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Tek
Dodge Dakota
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9/20/2004
17:48:23
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 Subject: Rockers and such...
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Ever since I added my 75 shot of nitrous, v8 throttle body, and a new exhaust, I've been thinking about getting the harlan sharp rockers. My question is, if I get the rockers, should I get different pushrods or lifters since I have the other mod's done also? What's the max hp you guys would suggest running with the stock internals? 96' 3.9L
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gen1dak
Dodge Dakota
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9/20/2004
19:45:37
|  RE: Rockers and such...
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It's not so much the hp, but the rpm that stresses things. The 75 of nitrous is usually okay with cast pistons. I would definitely get better pushrods, especially with the roller rockers to limit flex, since the loads will be greater. Haven't seen anything on the lifters. They hold up well unless you really get radical.
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Greg
Dodge Dakota
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9/21/2004
23:00:51
| RE: Rockers and such...
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The lifters won't hold up with different camshafts other than stock... If your changing out your cam I'de recommend the crower lifters anyday of the week even over the performance lifters for the magnums mainly because my "performance" lifters have pretty much been shot evedently ever since the motor was first fired up... They just can't handle a different cam, but rr's and stock cam are no problem unless you allready have a ticking sound going on that is caused by the lifters...
As far as the pushrods like gen1 said they aren't all that stought... This is probably going to sound a little lousy right now, but I've got a set of the comp cams - heat treated, .083" thick pushrods that I would be more than happy to sale to you for $50 + shipping... I think that's more than reasonable... It's the same set that you get through krcperformance for $100 +, but I found out after I had bought them that my regrind cam required longer pushrods to keep everything in proportion and geometrically correct, so I could not use these and the guys at krc said I couldn't return them at all, so they've just been lying around "in the original pack" collecting dust pretty much... The number on the pushrods and wording are --- 7631 COMPETITION CAMS MAGNUM and I got enough for a V8, so you should have 4 left over or spares incase something just happens to happen to 4 of them... That's means that there are 16 of them all total...
Let me know if you want them so I can get them out of the house and on to their new owner... You can also talk to Sam over at socaldakota and see how much a set of the crowers are, bacause that's what I went with and would recommend them as well, that is if you didn't want the set I've got...
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Tek
Dodge Dakota
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9/22/2004
00:25:48
| RE: Rockers and such...
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the reason I was thinking about the harlandsharp rockers was because they were a direct replacement, I heard the crower rockers require a different valve cover?
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Just Looking
Dodge Dakota
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9/22/2004
01:39:07
| RE: Rockers and such...
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nah
Just take a hammer and a block of wood and knock the baffles in to get the room...
Or
weld in ur own baffles after cutting old ones out...
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tek
Dodge Dakota
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9/22/2004
12:44:23
|  RE: Rockers and such...
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have pictures of that job? I have no idea about baffles or whatever the heck they are...
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Jeremy
Dodge Dakota
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9/22/2004
13:06:45
| RE: Rockers and such...
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The baffles are just thin "plates" of metal that come down from the top of the cover. Simply move them out of the way.
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tek
Dodge Dakota
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9/22/2004
13:13:43
|  RE: Rockers and such...
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alrighty, i think i could take care of that... anyone know where i could get a deal on a cam, lifters, pushrods, and rockers as sort of like a kit or anything...
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Greg
Dodge Dakota
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9/22/2004
13:58:46
| RE: Rockers and such...
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Talk to Sam over at ---
http://www.socaldakota.com
His phone number is listed on the site and I think his email contact is too... He should be able to hook you up with a whole crower kit that is more than capable of handling any kind of stress that you could throw at it...
You could also go to ---
http://www.hughesengines.com
They can hook you up with most kits that they supply, but the cam will be a regrind and will require longer pushrods...
I personally would recommend a mixture of the two and go with the following parts that should complement each other very well and you will notice a deffenate power icrease...
