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Originally Posted by Oldsfan
Pedal,
If you've seen websites quoting 365hp, I would like to know what they are. I would like to see what you are seeing. That might lead to a better understanding.
Factory compression was 8.5:1 across the board in '71, even in the W30 high performance engine. Engines build up carbon over the years, increasing compression. Maybe that is why yours is testing at 10:1.
It is very possible that the package your car has was installed by a dealer, or a regional or local dealer marketing group. In that case, without documentation, you really don't have anything to go on.
It is also possible that someone went to alot of trouble and expense to have decals and emblems made up because they wanted the car to be different, or because that is what they liked. The graphics are not hard to do. Most sign painters or stripe places can do that stuff. The emblems are a different story. They would almost have at be cast of something - either plastic or metal. A mold would have to be created. That's a lot of expense and work to make 3 emblems to put on one car. Now, if there's another GM car out there that for some reason used emblems that said L31, problem solved.
Do you have the ability to scan the buildsheet you have?
Paul
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I will get al neccesary stuff and get back here in a couple of days ( im off for work for a view days..), The webs and book data im 100% sure i can find it.
I believe there was also something on a olds ROCKET forum somewhere.
Were the L31 70/71 was a high performance 455 in that year.
BUT maybe im wrong , but dont think so.
The emblems are so very fitting the oldsmobile logo's above that i dont think
there fake...
Maybe its ? as you say a special dealer type car ? does anybody now of these dealer car(s) ? was there a "yenko"type of olds dealer anywhere ?
BUT as said il get what is possible to figure out this car !
THANKS again so far !