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Post by minimandan1 on Feb 20, 2008 1:31:39 GMT -5
I was looking at some awsome ford racing valve cover but noticed that they were not "tall" covers that I need to clear the roller rockers and guideplates. Is there anyway around this if I really like the cover? Could I stack three or four gaskets to make up for the hetight or is this a no no?
-Thanks, Daniel
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zombie
Junior Member
Posts: 58
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Post by zombie on Feb 20, 2008 9:02:45 GMT -5
I would not stack gaskets unless you want oil leaking all over the place.
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Post by ca on Feb 20, 2008 11:07:31 GMT -5
yep, what zombie said is true!
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Post by Joeyman on Feb 20, 2008 11:09:52 GMT -5
no i wouldn't stack gaskets that's a crazy Idea.
Look around for tall valve covers they are out there. I'm running tall valve covers on my motor.
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Post by Meteorgirl on Feb 20, 2008 15:09:09 GMT -5
I am running stacked gaskets with no problem, HOWEVER, they are not just regular gaskets. They are the special extra thick Fel-Pro racing ones with the steel sandwich dore. One set of those and a regular quality set sits as high as 4 reg gaskets. They don't leak BUT those fel-Pro's are UBER expensive unless you have a connection . You can always buy valve cover spacers from a place like Summit but they are 100's of dollars. Have you checked to see if a stock set of pent roof 302 covers might fit? If they do, chroming them wouldn't be expensive. Milodon lists "Tall" covers but I can't see where they show the height, Ford Racing has a set of Tall covers listed as 4" tall. Those would work. Just over a 100.0 from Summit. Many options.
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Post by w2zero on Feb 20, 2008 16:01:00 GMT -5
Yeah, keep looking, there are tall covers in just about every style. There is a vendor in California that sells the spacers for 45 bucks. My gaskets are steel, with a neoprene o-ring on the inside. Thirty bucks and the last set I'll have to buy.
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Post by minimandan1 on Feb 20, 2008 23:48:00 GMT -5
W2, would you happen to know what outfit it is here in Cali that sells them....they are very expensive at summit.
Somethin dawned on me.....when installing studs for roller rocker, do you just drill and tap the stud bosses, or is it customary to machine the bosses down before drilling and tapping? Will a stock size valve conver fit stud girdles?
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Post by ca on Feb 21, 2008 0:58:52 GMT -5
ebay Item number: 120223623007 Item number: 150216240649
it would be way toooooo easy to make a set rather than spend too much buyin them
edit= not enough "o"s = too much ;D
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Post by Meteorgirl on Feb 21, 2008 9:55:05 GMT -5
Hey Dan, If you don't mind I'll give you my 2 cents. It is standard op to cut the stud bosses at least the thickness of the guide plates, HOWEVER, you don't have to. It will make the stud run a little higher in regards to VC clearance and the rocker will run a little further down the stud but neither one is an issue. We have done them both ways. We have never seen an article that says you absolutly have to do it. Our tunnelrammed 289 has been running screw in studs for years with no cutting and that thing gets shifted at 6000 quite often. If you are running posilocks the extra length is not an issue as the end of the stud ends down inside the threads where the set screw goes. On most aftermarket valve covers it is not the actual cover that contacts the valve train, it is usually just the baffles. A lot of aftermarket covers are available with or without baffles that eat up a good 1/2 inch over the end 2-3 valves. If you run non-baffled covers and you have breathers or a pcv in the holes, you may inhale flying oil unless you rig up a little deflector to keep the oil away. Sometimes just clearancing the baffles themselves are all you need. Worked for me.
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Post by minimandan1 on Feb 21, 2008 15:06:05 GMT -5
I belive my machinist said he is cutting them .400......does this mean the studs will be short enough to sit under a stick cover? How do you clearence the baffles without removing them or taking away all their effectiveness?
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Post by johnc118 on Feb 21, 2008 15:17:11 GMT -5
I ptu GT-40P hed on my 260, 1.6 roller rockers , I did have to knock out the baffle in the vavle covers. The small block head dont have to have the bosses cut down, theres not enough at 40th. to interfer with anything running guide plates.
I dont think you are going to clearence the baffles without taking them out, the baffle only serves to keep oil from splashing out if there is not a breather cap in place.
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Post by Meteorgirl on Feb 21, 2008 16:18:43 GMT -5
As I said, it's not the stud that hits in most cases, it's the posi-locks as they sit up anywhere from 3/16 to as much as a 1/2 inch PAST the ends of the studs. It all depends on the brand of stud & posi-lock. The studs come in at least 3 different lengths and the posi's in at least 2. If you haven't purchased them yet, the lengths are usually listed either online or in a paper catalogue. On my latest heads, I chose the shorter studs, but I already had the longer poly locks. They hit the baffles so we marked where they hit, heated the spot on the baffle with a propane torch and dimpled it with a ball peen hammer in the 3 spots they touched. If I had the shorter locks, I wouldn't have had to do that or use 2 gaskets. Being the baffles are on the inside, you can't see a mark on my chrome covers at all. BTW, I do NOT have tall covers, just regular Mr Gasket chrome ones. I'm going to order a tall set and none of this will matter anymore.
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Post by roy on Feb 28, 2008 10:46:43 GMT -5
Tony branada makes a spacer to enable you to use stock or Ford Racing valve covers with roller rockers
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Post by minimandan1 on Mar 4, 2008 1:02:47 GMT -5
Ok so I was looking at some more ford racing covers, and it got me thinking about PCV systems. It seems that I have two options as far as valve covers/PCV systems and I was wondering which one is better. One type, is where only one cover has a hole for a breather cap, and the blow by seems out through the breather cap. The other system would have a hole in each valve cover. One would get a oil breather cap, and the other would get connected to the carburator to use the engine vacume to suck out the blow-by. Would the 2 method be the preferred? Is either nessicarily BAD?
Thanks, Dan
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Post by w2zero on Mar 4, 2008 1:25:02 GMT -5
Use a PCV on your setup unless you like having oil on your valve covers. One vc will have the PCV valve and the other vc has the breather.
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