts of 10W30 or 1W40
5 quarts of 10W30 or 1W40
Oil Pressure – hot 35 to 60 lbf/in2 35 to 60 lbf/in2 35 to 60 lbf/in2 35 to 55 lbf/in2
Point Gap .014″-.016″ 0.017 .019″-.021″
Spark Plug Gap .032″-.036″ .032″-.036″ .028″-.032″
Spark Plugs Autolite BF-42 Autolite BF-42 Autolite BF-42 Autolite BF-42
Taxable HP 51.2 51.2 51.2 51.2
Valve arrangement R. Side I E I E I E I E Front to rear R. Side I E I E I E I E Front to rear R. Side I E I E I E I E Front to rear
R. Side I E I E I E I E Front to rear
Valve arrangement L. Side E I E I E I E I E I Front to rear L. Side E I E I E I E I E I Front to rear L. Side E I E I E I E I E I Front to rear
L. Side E I E I E I E I E I Front to rear
Valve train hydraulic lifters hydraulic lifters hydraulic lifters solid /adjustable
Weight, 465 lbs – long block 460 lbs – long block 465 lbs – long block 475 lbs – long block
Years 1965-1967 1963-1968 1964-1965 2/63 – 1968

Engine Torque Specifications

All torque specifications provided in this table are those recommended by FORD. If you use special bolts, follow the torque specifications provided by the manufacturer. I recommend that you use the 3 step torque technique where you torque down the bolts in three equal steps. Once you have reached the maximum recommended torque setting, go around one more time. Do not torque in a circular pattern. Always torque cross to cross.

Head bolts 65-70
Crank cap bolts 60-70
Rod end caps 19-24
Intake bolts – iron 12-15
Exhaust manifold bolts 15-20
Harmonic damper 70-90
A/C Compressor mounts
Engine fan 15
Motor mounts to engine 65
Bellhousing bolts
Trans to bellhousing 25
Flywheel to Crankshaft 75-85
Oil pan bolts 15
Valve cover bolts 10
Carburetor mount bolts
Oil pump 25
Spark plugs
Trans. inspection plate
Water pump bolts 20
Clutch pressure plate 35
Flexplate 85
Upper cam bolt 40
Cam thrust plate 10

Crankshaft Bearing Journal Specifications

Main Bearing Journal (inches)

Journal Diameter 2.2482 – 2.2490
Oil Clearance 0.0005 – 0.0024
Shaft end play 0.004 – 0.008
Thrust on number 3

Connecting Rod Journals

Journal Diameter 2.1228 – 2.1236
Oil Clearance 0.008 – 0.0026
Side clearance 0.010 – 0.020

Piston Ring Specifications

Comp Ring Width

Top 0.0774 – 0.0781
Bottom 0.0770 – 0.0780

Ring side clearance

Top 0.0019 – 0.0036
Bottom 0.0020 – 0.0040
Oil ring Snug

Ring gap width

Top 0.010 – 0.020
Bottom 0.010 – 0.020
Oil Ring 0.015 – 0.055

Piston Specifications

Code Red 3.9984 – 3.3990 3.9978 -3.9984 (HP)
Code Blue 3.9996 – 4.0002 3.9990 – 3.9996 (HP)
0.003 Oversize 4.0008 – 4.0014 4.0002 – 4.0008 (HP)
Piston to Cyl. Bore clearance 0.0018 – 0.0026 0.003 – 0.0038 (HP)
Piston Pin Bore Dia. 0.9123 – 0.9126 0.9123 – 0.9126 (HP)

Valve Specifications

Year 1965
Seat angle 45
Face angle 44
Valve spring pressure lbs/inches 161 – 178 @ 1.380
Valve spring installed height (in) 1 3/4 – 1 25/32
Stem guide clearance (in) – Intake 0.0010 – 0.0027
Stem guide clearance (in) – Exhaust 0.0020 – 0.0037
Stem Diameter (in) – Intake 0.3416 – 0.3423
Stem Diameter (in) – Exhaust 0.3406 – 0.33413