Recommendation for Vortec Heads?

[pontiacgp]

From Edelbrock for installation of their intake on vortec heads...

http://www.edelbrock.com/automotive_new ... /71116.pdf

ƒ SPECIAL NOTE: This intake manifold is primarily intended for use with Vortec heads on pre-Vortec blocks. Standard
engine blocks route thermostat bypass water from the block directly to the water pump through the passenger side
water pump mounting flange. If the manifold is used on a 1996 and later Vortec engine that does not have the
in-block bypass passage, you must route a thermostat bypass hose from the water bypass port on the front of
the manifold to the 5/8” hose nipple on the passenger side of the Vortec water pump. Use a 3/8” pipe to 5/8”
hose nipple fitting, and a 7” length of 5/8” hose to accomplish this. If your engine block has the thermostat bypass
passage, use the 3/8” NPT plug supplied in the kit to plug the bypass port in the front of the intake manifold.

 

[jrm81bu]

Then by the sounds of that, you don't need the bypass when used on older blocks. Good to know cause I haven't used one and have had no problems. Guesss that's why.

 

[SafariWagon]

Anymore head gasket suggestions?

 

[pontiacgp]

I used felpro on mine with no issues. For the valve springs there are ZZ4 springs usually on sale cause the guys upgrade them. I have the ZZ4 springs and the roller cam that lifts 510 with no mods to the vortec heads, I got mine from a guy who had run the engine just a few hours