T O P I C R E V I E W
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ALLEYEZONMYCOBRA
Member # 5068
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posted
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?
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AJBlackGT
Member # 3936
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posted
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.
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ALLEYEZONMYCOBRA
Member # 5068
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posted
MY HEADS ARE STOCK..SO WHICH WOULD THEY BE? ANY HORSE POWER GAIN?
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Quick 88LX
Member # 1950
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posted
I assume you have a cobra but not sure. What year and type of car do you have?
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HungryHippo
Member # 537
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posted
you want pedestal mount. as for gain, not much, but they're nice to have
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ALLEYEZONMYCOBRA
Member # 5068
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posted
nah an 89 gt. i wish i did though!!hahah lol im just curious but theres no horse power gain?
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HungryHippo
Member # 537
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posted
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
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ALLEYEZONMYCOBRA
Member # 5068
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posted
thats cool, thats what i want too. but what about 1.6's they feel the same?
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Cstang50
Member # 4925
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posted
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 ]
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HungryHippo
Member # 537
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posted
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
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ALLEYEZONMYCOBRA
Member # 5068
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posted
theres no problem with the rockers clearing the valve cover right? its just....take the old ones off and put the new ones on?
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2stangs69-91
Member # 1951
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posted
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.
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89point
Member # 5412
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posted
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
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ALLEYEZONMYCOBRA
Member # 5068
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posted
i know they have to be torqued but i dont know to what specs..id call trick flow tech line and ask some questions..
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AJBlackGT
Member # 3936
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posted
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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