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roller rocker question

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roller rocker question - 2/3/2006 4:21:17 PM   
SD_LX_5.0

 

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I just wanted to know if I were to go to a 1.7 ratio rocker would I have to change my push rods because of a shorter or longer size difference? and the stock rocker ratio is 1.6 right? thanks a bunch..
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RE: roller rocker question - 2/3/2006 4:34:31 PM   
Mstnggt89


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Yes, the stock ratio is 1.6 and from my experience you do not need different pushrods me and my buddy both used our stock pushrods for our 1.7s and everything seems to run fine just make sure the rocker arms are adjusted correctly.

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RE: roller rocker question - 2/3/2006 5:17:24 PM   
FullAuto

 

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I'm just wanting to clarify the answer was "yes" to stock rocker being 1.6 and "no" to changing pushrods for 1.7. I had to read the answer about 3 times because I thought he was saying "yes" to the first question the guy asked. LOL

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RE: roller rocker question - 2/3/2006 5:19:24 PM   
Black Snake


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Yeah I used to stock pushrods too, adjusting them were a bitch.

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RE: roller rocker question - 2/3/2006 5:47:42 PM   
Mstnggt89


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quote:

ORIGINAL: FullAuto

I'm just wanting to clarify the answer was "yes" to stock rocker being 1.6 and "no" to changing pushrods for 1.7. I had to read the answer about 3 times because I thought he was saying "yes" to the first question the guy asked. LOL


My bad. i thought i wrote it clear enough. oh well.

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RE: roller rocker question - 2/3/2006 6:06:16 PM   
SD_LX_5.0

 

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why is adjusting them so hard? it involves shimming out the gaps and the right torque settings right? which I think is 18-25 ft-lbs for the stock rockers but it may be diff for the rollers.

also what is your guy's opinion on the direct bolt on roller rockers that dont require machining or tapping out of the hole size? (and dont require guide plates as well, I think) are they any good or is it really worth the effort for a mustang thats gonna be a fast (and legal ) street car and occasional track/weekend racer?

thanks alot for the help so far guys!!

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RE: roller rocker question - 2/3/2006 7:01:00 PM   
Black Snake


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Only for stud mounted rockers are the ones that are a bitch. Pedestal ones are easy just torque em down for 18ft/lbs at zero lash.

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RE: roller rocker question - 2/3/2006 9:59:50 PM   
5.0stanger



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I read in Fast fords and Muscle Mustangs to set you roller rockers, you spin the push rod(stock size) and tighten the rocker untill you snug the push rod. Then you tighten the rocker. From this point, if it takes less than one full turn, you are good, if it takes more than one full turn, you have to shim the rocker up untill it takes less then one full turn. Then you torqe the bols to 20-25ft/lbs.

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RE: roller rocker question - 2/3/2006 11:17:03 PM   
philthy89fifty


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you guyz are confusing the sheet out of me. go to cranecams.com they have instructions for any motor.

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RE: roller rocker question - 2/4/2006 5:42:33 PM   
tinman

 

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You always want to do ANY adjusting to zero lash when the lifter is on the base circle of the cam......

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RE: roller rocker question - 5/17/2008 9:51:39 AM   
c67d289

 

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i have a 67 289 stang with stock heads and i put 1.7s on with taller valve covers...works fine, no stud changing or anything

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RE: roller rocker question - 5/17/2008 10:19:21 AM   
AdderMk2

 

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quote:

ORIGINAL: c67d289

i have a 67 289 stang with stock heads and i put 1.7s on with taller valve covers...works fine, no stud changing or anything


HOLY OLD THREAD!!!!!!!!





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RE: roller rocker question - 5/17/2008 3:43:38 PM   
projectresto83


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Looks like someone doesn't pay attention to the dates on the threads

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