FROM HUGHES
- hughes cam #HER0814AL-V6 (with 1.5 rockers/int .480"/exh .489",,, with 1.6 rockers/int .512"/exh .520")
FROM SOCALDAKOTA
- crower 1.7 rr's, lifters "a must with any kind performance cam and they do out perform or rather outlast the performance lifters from mopar", also custom pushrods "more than likely if anything like mine around 7.050" long"
FROM MOPARTSRACING.COM
- (12) #4452032 cromoly retainers
- (12) .600" lift valve springs
- (16 pieces) valve keepers
Then while you've got your intake off you can port match all of your ports and shave them down to the custom 13" long runner lengths... You may also have to have your head spring seats cut down to get the proper spring height and while you've also got your heads off you could also port match them and maybe have your local machine or engine shop put some extra angles on your valve springs...
If you do go with the cam swap, you will need to put heavier springs, keepers, and locks on anyway, so you might as well go the extra mile and do everything else like the porting to really make it breathe better...
SIDE NOTE --- All you have to do with the baffles to prepare them for the crower rockers is simply do what just looking said and take a 2x4, turn it up edge ways then knock the baffles down to where there is still enough room for oil vapor and actual oil to flow through... You do not want to remove them unless your putting them back in, because all the removal will do is allow oil to flow out of the valve covers into the intake and that's not good... Just make sure to place the valve cover down on some old rags or something soft so it won't dent in the top of the cover or scratch any of the paint off and also make sure to remove your pcv and the other thingy so you don't break them off or cause some other kind of damage... It'll only take roughly 1/2 minutes of knocking and fitting to make sure they clear the rockers and is not hard at all to do...
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hater
Dodge Dakota
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9/22/2004
14:43:50
| RE: Rockers and such...
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You write all that crap.... and you are still a moron and have no idea what any of it means....
cut some extra angles on the valve springs??
hahahha go the fuk home a$$hole
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gen1dak
Dodge Dakota
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9/22/2004
17:54:14
| RE: Rockers and such...
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The stock heads will support 300hp (off the bottle), more if reworked. Push beyond that and you'll likely be running rpms beyond 6 grand, and then holes have a peculiar way of forming in the block. ;-D
Extra angles on the valve springs? Ooooooooo K. Whatever that is.....
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tek
Dodge Dakota
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9/22/2004
20:21:46
| RE: Rockers and such...
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gen1dak, heads as in?
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tek
Dodge Dakota
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9/23/2004
09:41:17
|  RE: Rockers and such...
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do you know if any company makes valve covers that will work with the crower rockers? I might do a engine dress up and the stock black covers aren't the greatest looking...
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daddio
Dodge Dakota
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9/23/2004
10:11:05
| RE: Rockers and such...
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Sam @ socaldakotas sells them ready to go. and you can get them powder coated in assorted colors if you want.
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Greg
Dodge Dakota
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9/23/2004
15:41:58
| RE: Rockers and such...
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I did say valve springs didn't I... I meant put some extra angles on the valves themselves... I know what the he11 I'm talking about, I'm just always in a hurry to type the stuff down and with arthritis and all the fingers have a tendacy to hit whatever keys they want to...
Usually all you need to do is put 1 extra angle on each valve because unless I'm mistaken the exhaust or intake one allready have 3 on them and either the exhaust or intake also allready have 4 on them... So one extra small angle to improve air flow on each will total up to 4 angles on one of the valves and 5 angles "I'm pretty sure the intake" on the other valve...
Oh and deffenate should have been definate, icrease should have been increase... Oh and I'm pretty sure gen1 meant cylinder heads, and daddio is of course right about Sam... He's a great man and always has the best prices like I've said before...
Oh and hater you can read my post and if you have any logical sense about you at all, you should have known exactly what I was talking about or referring to... Oh and I've also done all that I listed above to my own truck only I put 1.6 rockers and the crappy magnum performance lifters on it... That's why I listed otherwise above so the guy could get as much potential possible out of his without any problems... I've also done a heck of a lot more than all of that to it, so I think I know just a little bit about what I'm talking about...
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gen1dak
Dodge Dakota
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9/23/2004
22:09:26
| RE: Rockers and such...
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Yeah, I meant cylinder heads.
Greg, had me a bit confused on that angle thing, but it's easy to get terms mixed up. It happens. Yeah, a good valve job will help.
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