Cam Shafts
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Joined: Oct 2003
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From: Heart of Dixie
Cam Shafts
I'm thinking about getting new camshafts for my 4.6L, and I'm not too sure where to start. I hear that in order to put in higher performance camshafts, you will need a complete aftermarket valvetrain to make everything able to stand up to the new cams. What do yall know about doing this, what would I need to replace along with the cams, how much would this burn my wallet, and how much more power could I be expecting? Any help would really be appreciated.
Drew
Drew
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Joined: Aug 2002
Posts: 12,679
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From: BC, Canada
Is your engine pretty much stock now?
My opinion, and I've never played with cams in a 4.6, is that you would probably be better off with a good exhaust, maybe headers, air intake and a chip or tuner before you go for cams.
With most mild cams in other engines you usually dont have to upgrade the rest of the valve train. With a more radical cam and higher rpm you do though.
I have no idea what cams cost for a 4.6 but I do know that replacing them is a fairly big job.
My opinion, and I've never played with cams in a 4.6, is that you would probably be better off with a good exhaust, maybe headers, air intake and a chip or tuner before you go for cams.
With most mild cams in other engines you usually dont have to upgrade the rest of the valve train. With a more radical cam and higher rpm you do though.
I have no idea what cams cost for a 4.6 but I do know that replacing them is a fairly big job.
New User
Joined: Jul 2004
Posts: 15
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From: Casselberry and Melbourne
i agree with Racerguy, withouth doing at least the inake and exhaust upgrades,hotter cams would be pointless! on the milder cams, you only have to change the cams. A pair of cams are between $500-$700 depending on the
manufacture, thats just for the cams alone (no labor). if you go with a radical enough profile on the cams then you will need the cams and cam kit. The kit has springs and retainers only and go for $200-$400, also depending on manufacture.I personally have a cat back exhaust, headers,a cold air intake and a the computer has been reprogammed and I have plenty of power.
The reason I know how much the cams and kits are is I just purchased a set
for the 5.4 stroker motor i'm building goingfrom the factory 326 cid to 361cid
so i needed to install larger cams, otherwise I would have spent the money elsewere on the truck
manufacture, thats just for the cams alone (no labor). if you go with a radical enough profile on the cams then you will need the cams and cam kit. The kit has springs and retainers only and go for $200-$400, also depending on manufacture.I personally have a cat back exhaust, headers,a cold air intake and a the computer has been reprogammed and I have plenty of power.
The reason I know how much the cams and kits are is I just purchased a set
for the 5.4 stroker motor i'm building goingfrom the factory 326 cid to 361cid
so i needed to install larger cams, otherwise I would have spent the money elsewere on the truck
Last edited by rtjohnson1964; Sep 14, 2004 at 05:56 AM.
