This is topic Help me pick a cam! in forum Tech Talk at Northern California Ford Owners .
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Posted by 9cobrasnake9 (Member # 575) on
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I just bought a 306 short block with a comp cams cam with .510 lift. It is a bran new cam but I need to pass smog. I have a stock 93 Cobra camshaft in my garage. I am putting GT-40 cast iron heads, hopefully ported, an Edlebrock intake and a new 600 cfm carb on an 83 Mustang. I want to run a 100 shot of nitrous just for fun. What is the best cam for the job. What are the differences between a stock gt cam and a Cobra. Any help is greatly appreciated. Thanks in advance.P.S. Anyone in Sac do good port jobs on heads?
Pete
Posted by shade-tree (Member # 298) on
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what's the specs on the cam you got now? It may pass smog as is.
Posted by 9cobrasnake9 (Member # 575) on
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All the guy told me was that it had .510 inches of lift, I am going to get on comp cams web site to see which one of there cams fits that.
Posted by 9cobrasnake9 (Member # 575) on
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One cam fit what the guy told me. It was for a block that was originally flat tappet and wanted to switch to a roller setup. Its op range was 2500-5500 and the numbers read like this-281/281 220/220 .512 and 110 of lobe. I am leaning towards just gettin an E cam.
Posted by st5150 (Member # 51) on
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You can do better than an E cam if you go off the shelf. A crane 2030/2031 was designed for GT40 irons, and I'm sure there are even better off the shelf picks for your combo. If porting is going to cost you a few hundred $$$, you're better off just selling the heads and putting your porting money towards a set of new heads. I guess it comes down to..... whats your budget?
Posted by shade-tree (Member # 298) on
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the limited duration of that cam.... sounds to me like it will smog.are you just trying to pass smog, then slap something beefier in there?
so this is a roller converted block? (with the mini base circle cams?)
that limits your cam options... incredibly. But comp cam will have a few.
Posted by 9cobrasnake9 (Member # 575) on
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The cam is a magnum 280h series comp cam. There is 280\230 at .500 inches of lift.I got the heads for free so if I had to pay two hundred to port them, not a big deal. I am on a budget so I will probably just stay with this cam. Can I use stock used Cobra lifters with this cam. Or should I just order up some new ones from crane? I heard you can reuse lifters on roller cams. Thanks for all the advice.
Pete
Posted by shade-tree (Member # 298) on
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stock lifters should be fine.