Posted by PARTSMASTER on January 18, 1999 at 01:25:54:
In Reply to: Re: Vortec Head Valve springs posted by Tony Kiszka on January 14, 1999 at 21:50:07:
: :
: : : Does anyone know what max cam lift you use with the stock springs on the vortec heads?
: : .480 " lift. Will spring bind at .500 "
: Do you know what size springs the heads can take? Second I plan to machine, redrill and tap the heads to fit the ZZ4 intake manifold. Any idea if I would need to plug the exsisting holes?
1.241" You can machine spring pockets to a larger size, Do you have to run the ZZ-4 intake. I would by a 2116 or a 7116 edelbrock intake. The ZZ4- ports wont match up to the vortec heads.