well i have a 2002 silverado 4.8 and a t/a and was wanting to put a cam and a few extra goodies on as well but my question is what are the pushrod lengths? and i was wanting to run a tsp 233/239 cam i think its a 603/599 lift or close to, and is that over kill for my 4.8

 

That cam is toooo big for a 4.8

John

 

well crap want the most lift and power i can get but what cam would make the best bang for my buck?

 

Tr220?

 

That cam is to big for that 4.8...

 

Holy crap that's too big. Try to go for something around a 216/220. A cam like you picked would be great in a 4.8L to around 8000rpm or so.

 

A TR224 isn't too big for a 4.8. Of course neither is the hotcam with it's 228 exhaust duration, but the TR cams have way more of an agressive lobe. A TR224-114 is what I would do if I had to do it again. I think a 112 LSA is a bit much for a 4.8/auto.

 

From my little research on cams, I don't understand why people want these cams so big for a daily driver truck. I plan on doing a 210/218 in a 6 liter, but then again I rarely go over 3000 rpm.

 

I'd say tr224 at the max; even then it requires a lot of tuning to do. I'd go with something smaller than a 224 though really.

 

tr220