rockers for stock heads

[92GTpony]

What size rockers and what ratio would be good for stock heads that have new valve spings with a lift to .600.

I was looking at the Harland sharp 1.6 with 3/8 stud...is this the right size?

Thanks

 

[92GTpony]

help!!! want to order tonight on summit

 

[RYC CUKR]

With stock heads you won't be able to use stud mount rockers unless they heads have been machined for them. The stock heads are set up for pedestal mount rockers. Stock ratio is 1.6 if I am not mistaken. I have a set of 1.6 scorpion pedestal mount(bolt down) roller rockers. Lots of guys also use the Crane bolt down 1.7s

The bolt used for pedestal mount rockers is a 5/16" bolt

 

[fidstang]

There are 1.6:1 , 1.7:1 and 1.72:1 ratios and it all depends on the cam you have. Stock heads don't flow much after .550 lift, hell they don't flow much peroid. But, first look at what cam, duration, lift and then decide what rockers will suite your needs. Make sure they are pedestal like RYC CUKR said.

 

[92GTpony]

thanks....

Help this noob out..will this work...1.6 ratio, 7/16" stud

 

[fidstang]

http://www.jegs.com/webapp/wcs/stor...goryId=16155&parentCategoryId=10231&langId=-1

Copy this then paste it in the address bar. You need to be looking at the pedestal mount rockers. Unless you have had machine work to mount stud rockers. I would recomend part number 778-66879.
Hope it helps.

 

[92GTpony]

Thanks a million.....

 

[fidstang]

Just remember to check the valve cover by the oil baffle. It may require trimming to clear the rocker near it.