67goatman455

iTrader: (14)

I am asking this question for a friend of mine, but he keeps telling me that he has LS6 heads and an intake that came with his car which is a 98 Z28 A4. He has mentioned that he believes that the car is a B4C, but i haven't done a whole lot of research on them to know what they come with. He has decided he wants to put a cam in the car, and someone i guess told him if he does have LS6 heads then he does not have to worry about buying new valve springs (yes i realize that there is a certain amount of truth to that) depending on how big of a cam he goes with. The heads have a casting of #806 and once i check to make sure, he said that the valve cover's are bolted around the perimeter. thanks for any help.

mvvette97

iTrader: (18)

LS6 head is a 243. The 806 is the stock LS1 head for the 97 and 98 LS1. All the LS6 heads are also center bolt for the valve covers.

Hi-Po

iTrader: (4)

Stock valve springs can barely handle the stock cam. 806 are stock heads for that year as stated above.

67goatman455

iTrader: (14)

thanks guys, i pretty much figured that, just had to check to see