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Old 11-09-2012, 07:52 PM
ap72 ap72 is offline
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Originally Posted by F-BIRD'88 View Post
The Xe284H-10 is a better cam for your purpose. As far as being a good match to your combo stop
listening to people who no nothing about cams or ported 305 heads.
Don't ask people on the internet how much power you will make. They don;t know.
That what they make dynos and race tracks for.

The 292H magnum is not a bad cam. but....Id rather see you use a better solid lifter cam if you want
to go that big on the cam. It will work a lot better. Don;t be intimidated by street solid lifter cams.
They are not hard ro deal with at all.
Your friend is not the only guy with a cam for sale. You can buy a new cam for $150.
In a hyd the XE284H-10 would have been a good choice.
Yes your ported big valve 305 heads will work very well with it . If you did a decent job on porting them they actually flow pretty good. The only way to know how thye turned out os to run it down the track, stick it on a dyno or flow test the cylinder heads.

You are on your way to a good combo for the street for your vette. Don;t fuggg it all up now.
A Isky Z-27 cam would work very well. #201027. Another cam I like even better for this combo is the Lunati 401A3LUN cam. A nice street solid cam that will run nicer than the comp 292H. You will like it better overall.
good with your ported heads, good wiht the 3/4 shorty headers good with the 3000 stall and 4.11's.

The comp 292H needs a higher stall converter. 3500++.

Thats what I would do if not the Comp XE284H-10 cam. The comp Xe284H-10 cam is the biggest I would go with the 3000 stall converter.

So a hydraulic cam with 244 duration is in the same ballpark as a solid cam with 238 duration? yea right. A comparable hydraulic cam would have about 225 duration which is used with fully ported 305 heads would actually be about right.

So yes, the 401A3LUN cam would be a pretty good match (if the heads are ported)- the 292H cam isn't even close.

BTW, I'm sure F-bird knows this, but for those that don't you can't compare hydraulic and solid cams directly at 0.050" for the fact that solid cams run lash, for your typical .020" lash you need to subtract around 12 degrees to get an equal hydraulic duration- for more lash you subtract more duration for less lash you subtract less.
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