Guest Posted October 1, 2002 Share Posted October 1, 2002 Does anyone know the correct # for the carb that came on the 70' Rallye 350? I need a new carb and the one that's on it now came from a 455 - thanks for any info Link to comment Share on other sites More sharing options...
rocketraider Posted October 1, 2002 Share Posted October 1, 2002 The 1970 shop manual indicates 7040250 for all 350 AT, MT with or without A/C.The Delco carb book I have, in bulletin 9C-5028 dated November 1971, indicates it could also use the 0255 carb which was the W31 carb <img src="/ubbthreads/images/icons/confused.gif" alt="" /> ? and there's always been a question about whether those cars could be had with W31. Link to comment Share on other sites More sharing options...
Guest Posted October 1, 2002 Share Posted October 1, 2002 Thanks alot for the info - maybe now I can get me a new carb and get her up and running again - I have also read where there is a debate over whether the very first few of the Rallye's were made with the W-31 - wonder how true this is? - mine was produced in Feb of 70 - very first month of production on the Rallyes - who knows, maybe I'm driving one of those W-31 Rallye's and just don't know it - it's nice to dream - lol - thanks again Link to comment Share on other sites More sharing options...
rocketraider Posted October 2, 2002 Share Posted October 2, 2002 The factory says no W31 Rallye 350s built. The Rallye 350 Club says 12. Offering the W 350 in the Rallye seems counterproductive as it was designed as an insurance fighter. No big-block, no specific body style, nothing to give away its intent as a junior supercar. An Oldsmobile RoadRunner as it were.Of course, its original incarnation was supposed to be the 1970 Hurst/Olds and it is designated as RPO W45, same as 1968-69 Hurst. Link to comment Share on other sites More sharing options...
Guest Posted October 2, 2002 Share Posted October 2, 2002 Interesting - I wonder who is actually telling the truth? How would you know if a Rallye was a W-31 Rallye? - Also, do you happen to know how many 4spd Rallye's were produced? Just wondering - thanks Link to comment Share on other sites More sharing options...
rocketraider Posted October 2, 2002 Share Posted October 2, 2002 E-mail me privately and I'll give you a contact who would know. Don't like giving out other folks' e-mail addresses in a public forum. Link to comment Share on other sites More sharing options...
Guest Posted October 4, 2002 Share Posted October 4, 2002 I tried emailing you but it came back as a failure notice - let me know how to get in touch with you - I'd like to talk to this guy about my Rallye - thanks again Link to comment Share on other sites More sharing options...
Guest Posted October 7, 2002 Share Posted October 7, 2002 rocketraider email me so I can get that info about my Rallye - here is my emailsabrsfan@chartertn.net - thanks Link to comment Share on other sites More sharing options...
Guest Posted November 6, 2002 Share Posted November 6, 2002 Hey, don't know if you have recieved the info yet. But the Rallye 350 carbdoes have part# 7040250 or 255 depending on A/C or not. The W31 question is one of those bigfoot tales. The car was a light low dollar "Roadrunner" type of deals. The W31 engine cost was too high to waste its power in the Rallye. I have had a fascination with these cars for years now and have owned 1. You also have to remember that the engine was just a Cutlass Supreme 4 barrel engine with a little bit hotter cam and dual exhaust. The ram air didn't really do much for it. Just a visual thing along with that paint job. Link to comment Share on other sites More sharing options...
Steve Moskowitz Posted November 7, 2002 Share Posted November 7, 2002 I agree with the last post....we drove these things as company cars back in the day! They did not sell very well at the time. We affectionally called them Yellow Bananas and most of the Olds employees in Chicago did everything they could to not get one as a company car! I hate to say never as a lot of very interesting things went out of the factories back then but a peroformance option on the 350's is not offered in any of the literature I have ever seen. <img src="/ubbthreads/images/icons/cool.gif" alt="" /> <img src="/ubbthreads/images/icons/laugh.gif" alt="" /> Link to comment Share on other sites More sharing options...
rocketraider Posted November 7, 2002 Share Posted November 7, 2002 A/C didn't affect carb usage on 1970 350s. All except W31 used 0250 carbs for AT, MT and A/C-non A/C applications. The 0255 carb was for W31 only, AT, MT A/C or non A/C and didn't have a power piston or metering rods. For the record the 0256 W30 455 MT carb didn't either. Link to comment Share on other sites More sharing options...
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