This is topic whats the difference between pedistal & stud mount roller rockers in forum Tech Talk at Northern California Ford Owners .
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Posted by ALLEYEZONMYCOBRA (Member # 5068) on
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whats the difference between the two roller rockers, and how to i know whats the difference?
are they supposed to give you HP or what?
Posted by AJBlackGT (Member # 3936) on
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Stud mounts need to be used with stud mount heads that have a stud screwed in that the rocker sits on. Pedestal rockers are bolted to the head with a bolt and adjusted with shims rather than a poly lock like the stud mounts. Shouldn't be any hp difference between the two, stud mounts are just easier to adjust and stronger.
Posted by ALLEYEZONMYCOBRA (Member # 5068) on
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MY HEADS ARE STOCK..SO WHICH WOULD THEY BE? ANY HORSE POWER GAIN?
Posted by Quick 88LX (Member # 1950) on
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I assume you have a cobra but not sure. What year and type of car do you have?
Posted by HungryHippo (Member # 537) on
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you want pedestal mount. as for gain, not much, but they're nice to have
Posted by ALLEYEZONMYCOBRA (Member # 5068) on
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nah an 89 gt. i wish i did though!!hahah lol
im just curious but theres no horse power gain?
Posted by HungryHippo (Member # 537) on
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if you go from stock to 1.7 you'll gain a few hp. they are a good mod though, you can feel the engine running smoother in the upper rpms
Posted by ALLEYEZONMYCOBRA (Member # 5068) on
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thats cool, thats what i want too. but what about 1.6's they feel the same?
Posted by Cstang50 (Member # 4925) on
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if I were u I would go with the 1.6 because if u plan on getting a cam latter u might run into PV clearance problems with the 1.7
[ April 27, 2005, 09:03 AM: Message edited by: Cstang50 ]
Posted by HungryHippo (Member # 537) on
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with a stock cam, the 1.7's would make a little more power, but yeah. if you plan on an aftermarket cam go for the 1.6's. but then again, you have to plan ahead on what kind of cam or heads you'll be getting since some cams work better with 1.7's and some heads are stud mount
Posted by ALLEYEZONMYCOBRA (Member # 5068) on
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theres no problem with the rockers clearing the valve cover right? its just....take the old ones off and put the new ones on?
Posted by 2stangs69-91 (Member # 1951) on
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with the roller rockers you will have to remove the oil baffle(on the inside) on your passanger side valve cover were the oil fill is. it isn't any big deal. There are aftermarket cams ground for 1.7 rockers.
Posted by 89point (Member # 5412) on
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i have some 1.7's im about to put on my trick flow heads do you have to torque them down any certain way if so and do you have to gap them or anything like that thanks,nick
Posted by ALLEYEZONMYCOBRA (Member # 5068) on
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i know they have to be torqued but i dont know to what specs..id call trick flow tech line and ask some questions..
Posted by AJBlackGT (Member # 3936) on
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quote:
Originally posted by 89point:
i have some 1.7's im about to put on my trick flow heads do you have to torque them down any certain way if so and do you have to gap them or anything like that thanks,nick
If they're stud mount you dont torque them. You set them to zero lash, then half a turn past, and then lock them down. Make sure the cam is not on the lobe for the lifter you are adjusting.
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