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#1
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GM Experimental Prototype SBC 3x2 / Tripower setup
Looking for info on this setup. I have heard there were only a few of these experimental prototypes built, GM Winter's casting stamp, SBC 3x2 (Tripower) setup. Holley carbs similar to the BBC Corvettes. I've heard they were tested for Trans Am racing, and Smokey Yunick had some experience with these. Thanks for any info you guys can share.
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#2
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Re: GM Experimental Prototype SBC 3x2 / Tripower setup
That was to be the L70 350 option for 1967; it's shown in the 1967 Assembly Manual. Cancelled April 1966. A few '0-' manifolds are known to exist.
If Smokey Yunick had anything to do with it he didn't mention it in his book. Since Chevrolet cancelled it long before introduction day I doubt it was ever considered for the Trans-Am. It is not listed in the SCCA Homologation papers for the Z/28.
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Learning more and more about less and less... |
#3
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Re: GM Experimental Prototype SBC 3x2 / Tripower setup
Is that for real? I never even knew GM was considering such a thing for the SBC, let alone for a '67 350.
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#4
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Re: GM Experimental Prototype SBC 3x2 / Tripower setup
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 1969HO455</div><div class="ubbcode-body">Looking for info on this setup. I have heard there were only a few of these experimental prototypes built, GM Winter's casting stamp, SBC 3x2 (Tripower) setup. Holley carbs similar to the BBC Corvettes. I've heard they were tested for Trans Am racing, and Smokey Yunick had some experience with these. Thanks for any info you guys can share.
</div></div> The on the spot recollection from Norwood was that prototypes of the L-70/Camaro were made-and striped in paint just like the Z/28 was later in production. Your assertion about a potential connection to Trans-Am at the planning level is accurate from what my research has discovered. |
#5
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Re: GM Experimental Prototype SBC 3x2 / Tripower setup
What is the history on the pictured car? Do you have any additional photos?
Thanks for sharing. Marty |
#6
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Re: GM Experimental Prototype SBC 3x2 / Tripower setup
I have come across "A" Winters marked SBC 3X2 manifold before. I was intriqued by the markings and the seller wanted a ridiculus amount of money, at the time. Was it a GM piece? Who knows, Winters is close enough to us in NEO, lots of cool stuff and stories pop up.
BIG |
#7
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Re: GM Experimental Prototype SBC 3x2 / Tripower setup
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 68l30</div><div class="ubbcode-body">I have come across "A" Winters marked SBC 3X2 manifold before. I was intriqued by the markings and the seller wanted a ridiculus amount of money, at the time. Was it a GM piece? Who knows, Winters is close enough to us in NEO, lots of cool stuff and stories pop up.
BIG </div></div> A fella I knew in Canton, Ohio told me that more Winters aluminum intake manifolds "went over the fence" and were stolen than actually put on cars back in the day. He stated there were lots of intakes floating around the Canton area and most likely still are stuffed away in garages. Rich
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"This is Sheriff Buford T. Justice, I'm in pursuit of a black Trans Am, he is all mine so stay out of the way" |
#8
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Re: GM Experimental Prototype SBC 3x2 / Tripower setup
Very interested to know more about this car. A few of these were supposedly built in Norwood for testing ... did one survive? I suppose the suffix code on the engine would be helpful as would the VIN and cowl tag data of the subject car.
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#9
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Re: GM Experimental Prototype SBC 3x2 / Tripower setup
If one survived, it likely gave up its rare parts to this car. The car pictured is a 69, as is the engine, and the hood.
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Don't believe everything you read on the internet ... Ben Franklin |
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