Differences in years on the LS1
08-01-2007, 12:07 PM
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Differences in years on the LS1 Where can I find the changes in LS1 engines from year to year?
I'm looking at grabbing a 97 vette LS1 and would like to know if I should stay away from the earlier years, or if any changes were minor.
I'm looking at grabbing a 97 vette LS1 and would like to know if I should stay away from the earlier years, or if any changes were minor.
08-01-2007, 10:45 PM
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97-98 block have very small oil breath by in the bottom end and the heads are designed with parameter bolts and those block are prone to oiling problems cussing spun bearing and such..
u can still make a lot of power with these blocks but if you get one find a good machine shop that can machine bigger oiling passages in the bottom end and replace the heads with 243 ls6 or if your going to turbo it use the 317 6.0 truck heads will drop comp to about 9.5:1
u can still make a lot of power with these blocks but if you get one find a good machine shop that can machine bigger oiling passages in the bottom end and replace the heads with 243 ls6 or if your going to turbo it use the 317 6.0 truck heads will drop comp to about 9.5:1
Last edited by transam45; 08-01-2007 at 10:50 PM.
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08-01-2007, 10:50 PM
#8
Originally Posted by transam45
97-98 block have very small oil breath by in the bottom end and the heads are designed with parameter bolts and those block are prone to oiling problems cussing spun bering and such..
u can still make alot of power with these blocks but if you get one find a good machine shop that can machine biger oiling passages in the bottom end and replace the heads with 243 ls6 or if youring going to turbo it use the 317 heads will drop comp to about 9.5:1
u can still make alot of power with these blocks but if you get one find a good machine shop that can machine biger oiling passages in the bottom end and replace the heads with 243 ls6 or if youring going to turbo it use the 317 heads will drop comp to about 9.5:1
1999ssls1 wrote:
