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Old March 27th, 2008, 10:37 AM   #1
cham
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Default A Ford 300ci I6?

So I've heard a nice and interesting tidbit about a certain motor that Ford made back in the 70's. As far as details go, all that was discussed was that it was an I6 with roughly a 300ci displacement. Heard that for awhile it was used in the Mustangs of the era (I know, I just admitted to knowing about the Mustang II) and from the source that I got this from, in a few F250's from that time as well.

So really my question is, what exactly was it placed in, all specifics (hp and torque specifically), and if anyone has placed one of these in a TJ. That 2.5 that is in it has to go.

Last edited by cham; March 27th, 2008 at 11:04 AM. Reason: Title
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Old March 27th, 2008, 10:42 AM   #2
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http://en.wikipedia.org/wiki/Ford_Mustang

http://en.wikipedia.org/wiki/Ford_F-Series

Last edited by bigjay; March 27th, 2008 at 10:45 AM.
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Old March 27th, 2008, 10:44 AM   #3
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Ford used the 4.9 300cu in. straight-6 in base Mustangs. They were also found in F150 pickups until 1997 when they were replaced with a V6.
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Old March 27th, 2008, 10:45 AM   #4
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fantastic motor used for many years in F and E150's . Low on HP but high on Torque and durability
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Old March 27th, 2008, 10:46 AM   #5
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http://en.wikipedia.org/wiki/Ford_Straight-6_engine
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Old March 27th, 2008, 11:19 AM   #6
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Good stuff, was only able to pull out of it that the 300 has a max of 170hp, any one know its torque rating?
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Old March 27th, 2008, 11:22 AM   #7
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Quote:
Originally Posted by xjmichigan View Post
Ford used the 4.9 300cu in. straight-6 in base Mustangs. They were also found in F150 pickups until 1997 when they were replaced with a V6.
don't forget the 144 -250 and 240-300 came stock in mustangs.

IIRC it was used in f150-f350 and last used in 98 before the superdutys. You could get it later as an industrial engine.


why would you put it in your jeep? There is more aft mkt support for the Jeep six than the Ford six. The ford six is starting to catch up though and I would love to pick up an alum head for mine.

You can get all the details at fordsix.com/forum. just about the greatest place for any info on the motor.

edit: tq was usually a little higher than a 302. somewhere over the 200 mark
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Old March 27th, 2008, 11:28 AM   #8
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Quote:
Originally Posted by cham View Post
Good stuff, was only able to pull out of it that the 300 has a max of 170hp, any one know its torque rating?
220 rings a bell but im not sure
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Old March 27th, 2008, 11:31 AM   #9
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in a f150 they had aprox 145 horse and 251 ft-lbs.
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Old March 27th, 2008, 01:54 PM   #10
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Best engine Ford made period
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Old March 27th, 2008, 02:00 PM   #11
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still running it in my daily driver. Awesome torque. Put a manual behind it,a nd your set.
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Old March 31st, 2008, 10:48 AM   #12
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I used to have a fleet account where we would rebuild the 300's in bread trucks. These things can take some abuse!

I got one engine on the pallet that when I flipped it over it sounded like a drum full of broken glass. I pulled off the head and only about two 1 inch strips of cylinder wall were left on one cylinder. The rod was pretzeled and the piston was everywhere. I called the mechanic and told him to ask the driver what he did to this thing. He said it started knocking for about 50 miles then BAM! He kept his foot to the floor and clutched it until he made it back to the bakery another 10 miles and it finally died when he let his foot off the gas to turn into the driveway of the bakery. What a mess! Stay away from anything you might find in a bread truck -lol.

My 96 F150 has 265,000 on it and runs like new. If you can put a fuel injected one in it will last forever.
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Old March 31st, 2008, 11:03 AM   #13
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Quote:
Originally Posted by fsumotorhead View Post
Best engine Ford made period
X a Kabillion or so.

