Need Camshaft Help
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Joined: Jun 2005
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Need Camshaft Help
I need to know which one of these would be better for a daily driver with a 390, and a two BBL carb, please tell me which one of these I should buy, or please reccomend something that would be better for the same price. thanks oh and btw everything is stock in the engine.They are both about 90 bucks off ebay, brand new with lifters.
The first cam, .484/.510 valve lift
204/214 duration at .050"
270/280 advertised duration
112 lobe separation
The second cam,
528/528 valve lift
284/284 advertised duration
218/218 duration @.050"
110 degree lobe separation
The first cam, .484/.510 valve lift
204/214 duration at .050"
270/280 advertised duration
112 lobe separation
The second cam,
528/528 valve lift
284/284 advertised duration
218/218 duration @.050"
110 degree lobe separation
Last edited by 1972 SportCustom; Jul 30, 2005 at 09:34 PM.
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Well...
The first looks better for a stock compression 390. Really though, for a 2 barrel engine with everything else stock, I think both of those two are a bit too radical. You'll probably have better results in getting a set of headers and a 4 barrel intake and carb first. If you're set on getting a cam, look at the Crane 343901. That will work with a stock motor nicely, as well as support any future upgrades. It will cost a bit more though.
The first looks better for a stock compression 390. Really though, for a 2 barrel engine with everything else stock, I think both of those two are a bit too radical. You'll probably have better results in getting a set of headers and a 4 barrel intake and carb first. If you're set on getting a cam, look at the Crane 343901. That will work with a stock motor nicely, as well as support any future upgrades. It will cost a bit more though.
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would the first be ok to run in my truck, or no, the cam is now the only thing holding me back and i have a really really tight budget, 4bbl intake and carb is out of the question, same with headers.
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
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From: Smith Mountain Lake, VA
I'll Have too agree with Kurt.. I think before I spent the money on a cam, I would at least go to a Junkyard 4V intake, and a 4V carb, before I would tear the motor apart to suff in a new cam... JMO....
Russ
Russ
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Joined: Sep 2004
Posts: 863
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From: Grain Valley Mo.
I rebuilt a 302 on a budget once and made the mistake of installing a bigger cam. I know it's hard to resist because you can buy a budget HiPo cam for about the same price as a stock cam. But with a 2 barrel and stock exhaust they just don't work. If a 4V and headers aren't in the budget I would buy a stock cam. JMO.
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XFM....learned the hard way!!!
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XFM....learned the hard way!!!
Post Fiend
Joined: Jan 2003
Posts: 8,600
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From: Iowa
According to the specs I have, the stock FE cam is a 256/266 degree dual pattern, .427" / .431" lift. So actually, the first listed cam is quite a bit bigger than the stock cam.
If you're on a budget, go to the junkyard. Get a 4 barrel intake and the carburetor sitting on top of it. Rebuild the carburetor, and stick it on. If you're lucky, you'll find a truck with a set of headers that aren't completely rotted out.
If you're on a budget, go to the junkyard. Get a 4 barrel intake and the carburetor sitting on top of it. Rebuild the carburetor, and stick it on. If you're lucky, you'll find a truck with a set of headers that aren't completely rotted out.
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Lead Driver
Joined: Apr 2001
Posts: 6,175
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From: Texas
thanks kurt, I didn't realize how mild the stock cam was! Only .431" lift...I really thought it was closer to .475"
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well the engine is already completely apart, and im not about to go to the junkyard to get a crappy intake manifold, get it tanked, paint, rebuild another carb, i guess ill just have to find a stock one.
Post Fiend
Joined: Jan 2003
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From: Iowa
Well, if you're expecting to get something for nothing, it's not going to happen. You can either:
1. Waste your $90 on a cam that's not going to do anything due to your restrictive exhaust and dinky carburetor, or
2. Spend your $90 on a intake, carb rebuild kit, couple cans of brake cleaner (you dont need to have it tanked...), and a blue spray bomb, and have somthing that WILL make some difference.
The cam is definately NOT what is holding you back right now.
1. Waste your $90 on a cam that's not going to do anything due to your restrictive exhaust and dinky carburetor, or
2. Spend your $90 on a intake, carb rebuild kit, couple cans of brake cleaner (you dont need to have it tanked...), and a blue spray bomb, and have somthing that WILL make some difference.
The cam is definately NOT what is holding you back right now.