Thread: Roller rockers

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when it comes to chevy's he definately is the man.... when it comes to fords... he refuses to give positive comments

well ya can't blame him for his taste..........

i have had to work on fords hey i needed the money

just like i've had to work an jags, needed the money.... but i made sure the customer understood, theres no such thing as a warranty on any work done on older jaguars

is there enough money to work on a old jag? i work on one had a chevy V8 in it made headers for it

i did a tune up/ oil change / tires / allignment on one that had the factory motor and it didn't break down the whole time i was working on it.... it only had 12,000 miles on it.... if you dont count the tow trucks odometer too

they said you needed two jags one to drive while the other one was in the shop or just one chevy

Originally Posted by pat mccarthy

dave do not be so hard on your self hell i will do that for free just kidding you know your my best ford friend come to think of it well ????anyways your one of the few i will talk to

GEE, THANKS PAT!!!!! (I think???)

ok just trying to help dave

Hi jimmy,
basically, your screw-in studs are for when you want to use strong valve springs. The springs can be so hard they actually pull out the normal press-in studs, esp with 1.6s. I haven't heard of normal studs coming out in a mild street motor.
Guide-plates were invented for use with aluminum heads (at least that's what I heard), so the steel pushrods don't eat the softer alum. Many people put them in engines to minimize wear and it keeps the pushrods straight and lines up the rockers nicely. I wouldn't use either screw-in studs or guide plates in anything under about 300 horses if it costs me money to have them put in. Depending slightly on the rev-range you're going to work in, higher revs might warrant the screw-in studs. I've heard that 1.6s on the exhaust free up a bit of torque in the low end, combined with headers in any case they're a step towards new tires more often
I wouldn't think twice if it was a mild rebuild, I would stay 1.5/1.5, stay press-in, go without guide plates and invest my money in intake/cam/exhaust.
Wish your wife a lot of fun with her "surprise" ,
Max

i personally have run into studs pulling out on mild motors.... its usually with old heads with even just a mild cam, specially with stock rockers though, because the slot in the rocker was designed for a standard lift cam, add a little extra lift and the end of the slot pushes against the stud in an upward motion which slowly pulls it out

I was assuming they don't pull out if nothing else is wrong. Of course a too short slot can pull them out and a cracked tower can be the cause of one becoming loose, too. But I've never seen one being pulld out on a healthy head with near stock components.
Max