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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

300/straight 6 engine

 
  #2  
Old 08-23-1999, 06:16 AM
Dean
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300/straight 6 engine

My '88 has the 300 I6 engine. Although I don't know about the towing aspect of the engine, I know that Ford Motor Company has installed these engines in a lot trucks over the years...and continues to do so. They are durable engines. I've read on this newsgroup where somebody's F150 had over 300k miles on their 300 I6.

I, personally, haven't had any major problems with mine (some engine hesitation during warmup but goes away after engine is hot).

It's not hard to find these engines.
 
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Old 08-30-1999, 08:30 AM
Maniak
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300/straight 6 engine

>I have a question: I have an
>89 F150, automatic, IL6. What are
>the engine specs on that particular
>engine. Is that the same engine
>you are refering to as the
>300hp, or is this a different
>engine??


The 300 inline 6 motor is roughly 120hp (depending on the year) but it also has around 250 ft-lbs torque (again depending on the year). I know they were offered back around 1973 in a pickup. The distributor in my 84 van is out of a 1973 pickup (I needed one out of a non computer controlled, non black box ignition). They definately have tons of torque but they are no replacement for a big block. If your comparing a 302 to a 300 inline 6 the 300 will do better on the bottom end (more torque down low in the rpms). The 302 can be made into a screaming motor by putting all kinds of mods on it but you will not get the same type of torque you get out of an inline 6. As for reliability, I have 180,000 miles on it and I'm the second owner. It looks like the previous owner rebuilt it (it has .030 pistons in it) and I blew the head gasket on it. I am very hard on this motor and very pleased by it. It is a 1984 model so it has the emmisions equipment on it but most of it was bad when I got the van. I fabricated my own EGR and O2 pump connections when I put on my offenhauser intake manifold with my holley carb (which I'm switching to a 625 carter soon). There are intake/exhuast manifolds available for the 300 motor if you want more power and cams also. If you can get one pre-egr it will make you life much easier when you change the intake. Creating your own egr is a pain in the re ar and may not be emmision legal in your area (it is in Tucson Arizona).

Mark
 
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Old 08-31-1999, 07:33 AM
ice man
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300/straight 6 engine

Actually the later years starting at 87 all 300 came with fuel injection and that brought the hp up to about 145-150. I am pretty sure they stopped making the 300 back in 1996.
 
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Old 08-31-1999, 03:21 PM
Pastmaster
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300/straight 6 engine

>Actually the later years starting at 87
>all 300 came with fuel injection
>and that brought the hp up
>to about 145-150. I am pretty
>sure they stopped making the 300
>back in 1996.


Actually, Ford started putting Efi in 1985 to the 300 and the 302. Yes 1996 was the last year
 
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Old 08-31-1999, 03:24 PM
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300/straight 6 engine

 
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Old 02-15-2011, 11:02 AM
taz66f100
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i6 300

the first year ford had the 300 i6 was in my truck the 66 ford f100 and they range from 180 hp to the most ive seen is 250 hp stock but you can do many different things to boost them like adding a 4 barrel carb
 
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Old 02-15-2011, 11:54 AM
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I sure hope the OP hasn't been waiting around the last 12 years for an answer to his question.
 
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Old 02-15-2011, 12:00 PM
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Originally Posted by Dorsai View Post
I sure hope the OP hasn't been waiting around the last 12 years for an answer to his question.
Especially for a slightly incorrect answer. The first year of the 300 was 65....
 
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Old 02-15-2011, 02:22 PM
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And I thought efi didn't show up til 87? My cousin had an 86 with a factory carbed 300-6. *shrug*
 
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Old 02-15-2011, 03:59 PM
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Wow an antique thread
 
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Old 02-16-2011, 03:38 PM
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Antique thread aside...

1965 was the first year of the 240-I6 and the 300-I6.
1974 was the last year of the 240-I6.
1975 was the first year of the 300-I6 as the standard engine, it was optional before that year.
1987 was the first year of EFI.
1996 was the last year of the 300-I6.

The earlier 240-I6 and 300-I6 are almost identical in apperance. Infact most older 240-I6's are rebuilt to 300-I6 specs when needing rebuilt. The 300 was avaliable in F-100, F-250, F-350 and F600 applications.
 
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Old 11-27-2014, 05:28 AM
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do anyone have the distributor number or what one would I need for a 1990 ford 300 inline 6 it was changed to carb not efi
 
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Old 11-27-2014, 08:38 AM
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4.9 Engine History


  • The 300 cu in (4.9 L) six was added for Fordís F-series trucks in 1965. It was essentially a 240 cu in (3.9 L) with a longer stroke. The two engines are nearly identical; the differences are in the rotating assembly and combustion chamber sizes in the head.


  • Engine sizes were converted to metric for 1983, causing the 300 to become the "4.9". Fuel injection and other changes in 1987 pushed output up to 145 hp (108 kW) with 8.8:1 compression. The 4.9-liter 6-cylinder was built in the Cleveland, Ohio engine plant.


  • Almost all UPS trucks used this motor and many UPS trucks still use the 300 to this day.


  • The 300 was also used in larger vehicles such as dump trucks, many weighing into the 15,000Ė20,000 pound range, as well as Airport Baggage Tow Tractors, ski lifts, power generators, oil derricks, wood chippers, and tractors.
 

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