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Ford 300 Inline 6 Cylinder Engine

The Ford 300 inline six cylinder engine was first introduced for the 1965 model year to be used in the popular F series pickup truck. Ford would keep the 300 in production all the way up until 1996. During its 31 year run, this extremely reliable inline 6 was used in many Ford vehicles and also in anything from tractors and wood chippers to that big brown UPS truck that you see driving around your neighborhood.

Today it is not uncommon at all to see a Ford 300 make it to 300,000 miles or more with no major problems at all. Besides its great reputation for reliability, the 300 I6 puts out an impressive amount of torque with later models pushing 265 pounds of foot torque.

Comment Script

Comments

I am looking for the valve and point adjustments for a '64 ford 262 6 cyl. truck engine
Help...
#1 - Harlan Bloom - 05/04/2009 - 10:40
owner
Is there more information available for the engine specifications. Like point gap and timeing degree. Valve clearance?
#2 - vroc - 01/13/2010 - 10:45
300/6 Compression Ratios
The compression ratios vary. That is a product of the cylinder head isn't it? How do I tell them apart?
#3 - UncleRice - 06/03/2010 - 10:37
water pumps
Is there a reason my new water pump needs a different fan clutch. My PU overheats and I question whether the water pump I bought is correct.
#4 - John - 09/11/2010 - 12:12
Dr.
Please help.Looking for the point gap and spark plug gap of a 1975 Ford 4.9 L Straihgt six
#5 - johann botha - 09/17/2010 - 05:50
Spark Plug Gap for 4.9
The spark plug gap on almost all Ford engines built in the 60s was .034 and point gap should be .025
#6 - Engine Facts Admin - 09/20/2010 - 21:52
engine sitting for around 13 or 14 years
I have an '82 ford F250 2X4 explorer truck that has been sitting for 13 years or better it has over 200,000 miles on it is it still runnable.
#7 - jd730guy - 12/06/2010 - 13:44
I am looking for the spark plug gap for a 1993 F-150 4.9 L inline 6.
#8 - Dan Dugan - 04/15/2011 - 12:04
Overheating
I have a 87 300 that has around 200,000 miles. It is a Jasper rebuild and it overheats. I've changed all the cooling system and even put in a big electric fan, what else could be the problem?
#9 - Josh - 04/19/2011 - 20:44
'74 F250, install '80 300 I6?
Considering buying a friend's '80 F100 with 4spd to swap its 300 I6 into my '74 F250 2WD with broken crank 360 and C6. Anyone know if this is advisable?
#10 - Jon - 04/28/2011 - 20:36
looking for compression for ford 1972 300-6
#11 - ed. allegar - 07/24/2011 - 12:04
overheat
ive pulled down some older inlines, i found that with a good portion that the back part of the block flakes with rust, have you tried an acid flush to clean the block
#12 - konrad - 07/31/2011 - 23:58
I.D. Year
How can you determine the year of a carbruated 300 six?
#13 - Jeff Mitchell - 09/11/2011 - 17:57
Answer: Jeff Mitchell
Look on enginefacts.com Jeff.
#14 - wendl ormsby - 09/20/2011 - 15:57
1986 Ford F150 in-line 6
I am looking for an air cleaner mechanism for my single barrell in0line 6 1986 F150. Anyone have one let me know. thx, Mark and reply to mteskew@gmail.com
#15 - Mark Eskew - 09/26/2011 - 12:27
93 ford f150 inline 300
Can figure out y 5 and 6
cylinder is just dumping gas changed injecters and pressure regular
#16 - Nathan Bengford - 10/14/2011 - 23:01
1982 F150 engine swap
I have a 1982 F150 with a 300 I6 want to replace it with a new fuel injected I6. How much trouble is it and who does it.
#17 - Lance - 10/31/2011 - 11:36
firefighter
the inline 6/300. took it out of my f150 and put it in 350 4x4 with a 435np. ultra low gearing help me go where ever
#18 - tim peter - 11/04/2011 - 12:23
mileage
I,m rebuilding my 1978 300,I would like to know how to get the best mileage out of this engine.for example,cam ,carb.,exhaust,manifold,air filter,etc.thank you,Al
#19 - Al McLauchlin - 11/12/2011 - 09:57
Transmission
I am looking for a 5=speed manual tranny for my 1974 f-250, It has a 4-speed in it now. Any Ideas?
#20 - Dan Piersall - 11/24/2011 - 23:20
owner
Swap 66 .mustang 300 I 6..into a 74 F250 also has a 300 I6(dead)...will it work ?
#21 - jess Pryce - 12/11/2011 - 12:05
swap 66 mustang to 74 f250 that has dead 300/4.9l will it work.
yes but only if the engine in the mustang is really a 240ci(car)or(300ci(truck)engine,they both look alike.300ci engines were not used in mustangs you most likely have a smaller 6 in your pony not a 240/300 engine.
but if it looks exactly like the engine in f250 it's a conversion not a stock mustang.
if the mustang engine appears to be identical then yes it will go but it might be a 240 just as good and durable as a 300.try to get some numbers of the engine block casting.if it's a 240/300 you will need to mix and match mounts,bellhousings and plumbing you have from both vehicles.
#22 - james - 12/18/2011 - 22:26
Looking for motor spec for a 1965 , 300 cubic inch 6cyl engine.
#23 - Harry - 12/26/2011 - 13:23
I would like to know what kind of mileage the "82" F-150 got when it was new, This one is a 4x4, but wondering about the new quote mileage with 4x4 locked out. Thanks.
#24 - Larry Kemnitz - 12/27/2011 - 12:38
1968 bronco
is it possible to swap 170 I6 with 300 I6 in a 1968 Bronco ?
#25 - jerry - 01/01/2012 - 01:02
Mr.
I'm swapping out a 240 inline 6 for a late model 4.9 liter. There is no threaded hole on the left side of the engine block to install the pivot ball for the clutch linkage. Can the new block be drilled and tapped? Is there some lind of adapter for this situation? Thanks.
#26 - brian - 01/04/2012 - 15:59
straight 300/6
i am looking for the thermastat housing, for a ford straight 300/6.. i would like to kno where i can find the part. i have searched every where that i can think of please help me. thank u for ur time..
#27 - savannah - 01/10/2012 - 11:41
I want to swap my 93ford inline six over to a 4x4 will a 5.0 v8 4x4 transmission bolt up to my inline 6?
#28 - graham - 01/11/2012 - 21:42
Retired
I have a 74,F250 Supercab,300,inline-6. Do you know where I can find a carburetor and transmission (5-speed)for this truck? Will any F250 transmission fit this vehicle? What are some of the options I have regarding the carburetor and transmission?
#29 - cgourdine - 01/17/2012 - 09:15
Retired
I would like to know the weight of a inline 6 300 ready to run.No air no power steering,otherwise complete.Thanks
#30 - Ed - 01/19/2012 - 20:29
long live
long live the 300
#31 - brandon - 01/21/2012 - 20:44
looking for ways to get better fuel milage on my 89
I'm very soon gonna rebuild my 89 engine and was wondering what can i do to improve my fuel mileage ???? It's in a f150 pick-up
#32 - randal powell - 01/21/2012 - 22:55
fiber timing gear
what year did they stop (if they did stop)using the fiberglass timing gear in the 300 6 cly.
#33 - John Schossow - 01/26/2012 - 18:21
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Engine Specifications

