Is this true?

Are the ZZ4 heads IDENTICAL to the L98 vette heads? What about the EGR... does either have it?

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1989 IROC-Z
350c.i. TPI
rebuilt 700R4 with shift kit
3'' Monza Pacesetter cat back exhaust (minus the muffler)[SOUNDS OF THIS ON MY WEBPAGE]
new dual cats
3.23 Posi rear
hypertech chip
under drive pulleys
adjustable fuel pressure regulator
K&N Air Filters
Excalibur alarm, keyless entry and remote start
new:
struts, shocks, bearings, distributor, cap, rotor, alternator, battery, regulator
245 ZR16 50 Tires, Rotors and brake pads all the way around

Go to my webpage to find out more about it.
You can also see pictures, and hear sounds as well.
http://go.to/iroc-z

AOL IMer: JRShotliff

 

They are the same, just a few revisions through the years. They do not have egr provisions, the vette used to get exhaust from the passenger side exhaust manifold routed via a pipe into the rear of the intake manifold.

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Hybrid Black 5.7L 5 Speed
'95 Competition Yellow Corvette Coupe ZF6

[This message has been edited by blak92! (edited June 20, 2001).]

 

I believe the ZZ4 heads have different valve springs.