I just got a zz9 cam and was wondering what to do with my vette heads off of a 89 at this point they are stock so any suggestions would be greatly appreciated

 

Buy matching valve springs and have the spring seats machined to accept them.Also........

1. 3 or 5 angle valve job (cheap)

2. Have them decked to a "true" 58cc (cheap)

3. Pocket port them (pricey)

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92Z28
89GTA

 

tpis sells drop in springs no machining required for the l98's bowl work helps those heads a lot as well as the valve job that was mentioned you send them to be extrude honed while you're at it

 

thans guys a friend told me to send the heads to tpis and have them do the work buy I have been seeing plenty of nightmare stories are there any good companies that can do it and how much do you guys think it may cost to do the works I might as well right

 

www.cncheads.com . These guys are awesome. I live just a few miles from them. Most magazines located down here building engines use them. They are a little expensive though but worth it.

Jeff

 

I didn't know they DID 5 angle valve seats?

 

If you are in NY, call Cartek and have them port them for you. They know TPI stuff.

http://www.cartek.net

Port work should be around $600-$1000 depending on how much air you want.

 

thanks guys I am on long island where is cartech