Couple questions do i need ls6/918 springs to run this cam on 5.3 or longer pushrods & is 339.00 a good deal it is the lowest i have found.Thank you

 

please help a old man out.I am trying to order what i need and do not wont to call comp and be on hold for ever.iam not planning on turning over 6,ooo rpm so would stock springs work?

 

I would recommend the 918 springs for longevity. I have this cam in my 6L truck and I used the comp pushrods and springs specified in their catalog for the cam. Everything seems to be fine so far but I've put a whole 6 miles on the truck so far, lol. I used stock lifters, retainers, valves, etc.

 

With a 560 lift, I would get the 918's just for extra insurance and longevity. Hell, I got them for my 531 lift. My .02.

 

Yea, I think the stock springs are only good for 13 or 14mm which is about .52-.56. I put 918's in mine and my cam is only 512 525 I think, but not much. I am using the stock pushrods though. Thats a nice cam, I wish I would have gone bigger Maybe next month

 

I agree, with that much lift, I wold go 918's. Some 7.400 hardened pushrods would be fine.

 

I would use late Z06 springs stock push rods and not spin it past 6100

 

I run that exact cam too in my 5.3L. I use 918 springs, titanium retainers (though stock retainers are fine) and Thunder Racing 7.400 hardened pushrods.

 

HOW DOES THE CAM IDLE IN A 5.3. WHATRPM DOES IT PULL TO

 

thanks for the help.iam changing ks sensors as we speak,if i can get past pulling manifold then weekend after next cam is going in.