Originally Posted by 93-SSE
Cool, sounds good!
Learning more everyday. Makes sense that they were phased in, just didn't realize it. Any differences between a '93 and a '95 L27?
I can't wait to get back down there.
Yes there are very slight differences for things or issues Gm was trying to correct for... the 92-93 3800 and 3300 engines had some main bearing clearances issues... This was not an issue with the 94-95 engines..
The one issue the 94-95 engines had was the Valve stem seals leaking a little... Brads 94 even has this issue and we have chatted about it and what to do with it... and the simple answer is that we'll end up replacing his valve stem seals in the future...
With the complete gasket set, your heads will get new Valve stem seals.... The 94-95 3800 L27 heads remind me a lot of the old chevy 350 valve stems... Great motors but for what ever reason they beat the vale stem seals...
I'd say by the time you even had a valve stem issue again the motor would be worn out by then...lol
Generally the 94-95 Motors ran a bit better than the 91-93 L27... But a little bit of that will be PCM differences as well..
Its funny tho, GM made changes to this motor over the years and never changed the HP rating... To drive a 92 L27 and then to Drive Brads 94 is like night and day... I'll be interested to see how this motor runs, drives, idles....
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