Had one in an '81 E150. That thing knocked down 19MpG easily on the highway, and ran forever. A 300 with injection would be an awesome Jeep engine.
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Old March 31st, 2008, 11:17 AM   #14
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Greate engines have heard of built ones in the 300-400HP and 400+ ft lbs of torque. Never seen or heard of 300 in a mustang though.
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Old March 31st, 2008, 12:01 PM   #15
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they have torque like non other. not a fast or high revvin motor but ungodly strong.
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Old March 31st, 2008, 02:01 PM   #16
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The 300 is a GREAT motor, the torque on it is ridiculous, it would pull a jeep around like nothing.
i believe it was produced until 1996 i think. it came in 150s and broncos (maybe)
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Old March 31st, 2008, 02:22 PM   #17
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Quote:
Originally Posted by mooseracing View Post
The ford six is starting to catch up though and I would love to pick up an alum head for mine.

You can get all the details at fordsix.com/forum. just about the greatest place for any info on the motor.
X a gagillion.

Though I ran across a neat litle bit of info just the other day on them:

Quote:
Originally Posted by 6bangerbill
Q: Does anyone build an aluminum or crossflow head, or a combo of the two for our engines?

A: as of now, there is the AJ DRAG-RACE ONLY head, it is a strip only part because it has no provisions for a cooling system, so it is understandably unsuitable for the street
there has been talk about an Aluminum Head unfortunately it looks like we will have to wait a good while to get this head, if it ever gets produced

UPDATE! - member 6bangerbill has created an aluminum head out of two LS1 heads (dubbed the FS1), which bolts directly to the 300 block, there are currently no bolt on intakes or exhaust headers, although he is working to see if something can be adapted, his engine is currently running with two Buick headers

Update,
I sell the fs1 hibred converted ls1 heads for $1500.00 on your head cores now. If you are really interested, the new ls7 (L92) heads are now on the market from GMPP. With the same ls1 bolt pattern. Oh yea, they flow 332 cfm @ 28" thru 2.170 diameter intake valves in stock as cast, non ported condition! A 4" bore is manditory for valve clearance, maybe a little head bolt offset too. These are the heads used on Cadillac Escalades and Chevy trucks. Ported versions report 380 cfm with 2.180 dia valves.
The direct link to the 300 six part of the forums:

Clicky here!
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Old March 31st, 2008, 02:39 PM   #18
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Quote:
Originally Posted by mooseracing View Post
don't forget the 144 -250 and 240-300 came stock in mustangs.

IIRC it was used in f150-f350 and last used in 98 before the superdutys. You could get it later as an industrial engine.


why would you put it in your jeep? There is more aft mkt support for the Jeep six than the Ford six. The ford six is starting to catch up though and I would love to pick up an alum head for mine.

You can get all the details at fordsix.com/forum. just about the greatest place for any info on the motor.

edit: tq was usually a little higher than a 302. somewhere over the 200 mark
Mainly, because I like Fords, and I6's are torquey bastards. Though I have to be honest, I like the idea of it being a little bit of a novelty as well. Liked the idea of going to a diesel, but I figured that it would be:
a.) underpowered
b.) overweight, and
c.) wtf is up with the price of diesel?
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Old March 31st, 2008, 11:06 PM   #19
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http://www.cliffordperformance.net/h...s/gallery.html

300 HP is actually quite easy out of a 300. And reliable. If you are really serious I still have a heavily massaged head,aluminum 4bbl intake(OFFY) Cam and headers. I think I may even have the NOS plate and solenoids somewhere.
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Old April 1st, 2008, 09:22 AM   #20
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you dont know anything about mustang II's

the straight 6 was never offered in the 74-78 mustang or any pinto, it was not 300 CID either, rather 250. correct me here guys if i am wrong but the 300 didnt come out till the mid 80's

in 1974 the mustang II only came with 2 engine options, a 2.3 I4 and a 2.8 German designed v6 that later evolved to the 2.9 ranger bronco II engine and then turned into the 4.0 OHV engine.

people were outraged and demanded a V8, so in 1975 ford offered a very choked down and under powered 302 4.9L V8. i think it was rated at 150 HP.

yes I know a lot about mustang II's, this was my first car and i still have it this day, 24 years later!

i have also had 8 other of these cars, personal favorite was a 1978 T top factory V8 car, restored it for the X wife, cought her and my X best friend doing each other in his truck at the end of my street, needless to say i sold the car less then 3 months later.
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