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Author
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Topic: 300 cu. in. I6
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68Jcode
Journeyman Posts: 11
From: Atlanta, Ga, USA
Registered: Jun 99
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posted 05-31-2001 08:17 PM
   
Good evening all,
I've got a friend with an '86 F150, 2wd, 3spd w/ OD, 300 cu.in. 6cyl.The truck is in good shape with the exception of the broken connecting rod on the #5 piston. I am looking for a used engine to toss in there, and have some questions regarding interchangibility from year to year. I believe the used the 300 until the mid 90's. Could one of the later model (and presumbly lower mileage) fuel injected long blocks be made to work with the carb on this truck? My most basic concern is that the newer blocks will not have a cavity for the fuel pump, much less and eccentric on camshaft to drive it. I am sure this problem could be overcome with an electric fuel pump, but what else could possibly go wrong? Sorry so wordy, any input is welcome. Andrew
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SteveLaRiviere
Administrator Posts: 32655
From: Saco, Maine
Registered: May 99
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posted 05-31-2001 08:40 PM
Well, you would need the FI fuel tank, pressurized lines, and computer with all it's harnesses and sensors for starters.You be best off if you had a donor truck. ------------------
'70 Mustang Mach 1 351C 4V/FMX/3.50 open {on the way!}
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC {Wife's car...}
All Fords since 1977
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joe
Gearhead Posts: 515
From: Los Angeles
Registered: Feb 2001
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posted 05-31-2001 10:06 PM
Geez, I'm so slow today 
you mean switch an injected 300 to a carb?
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MLariviere
Moderator Posts: 3277
From: Biddeford,Me.USA
Registered: May 99
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posted 05-31-2001 10:14 PM
I'm sure the carb manifold would bolt to a later engine. As for the fuel pump,the block probably has a blockoff plate,but no eccentric. Anyone with a FI 300 out there to look? Why not just fix the rod and piston in the engine?
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joe
Gearhead Posts: 515
From: Los Angeles
Registered: Feb 2001
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posted 05-31-2001 10:32 PM
My dad bought an injected 300, striped the FI stuff and put a good ol' carb on it.
For a fuel pump he used on from a toyota forklift. A friend had it laying around.
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68Jcode
Journeyman Posts: 11
From: Atlanta, Ga, USA
Registered: Jun 99
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posted 06-02-2001 02:51 PM
Thanks for the replies guys. I will try to address all of the questions you raised, and clarify my idea.---Why not fix the old engine?? Because the rod put a hole in the block, and we are looking for a fast turn around on this one. ---Do I want to update to a FI engine?? NO. I want a low mileage long block that I can bolt my existing carb and accessories to, and never know it wasn't original. This is definitely a quick and dirty job. It sounds like the basic consensus is that I should be able to jam a long block from an FI truck in there, use my intake, and exhaust manifolds, rig up a low pressure electric fuel pump, and be in business. Let me know if you think I am kidding myself. After a little more research, I am actually contemplating tossing in a remanufactured long block. The appear to be available locally for $800 to $1200, with cheap one being a Pep Boys special, and the more expensive from a reputable machine shop. Thanks,
Andrew
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MLariviere
Moderator Posts: 3277
From: Biddeford,Me.USA
Registered: May 99
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posted 06-02-2001 09:21 PM
I think what you want will work. You don't have a rebuildable core,eh?
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SteveLaRiviere
Administrator Posts: 32655
From: Saco, Maine
Registered: May 99
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posted 06-03-2001 03:53 PM
quote:
Originally posted by 68Jcode:
It sounds like the basic consensus is that I should be able to jam a long block from an FI truck in there, use my intake, and exhaust manifolds, rig up a low pressure electric fuel pump, and be in business. Let me know if you think I am kidding myself. After a little more research, I am actually contemplating tossing in a remanufactured long block. The appear to be available locally for $800 to $1200, with cheap one being a Pep Boys special, and the more expensive from a reputable machine shop.
In that case, you are set. Just swap long blocks. I'd forget about the cheapo rebuilts, though. They are cheap for a reason. ------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.50 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC {Wife's car...}
All Fords since 1977
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tempo1993
Gearhead Posts: 583
From: CT, the home of high taxes
Registered: Jul 2000
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posted 06-03-2001 04:15 PM
I sit here still in awe that someone blew one up!  But I agree with Steve, avoid the cheap-o rebuilds and go with a block from a reputable shop, I've seen the guts of a pepboys bargain engine, it ain't pretty  On the other hand, I love the 300  My old truck when I get rid of her, had 360,000 miles on it, and still went strong, I just didn't have the time or money for the work needed, none of which was in the engine! So good luck to ya
~Scott~
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joe
Gearhead Posts: 515
From: Los Angeles
Registered: Feb 2001
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posted 06-03-2001 05:15 PM
My dad got the 300 from a shop that pulls engines out of junked cars. Nothing high mileage either, just cars that were smashed up pretty bad early in their life. 
For 500 it's a pretty good deal here.
If you have places like that in Atlanta then that's another way to go.
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