Quote:
Originally Posted by RodKnock
My cam is very much like Phil's (245/252, .631/.650 lift), popular middle of the road cam for a 482. I've always maintained that it's just about perfect for me, but I've always thought maybe just a touch more would have been even better.
The cam chosen for this 496 project should be nearing the radical side of the scale with almost .800 lift. What is the intended use of this engine and Cobra?
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Heads help a lot, Rod. A higher flowing head makes it easier for the cam to work. So if you have an existing setup, then add head flow (better flow/velocity), the engine will generally peak a little higher. May be an option for you down the road.
Your cam and Phil's cams are pretty moderate, I use those specs quite a bit for hydraulic roller 482's with CNC'd Edelbrock heads, and they generally give a 5500-6000 rpm hp peak. Should be very streetable. I did a 487 with basically stock performing Edelbrocks, used a 244/248 @ .050" cam with .620-ish lift on a 112 LSA, and the customer was very happy....had more than enough vacuum to run power brakes, etc.
The cam for this engine is .775" gross lift. You lose about .020" of that to lash, so you end up at about .750" net lift, which will work well with the cylinder heads.
The engine is going in a Cobra designed for weekend fun. Customer is very well acquainted with higher revving, higher horsepower engines, and he wanted to up the ante over his existing mill.