Cam lift .341 Int .357 Exh.
Valve lift .490 Int. .512 Exh.
Adv. Dur 325 Int 332 Exh.

.050 Dur 262 Int. 273 Exh
SAE Dur 309 Int 318 Exh

Those are all of the specs, can someone please tell me when this cam is going to start making power, I know it is a pretty high rpm cam. Also can I use roller rockers on this solid lifter cam? Thanks!

[This message has been edited by brodyscamaro (edited June 17, 2001).]

 

who grinds that cam? It has some very strange .050 numbers for the amount of lift. If your talking a 350 and the cam has an LSA 108 or less, it will not make good power until about 4000+. Probably closer to 4500.

Comps cams that are 265-270 range list a powerband of 4200-7200 for a 350. They also have lift in the .56 range. You should aways use a roller rocker with anything more than about .5 lift imo.

 

I don't know who makes the cam right now, but I will find out by the end of the week.

 

I need some information here, please

 

That looks a little like the old "743" racing cam. IRRC it was designed in the early 70s for use on long oval tracks and road courses, 1½ miles or longer, in NASCAR and Trans Am type applications. It has long since been bypassed by far superior designs, especially since a major design considertaion was for it to be as much cam as you could jam under the valve springs of the day and expect it to go 500 miles.

It will start making power somewhere above 4000 RPM, pull good tp near 8000 RPM, and will not idle much below 1500 RPM.

You cannot use roller lifters on a flat tappet cam.

If you want a cam with that much duration, you can (and should) get a solid roller instead, with about .150" more lift. If you want a cam with that little lift, get one like a Comp XE274H. That's just not a very good cam for any kind of a modern car.

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