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Discussion Starter #1
hey guys, i just got the aluminum plenum cover from hughes engines so i won't have to do it again. my question is: one, has anyone here installed this? and two: if so did you use any type of rtv or other gasket maker when you installed the gasket on the plenum pan? the instructions that come with the kit say to not use any kind of gasket sealer. anyone know why?
 

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i have the hughes kit and it uses the new style metal gasket. no issues in the 1.5 years i have had it.
 

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Discussion Starter #3
mine came with a felpro gasket set. the plenum gasket has metal in it, but the outside is rubber. did you use any kind of sealer when you installed it?
 

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nope, not on the plate. only on the ends of the block when installing the intake back on
 

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Discussion Starter #5
and no blowouts since the install? hope the directions are right. i don't want to do this four times :wall:
 

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I have the Hughes plate also. I installed it right around this time last year with the Fel-Pro gasket that came with it and have had no issues at all. I didn't use any type of RTV or sealer either.
 

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Discussion Starter #7
good deal. it sounded a little fishy to me, but you guys followed the directions and it turned out all right so i guess i'll do the same. thanks for the input. i'm going to do it tomorrow, it's a bit cold out today.
 

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I don't know about robike but my reason not to go M1 was price. The Hughes plate was $100 or so and the M1 was around $400 with the turtle and everything.
Another reason was that I am happy with the performance of my truck and didn't need a reason to want to put my foot in it any more than I already do(M1)as my mileage is pretty crappy already :D:
 

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On 2005-11-25 23:17, weaktruk wrote:
Just wondering? why did'nt you go with an M1 intake?

for me, it was smog reasons. not legal in CA.
 

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Discussion Starter #11
alot of my reasoning was price, but throughout all the research on this that i have done (trust me, i've done a lot) i've learned that you don't really gain a whole lot from an M1. you are really just getting what you've been missing with a blown plenum. i just saw it as another 400 bucks to sink into my engine that i didnt really need. i did the hughes install this weekend and i do notice a bit of gain. i have a small ping but i think thats just because i havent de-carbonized yet or changed my plugs. i hope you guys are right about the no rtv, b/c i didnt use any :D:
 

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Hey Robike, hows that plenum cover holding up?, im glad i found this post as i was just looking online for the M1 and saw the hughes page with that cover, I happy with the performance the truck put out but im getting a hell of a pinging at say going up a incline or giving it a little to pass someone up, poor thing sounds like its gonna rattle apart!, i hope it wouldnt with only 40K on it , but ill bet what happened is when i bought the truck(1 1/2 yrs ago ..25.500miles) i was driving down the road(kinda getting it) and the cat clogged, because i was deep in the throttle the intake gasket( or plenum gasket? went too..lol, anyway the dealership paid for it to be fixed as they gave me a 30 day , but they took the truck to good old dodge and had it fixed, so i wouldnt be surprized now if the plenum gasket is blown, i also could probably use a tune up so ill be doing that as well, but im really curious if this thing does any good, cause the old lady is starting to get a little upset that i keep sinking money into all the toys..lmao, i tried to confort her but since i have 17k in my mustang,10k i just put out for a boat, and plenty of money already in the truck..i dont think she was listening ..hahaha, plus im thinking if i can do this and fix the problem then that will save money for more goodies for the truck.. :D:
 

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oh yeah as far as that gasket goes, from what you are decribing it sounds like what the ford f250-f350 use for trans pan gaskets, No you dont need any sealer those gaskets are great, just tighten it down good to spec and it will hold just fine.. hope that helps..
 

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Discussion Starter #14
so far, so good. i didnt use any sealer on the plenum pan and it seems to be holding up great. i also recommend a crapload of combustion chamber cleaner from the dealership. after the repair i still pinged b/c of the carbon deposits. two cans later and an oil change, all is good... highly recommend hughes.
 

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what manifold is this?

http://store.summitracing.com/default.asp?Ntt=manifold&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp

if no work then part number DCC-5007398AB
 

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thats the M1, but you will also need the sugested parts that it recomends, and probably a few other minor things, the hughes kit is 84.00 for the block off and 40 for the rest and no modifying of stuff like air hoses, wires etc. since you are still using the stock manifold, just fixing what dodge F'ed up in the 1st place
 

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On 2005-12-08 16:25, robike wrote:
so far, so good. i didnt use any sealer on the plenum pan and it seems to be holding up great. i also recommend a crapload of combustion chamber cleaner from the dealership. after the repair i still pinged b/c of the carbon deposits. two cans later and an oil change, all is good... highly recommend hughes.



Sweet, ill be ordering one soon, now ill just have to figure out HOW to get the truck back into the garage..lol, guess ill be taking the roll bar out and flaten the tires..might work..haha
 

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I did one last yr on a Durago.. Holding up great, bottom of the intake is dry as a bone.
 

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Discussion Starter #19
just do all the stuff that hughes recommends. like replacing the manifold bolts that are supposed to be replaced anyway.
 

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I too have the Hughes. I did not go with the M1 when I did my rebuild for 2 reasons. After talking with KRC perf., they suggested I NOT get it because I wanted more low end torque. Marty said a M1 with the cam I have will rob some low end. (exactly opposite of what I wanted) So, when I had my heads ported, they cleaned up the stockerintake too. That ... and price. The porting was free, and the gasket was $100. All was done in July, and it runs strong now. Just my .02
 
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