98 ls1 heads vs 99+ ls1 heads
#6
Originally Posted by ss427ci
I have a 98 and am curious myself.
I bought the Vortek truck heads. I had also read this. Just don't forget that 99+ heads have a different valve cover bolt pattern. After buying 99+ valve covers and coil brackets from a dealer and shims from Thunder Racing to clear my roller rockers, I had $600.00 invested in valve covers.
#7
TECH Junkie
iTrader: (2)
Originally Posted by transam1998
I bought the Vortek truck heads. I had also read this. Just don't forget that 99+ heads have a different valve cover bolt pattern. After buying 99+ valve covers and coil brackets from a dealer and shims from Thunder Racing to clear my roller rockers, I had $600.00 invested in valve covers.