Guest TurboSedan Posted April 20, 2005 Report Share Posted April 20, 2005 i could have sworn that the '92 SSE i looked at yesterday had an aluminum upper intake manifold, but looking at Shaun's '94 Bonneville SSE L27 his intake seems to be black plastic? did they change that somewhere between '92 & '94? any other differences between the '92 L27 and newer L27s up to '94? also what was the hp/tq rating of the '92 L27? thanks! wish me luck i hope to be the owner of a loaded black '92 SSE later today.... Quote Link to comment Share on other sites More sharing options...
slick Posted April 20, 2005 Report Share Posted April 20, 2005 Yes, they changed them to a plastic intake manifold. I have heard of them melting before (kid in high school had an L36, the intake melted aparantly). Not sure whether they flow better or not though. Quote Link to comment Share on other sites More sharing options...
95 3-4 Posted April 20, 2005 Report Share Posted April 20, 2005 My 92 had a grey alum manifold and my friends has a black intake and I swear its alum, another guy I know had a transport van around a 95 and it had plastic cause his cracked Quote Link to comment Share on other sites More sharing options...
Curlybandit Posted April 20, 2005 Report Share Posted April 20, 2005 A 1992 L27 has 170hp, and 220tq stock. Curlybandit Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted April 20, 2005 Report Share Posted April 20, 2005 They switched to the black plastic in 93. Also they added an EGR valve to the front exhaust manifold because the older aluminum manifold engines (that didn't have the EGR) would burn up exhaust valves... Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted April 20, 2005 Report Share Posted April 20, 2005 thanks for the info Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted April 20, 2005 Report Share Posted April 20, 2005 Also they added an EGR valve to the front exhaust manifold because the older aluminum manifold engines (that didn't have the EGR) would burn up exhaust valves... BTW was this a serious problem with '92 L27s? Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted April 20, 2005 Report Share Posted April 20, 2005 It wasn't a major problem. Plenty of '92 L27's are still running fine EGR-less, just look at Bonnevilleclub.com. And yes, to just reiterate what everyone else is saying, it's a plastic manafold. Why, I don't know.. They were so proud of it they even have little "recycle" emblems stamped on it. Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted April 20, 2005 Report Share Posted April 20, 2005 They were so proud of it they even have little "recycle" emblems stamped on it. Ha! I totally forgot about that! I remember seeing that when I first "kicked the tires" on my Regal and had a good chuckle over it. FYI, my 92 LeSabre had 200k on it when I traded it, and it never suffered from any burnt up exhaust valves... Quote Link to comment Share on other sites More sharing options...
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