question about vortec heads with cam

[onelow84]

I was just wondering if anyone could give me some info. I have a friend giving me a set of fresh vortec heads, the problem is I already bought a cam. I was curious what I need to do to run a .477/.480 cam with these heads. the setup i was getting ready to put together was a 600 dual feed double pump holley, performer rpm intake, comp xe268 cam with matching springs  a set of stock 1.94 heads (just old smog heads) flat top pistons and a set of 1 5/8 headers. will i be able to keep the headers also? any help is appreciated!

[VileZambonie]

You should be fine

[Fairlane514]

As long as the valve springs can handle that lift, which they should, you should be fine.............just like VileZambonie said.

[DustyRusty]

You may already know it but you will need a new intake manifold for those Vortec heads.  You can't use your Performer intake that was for your old smog heads because the bolt pattern isn't the same.

[onelow84]

thanks for the help guys, I knew I would need a new intake but I wasnt sure if the heads would be good with the lift of my cam... anyone know if I can still use the springs I bought for the old style heads with the vortecs?

[HAULIN IT]

Not unless the spring pockets have been increased in diameter (which is a fairly common procedure). The Vortec uses a smaller diameter spring. Lorne