hi all , ived read some info about those cam but im esitated witch one should i get for my car . ill leave the l98 iron heads with the needed modification to get at least .550 inch of lift ... and i just want to know your opinion about those cams witch one his better on a 350 tpi. thanks

 

http://temp.corvetteforum.net/c4/vader86/cam.html

The ZZ4 should work well and require much less modification and adjustment.


If you're going to do some head porting and other cylinder head modifications to allow and take advantage of higher lifts and a higher power band, along with custom tuning, then the hotcam should be better.

 

its obvious you know your stuff. i put your chart on my permanent cam list. its great.
i have someone trying to sell me a cam that is supposed to be 191/196 418/430 111 and is calling it an lt1 lt4.
that is really mild - and i cant find it on any chart. ever heard of it?
thanks.

 

" 191/196 418/430 " looks close to the B-bODY lt1 cam, but I would have to look it up to be sure


If staying a LTR I would be more apt to suggest the ZZ4

 

Thanks, but it's not MY chart or list. I just refer to it often.
That cam doesn't ring a bell but it looks like typical stock GM for a 350.

 

I think that tiny cam is the L31 cam

 

With stock heads, I'd stick to the ZZ4 camshaft. You'll still need to get new springs, retainers, and valve stem seals (Manley parts, of course ) but the stock heads dont flow well enough to work with the hot cam.

 

If you have a L98 then i cant see the point in all the work involved to just swapover to a ZZ4 cam.
Sure its an improvement, but not much of one, especially considering the expense and the labour involved.

Much more worthwhile to save for a better set of heads and then
it would be worth the effort, (with a larger cam of course)

 

zz9 cam