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> Engine build question, 1.3 to 1 ratio rocker arms.
Matty900
post Jul 25 2017, 07:48 PM
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I just got a call from a engine builder talking about rocker arms. I may have misunderstood him but I think he said that the guy that did the cam for him suggested that if we could get a 1.3 to 1 ratio rocker arms we could get more out of the cam. I know enough to know what I don't know any of advicece would be appreciated.
1.7 being built to 1911 with dellorto 45 carbs
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Mark Henry
post Jul 25 2017, 09:39 PM
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Type 4 stock rockers are 1.3:1 (IMG:style_emoticons/default/wink.gif)

Type 1 stock rockers are 1.1:1
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Matty900
post Jul 26 2017, 12:07 AM
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QUOTE(Mark Henry @ Jul 25 2017, 08:39 PM) *

Type 4 stock rockers are 1.3:1 (IMG:style_emoticons/default/wink.gif)

Type 1 stock rockers are 1.1:1

I'm getting nervous about this guy.
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McMark
post Jul 26 2017, 10:09 AM
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QUOTE(Matty900 @ Jul 26 2017, 02:07 AM) *

QUOTE(Mark Henry @ Jul 25 2017, 08:39 PM) *

Type 4 stock rockers are 1.3:1 (IMG:style_emoticons/default/wink.gif)

Type 1 stock rockers are 1.1:1

I'm getting nervous about this guy.

Yes, that's a huge red flag, IMHO.
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