2.7 engine rebuild mods - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 17 (permalink) Old 12-02-2011, 04:32 PM Thread Starter
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Talking 2.7 engine rebuild mods

Hello: anybody out there with 2.7 rebuild experience: do you know about, or have you heard about any crank/oil galley mods that can be done on these motors that helps overall longevity/prevention of problems? Thanks for any input
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post #2 of 17 (permalink) Old 12-02-2011, 04:38 PM
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Jaspar Engines is the only company I know of that claims to modify the oil galleys in the heads prior to the 02's.....dunno if there doing it to the 02's and newer.
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post #3 of 17 (permalink) Old 12-02-2011, 08:13 PM Thread Starter
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I'm just curious, because I talked to a guy in the midwest recently who says that he's done quite a few 2.7's and he modifies the gallies and the crank, but he wouldn't share what he does. I guess there are guys who've discovered secrets about these motors while rebuilding them, and it would be nice if any belong to this forum and wouldn't mind sharing their knowledge with those who may wish to rebuild their own engines.
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post #4 of 17 (permalink) Old 12-03-2011, 01:23 AM
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More than likely it was a method of opening up the oil return lines clearly. A drill and a grinder ball can do that for you.
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post #5 of 17 (permalink) Old 12-03-2011, 01:24 AM
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I'd just go and open up some return lines and see how it runs... Then go buy new heads or a new motor when you toast that one, and try again - that is why these guys don't freely share the knowledge - yes, it'd be nice, but they invested a lot of money into doing this, they need to recoup that money through engine sales.
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post #6 of 17 (permalink) Old 12-03-2011, 01:55 AM
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get a 3.2/3.5 and avoid the headaches lol
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post #7 of 17 (permalink) Old 12-03-2011, 02:45 AM
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get a 3.2/3.5 and avoid the headaches lol
But that isn't no fun. That's just drop-in-and-forget. No fun!
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post #8 of 17 (permalink) Old 12-03-2011, 09:27 AM
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If it's a '98 or '99, replace the oil pump. They redesigned it for higher capacity (plug-n-play).

Replace the valve stem seals to correct or prevent high oil usage and smokey exhaust.
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post #9 of 17 (permalink) Old 12-03-2011, 10:49 AM
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If it's a '98 or '99, replace the oil pump. They redesigned it for higher capacity (plug-n-play).

Replace the valve stem seals to correct or prevent high oil usage and smokey exhaust.
I miss my smokey exhaust....:
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post #10 of 17 (permalink) Old 12-03-2011, 11:46 AM
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I miss my smokey exhaust....:
Ahh - put a drip tube in it.
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post #11 of 17 (permalink) Old 12-03-2011, 03:47 PM
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Ahh - put a drip tube in it.
: 10-4
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post #12 of 17 (permalink) Old 12-03-2011, 11:18 PM Thread Starter
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Well, I thought I'd give it a shot, anyway. If I don't do anything to the oil gallies when I rebuild this 2.7 I have, I'm going to at least install an aftermarket liquid-to-air engine oil cooler to help keep oil temps down. I know it seems most guys don't/won't want to mess with the 2.7, but I want to for my own knowledge and experience, so I'm going to just see what I can see as I'm disassembling it, and I'll more than likely gain something that'll be helpful not just to myself, but to anyone else that wishes to do their own engine(s).
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post #13 of 17 (permalink) Old 12-04-2011, 12:41 PM
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What kind of oil to air oil cooler will you put in, and how will you plumb it into the system? something like an oil filter relocation and cooler set-up?
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post #14 of 17 (permalink) Old 12-06-2011, 06:04 PM Thread Starter
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I saw some aftermarket units on a website, and they had several options, according to engine power output. They had two types: one which locates the filter remotely, and one that uses an adapter sandwiched between the filter and the original filter pad on the engine. The interchanger or cooler itself, I would probably try to mount it on the front side of the rad/condenser unit, where it would hopefully get sufficient airflow.
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post #15 of 17 (permalink) Old 12-15-2011, 08:45 PM
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Sorry....Exactly how much of a PITA was it to change out the exhaust valve seals?
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