yes another cam question

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Apr 9, 2009 | 06:52 AM

#16

AL SS590 M6

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Joined: Jul 1998

Posts: 6,247

From: Charlotte,MI USA

Quote:

Originally Posted by Chrome383Z

It's not a concern. STOCK guides are hard as hell, they aren't going to wear. Now, if you go to an aftermarket head with bronze valve guides then you can start to see a problem (hence the recommendation to run HS rockers or equiv).

For a stock headed (or 243) motor, that article is BS.

Right on the money. I just got a chance to read the article and it was written by someone at Trick Flow.
They said that the big problem is with heads that have bronze guides. But if you look at the computer illistrations of how the rocker comes up on it's tip after about .550 an presses the valve down with just the tip edge after that it might get you to thinking.