cam?

[bitchin85]

im starting to build up my 350. it has 305 heads so i have been told. they are going to be swapped out for vortec heads. what is the biggest cam i can run in an 83 350 truck motor? thanks

[dammitmitchell]

well automatic or manual?
if auto you can run a pretty dang big cam, but then you'll have to get a stall converter..

but with a manual (like i ahve you can run a pretty mean thumper without having to spend the extra cash...

[bitchin85]

its an auto. turbo 350. im not looking to build a 10 second truck i just want it to sound really mean.

[project_77]

a couple of things to note with cams,

1. bigger isn't always better

2. the bigger the cam, the less driveablity you have in lower rpms

3. the bigger the cam, the more head work you'll need. such as screw-in studs/guide plates/etc.

i installed a lunati 60103 in my 350. good lope, plenty quick and it is drivable. is it a 10sec truck, no.

be realistic, a 10sec truck is going to take plenty of motor, a cam that has an operating range of 3500-8000 rpms.

[bitchin85]

project77, how much was your cam? is it flat tapped?

[project_77]

Originally Posted by *****in85

project77, how much was your cam? is it flat tapped?

the cam is about $130ish from Summit/Jegs. i didn't opt to get the lunati cam/lifter kit because i felt they wanted to much for lifters. yes, it is a regular hydraulic flat tappet.

post edited.

[Damien]

Stock vortec heads? Without upgrading springs your looking at max lift of .450".
I would call Comp Cams. They will take all your info, and make recomendations.