Why? (Cam thread)

J-(Chicago) · October 24th, 2008, 11:53 PM

Why can't you run stock springs and rockers with this cam?

http://www.compcams.com/Cam_Specs/Ca...csid=1163&sb=2

My buddy had one of these laying on the shelf, so I slipped it into an old block to check it out. I held the pushrods and spun them while tightening the rockers down and the pushrods don't spin once tightened. I don't see why this cam would require screw in studs and double sprung springs like they say.

88 coupe · October 25th, 2008, 03:05 AM

Less lift and duration than many stock Olds cams. Olds valvetrain will work just fine.

The advertising is probably geared toward the novices who are educated by car magazines, the Internet, and car shows.

Norm

J-(Chicago) · October 25th, 2008, 07:36 AM

Just as I suspected.
The second opinion is parallel to my own.

Run to Rund · October 25th, 2008, 10:22 AM

I would recommend new valve springs that are intended for the cam. Machined split locks would be a good idea, too (for any cam, especially with more valve spring tension).

October 24th, 2008, 11:53 PM	#1 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 2,696	Why? (Cam thread) Why can't you run stock springs and rockers with this cam? http://www.compcams.com/Cam_Specs/Ca...csid=1163&sb=2 My buddy had one of these laying on the shelf, so I slipped it into an old block to check it out. I held the pushrods and spun them while tightening the rockers down and the pushrods don't spin once tightened. I don't see why this cam would require screw in studs and double sprung springs like they say. __________________ I'd rather have a numbers matching poker hand.

October 25th, 2008, 07:36 AM	#3 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 2,696	Just as I suspected. The second opinion is parallel to my own. __________________ I'd rather have a numbers matching poker hand.

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October 25th, 2008, 10:22 AM	#4 (permalink)
Run to Rund Registered User Join Date: Mar 2008 Posts: 337	I would recommend new valve springs that are intended for the cam. Machined split locks would be a good idea, too (for any cam, especially with more valve spring tension).