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I have a QUCIK and easy question. What is stock rocker arm specs?

560 Views 2 Replies 3 Participants Last post by  novaderrik, 
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I am wanting to install some roller rocker arms on my 71 Elky w/350. What is the stud size; 3/8" or 7/16"? Also, is it a 1.5 ratio, or 1.6 ratio (stock)?

I am leaning towards the summit brand, simply because they are cheaper. Any pro's or cons about these?
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Stock SBC rocker is 1.5 ratio on a 3/8" stud.
On a stock or mild performance application, installing aftermarket roller rockers of the same ratio will see no HP gains.
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