4 speeds for 55-56 chevrolet superstockers

Robert Simpson · 12-24-2007, 11:16 PM

Mike and Bill that is some info that I did not know. But, I still have a question about the rule. I do not think that NHRA did the rule change based on 55-57 chevys. The rule was obviously made to help the 283's, 327 and 350's, it just so happens that it will help other, lower classed cars ie SS/NA-PA. I realize your point about the turbo came as a option, just not a turbo 350 that we are used to. But, am I correct that a 55-57 came with a three speed manual with a optional overdrive that was in the transmission case? Since the rule just recongnizes same number of forward gears and OD optional would it not be a valid argument for the manual shifts as it would be for the automatic? By the way all these rule changes that have come down over the years has not been to enhance racing, it is to "simplify" the teching. And to allow combinations that have recently been torn down and realized that they were claiming a powerglide combination BUT, was running a turbo and stated that it came in the other year engine that he was claiming ie 67 350/powerglide vs 69 350/turbo. My point remains if this transmission rule continues then why can a 55-57 not get a 4sp manual?

12-24-2007, 11:16 PM	#40
Robert Simpson Senior Member Join Date: Aug 2004 Location: Jacksonville, Florida Posts: 808 Likes: 7 Liked 20 Times in 12 Posts	Re: 4 speeds for 55-56 chevrolet superstockers Mike and Bill that is some info that I did not know. But, I still have a question about the rule. I do not think that NHRA did the rule change based on 55-57 chevys. The rule was obviously made to help the 283's, 327 and 350's, it just so happens that it will help other, lower classed cars ie SS/NA-PA. I realize your point about the turbo came as a option, just not a turbo 350 that we are used to. But, am I correct that a 55-57 came with a three speed manual with a optional overdrive that was in the transmission case? Since the rule just recongnizes same number of forward gears and OD optional would it not be a valid argument for the manual shifts as it would be for the automatic? By the way all these rule changes that have come down over the years has not been to enhance racing, it is to "simplify" the teching. And to allow combinations that have recently been torn down and realized that they were claiming a powerglide combination BUT, was running a turbo and stated that it came in the other year engine that he was claiming ie 67 350/powerglide vs 69 350/turbo. My point remains if this transmission rule continues then why can a 55-57 not get a 4sp manual?