View Poll Results: Should I switch motors
Switch to the low mileage motor
5
83.33%
Keep the old one.
1
16.67%
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Should I get the new engine???
Thread Starter
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Posting Guru
Joined: Jan 2003
Posts: 1,507
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From: Magrath
Should I get the new engine???
I currently have 190000 on mine. The neighbor just told me that he has a I-6 from a 91 (my truck is a 92) that only has 70000 miles on it. He also said he would sell it to me for $200-$300.
What do you think? Should I switch out or keep mine. I know I will have to pull mine this year to replace the oil pan so the labour isn't to much of an issue.
What do you think? Should I switch out or keep mine. I know I will have to pull mine this year to replace the oil pan so the labour isn't to much of an issue.
Laughing Gas
Joined: Jun 2003
Posts: 1,218
Likes: 2
From: Parkville, MO (KC)
Grab the one with 70k for $200, no more. Put it in a corner and wait till the other one blows. Then swap. Could be years before the old one craps out. Of course, if you intend to pull the whole engine to relace the pan (why??) then I guess you could just get it overwith. But 190k is not shot for a 300. Could do a compression test on both engines, infact would be a good idea, before you end up with a worse engine AFTER the swap.
Junior User
Joined: Jun 2003
Posts: 57
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I would grab that second one and use it later if needed. As far as changing the oil pan: Get a jack under the engine, remove the mounting bolts, jack up the engine high enough to work and block it up with some wood blocks. You should be able to change the pan that way.
New User
Joined: Dec 2003
Posts: 19
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From: San Jose
I've got 208k on my 300 and it doesn't burn any oil, just leaks it everywhere. I've heard rumors that the 300's in some of the ups trucks have clocked up to 1 million miles on them. If its got oil and it doesn't overheat you got no problems.
Mayne
Mayne
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Posting Guru
Joined: Jan 2003
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From: Magrath
Originally posted by Maynster
I've got 208k on my 300 and it doesn't burn any oil, just leaks it everywhere. I've heard rumors that the 300's in some of the ups trucks have clocked up to 1 million miles on them. If its got oil and it doesn't overheat you got no problems.
Mayne
I've got 208k on my 300 and it doesn't burn any oil, just leaks it everywhere. I've heard rumors that the 300's in some of the ups trucks have clocked up to 1 million miles on them. If its got oil and it doesn't overheat you got no problems.
Mayne
Posting Guru
Joined: Jun 2002
Posts: 1,288
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From: redding U.S.A.
well if it were me, i would buy the 300, and keep it sitting in the garage. Then i would slowly rebuild it when i had the spare cash, and put a little more tq in her too!
i wouldn't worry about your old 300 crapping out on you any time soon. When 300s go, they have horribly long, drawn out deaths, starting at 250-300k and going till... well i guess they never do die do they?
i wouldn't worry about your old 300 crapping out on you any time soon. When 300s go, they have horribly long, drawn out deaths, starting at 250-300k and going till... well i guess they never do die do they?
Trending Topics
Elder User
Joined: Sep 2003
Posts: 926
Likes: 3
From: SE, Michigan
The 300 in my 1982 F100 has 312,000 miles on it. It starts and runs fine, but when you let the clutch out and give it gas you can hear alot of ticking and chattering from the valve train. No rod knock though. It sure has a loss of power though.
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Laughing Gas
Joined: Jun 2003
Posts: 1,218
Likes: 2
From: Parkville, MO (KC)
If you want to rebuild an engine becuase "its fun" and you'd like to do it yourelf, then great. If you want to build a screamer and need to throw a bunch of performace parts into it, then fine. But these days, rebuilding an engine to stock specs is best left to a factory engine rebuilder. A long block from Jasper is like $1200. You cannot do what they all do for that, if you count your labor for much, and if you have to pay a machine shop to do much of anything. JMHO
Posting Guru
Joined: Dec 2002
Posts: 1,113
Likes: 0
From: Remsen, NY
Just be careful with the air injection stuff. Make sure that if your truck has the air injection lines to the head just over where the injectors are that your used lo-miles motor does too. I know my '91 does not have the holes but a replacement '92 motor I bought does. No problem for me, I can just plug them but going the other way is more difficult, you need a different head, it's a different casting.
Posting Guru
Joined: Sep 2003
Posts: 1,276
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From: Auburn/ Opelika
yeah, get the engine and sit on it. I'd do my homework and make sure the swap will be as painless as possible, lines, air sensors, etc. You know what you are talking bout though. Good luck. -wb
Senior User
Joined: Nov 2002
Posts: 298
Likes: 1
From: Kentucky
I have a solution
Buy the old one(1991) for $200, Swap it out and I will give you $150 for your old one!! I need the core. Fan to Flywheel with manifolds. When can I pick it up?? 
OR buy the 1992 for $200 and I will give you $300 for it, Then you will have no $$$ in the repairs to your truck..
It is a no lose situation...
ftwfred
OR buy the 1992 for $200 and I will give you $300 for it, Then you will have no $$$ in the repairs to your truck..It is a no lose situation...
ftwfred