valve spring

Topic: valve spring (Read 756 times) previous topic - next topic

valve spring

November 12, 2008, 10:48:14 PM

hey guys. ive got a question for ya. what is the biggest lift cam i can use with stock valve springs and rocker arms??

valve spring

Reply #1 – November 13, 2008, 04:55:10 PM

The stock cam. Really.

If you change the cam get the proper springs for it. If you don't it will not run right and you'll have some fun valve float issues.....

valve spring

Reply #2 – November 13, 2008, 05:54:51 PM

As big as you want till it hits the pistons.

valve spring

Reply #3 – November 13, 2008, 08:02:38 PM

Depends on a lot of things.

Duration,

Ramp Rate

Cam Timing

valve spring

Reply #4 – November 13, 2008, 08:39:58 PM

i guess i should have been more thorough. i was looking at one of the ford alphabet cams. (stock cam timing btw). i was thinking like an X cam 542 lift, 224 dur at .050. what other cams would be good that will help make a hefty amount of power below 7k rpm. i plan on using a single plane intake, this will be a strip driven car. to the strip on the strip and hopefully back home. i plan on using about a 3-4k stall btw
im going to run it carb'd until i get all my turbo stuff then im going back to efi. reason im going carb'd is cause im getting a ton of stuff for cheep. 302 roller with 10k miles since rebuild. i have heard it run and it sounded really good. long and short tube headers (shorts are bbk equal length), full exhaust from headers back, 600 cfm holley carb, built by an old racing buddy, an AOD trans (mines toast) a c4 trans that im going to rebuild. distributor, msd 6al box, gt40p heads with the cobra 1.72 roller rockers, and a bunch of other stuff.