Exact Differences Between 98 and 99
12-07-2010, 09:21 AM
#1
Launching!
Thread Starter
Join Date: Feb 2010
Location: Twin Falls Idaho
Posts: 264
Likes: 0
Received 0 Likes
on
0 Posts
Exact Differences Between 98 and 99 Ok i know that the 98 LS1's have different valve cover bolts but what are the other differences, i had someone tell me they have weak main bolts, and also different ECM's is this true and are there any other differences, i had a guy offer to buy my car and am looking at picking up a NBM 98 Z28 M6 but dont want to have a bunch of problems with getting it tuned or with parts availability.
12-07-2010, 12:59 PM
#3
LS1Tech Administrator
iTrader: (3)
Join Date: Nov 2001
Location: Schiller Park, IL Member: #317
Posts: 32,023
Likes: 0
Received 1,471 Likes
on
1,060 Posts
Check out the FAQ sticky at the top of this section.