1965 - 1972 with 1 Barrel Carb
Max Brake Horsepower - 170 @ 3800 rpm
Max Torque - 283 @ 1600 rpm
Stroke - 3.98
Bore - 4.0
Compression - 8.9
Firing Order - 153624

1973 - 1974 with 1 Barrel Carb
Max Brake Horsepower - 101 @ 3000 rpm
Max Torque - 223 @ 1600 rpm
Stroke - 3.98
Bore - 4.0
Compression - 8.0
Firing Order - 153624

1975 - 1977 with 1 Barrel Carb
Max Brake Horsepower - 120 @ 3400 rpm
Max Torque - 223 @ 1600 rpm
Stroke - 3.98
Bore - 4.0
Compression - 8.0
Firing Order - 153624

1978 - 1986 with 1 Barrel Carb
Max Brake Horsepower - Varied from 101 to 120 @ 3000 to 3400 rpm
Max Torque - 223 @ 1600 rpm
Stroke - 3.98
Bore - 4.0
Compression - 8.0
Firing Order - 153624

1987 - 1993 with Fuel Injection
Max Brake Horsepower - 145 @ 3400 rpm
Max Torque - 265 @ 2000 rpm
Stroke - 3.98
Bore - 4.0
Compression - 8.8
Firing Order - 153624

1994 - 1996 with Fuel Injection
Max Brake Horsepower - 150 @ 3400 rpm
Max Torque - 260 @ 2000 rpm
Stroke - 3.98
Bore - 4.0
Compression - 8.8
Firing Order - 153624