ktm8125

i was wondering what the biggest cam i could do and do the stock heads pushrods and valve springs

john shea

I'm not a mechanic but I believe new valve springs are mandatory.
I'm sure someone will chime in with a cam and spring combo for you.

Camaroking1996

Any cam bigger than stock will require you to use new springs.

VandykeT/A

You need springs and pushrods with any cam.

Zmg00camaross

iTrader: (11)

^^^ That and Trex cam I would say is the largest off the self cam you can buy.

1gt2nv

iTrader: (5)

I would also change the fuel injectors, timing chain and oil pump. And do the trunion upgrade to the rockers while your in there. But Bigger isn't always better.

1nasty86

iTrader: (63)

trex or polluter

Petersen

I have the ms4 with stock 853 heads. On my 00 trans am can't complain with the gain

Thumper28

iTrader: (4)

I haven't come across a person yet who will say that you should keep your stock springs with a new cam. I just posted this on a different thread but it might help you out:

I am putting a new cam in a rebuild right now and I found I have found 2 budget friendly options, one from Lunati and one from Trick Flow. Both are Pacaloy beehives (I'm pretty sure they are the same spring) and I can get either for $129. I know there are better springs out there but these are recommended with the 2 cams that I am trying to decide between and I can still reuse my stock retainers.

ktm8125

Ok does anyone know wat the valve clearance it for the stock heads?

badazz81z28

iTrader: (6)

I would imagine alot! The stock duration is barely 200 and lift at .500

HoLLo

iTrader: (17)

Valve springs are the only MANDATORY item. I'm running stock pushrods on my Patriot cam, over 20k miles on cam, 110k miles on motor. No issues.

redtan

iTrader: (5)

Megadeath, will work great in your setup.

b16acrx1988

https://ls1tech.com/forums/generatio...cam-guide.html

garygnu

you will also need a high rpm converter and a good tuner.I would also install comp trunnion bearings if you use the stock rockers.stock push rods and stock springs only work with stock gm cams.consider a gm ASA cam.

Cstone812

iTrader: (5)

Just throw in the ms4...you dont need springs or rods or anything just the cam it will be fine

torkls1

iTrader: (15)

^That's funny, but you should have said you were kidding... someone might actually try to do that. Haha.

smg267

iTrader: (23)

I'm with you I have been running a .650 lift cam for 3 years over 25k miles stock everything. Push rods and springs are a scam to inflate the cost of a "cam swap". There is a reason they call it a cam swap!!