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VN buick throttle body

89S1 MANual

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Was going to upgrade my VN throttle body when I noticed these numbers on the side 23-3147 23-07-99 can't find Any info? is it standard is the second part a date maybe of a VT any info would be great
 

immortality

Can't live without smoky bacon!
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Have a look on the TB butterfly and see what size is stamped on it. V6 stock is 60mm and the V8's had a 65mm one.
 

89S1 MANual

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Thanks! just had a look it's stamped 65 with a 8 underneath I won't bother with the 70mm :)
 

immortality

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70mm is real touchy, I changed back to 65mm V8 unit when I was doing a lot of city driving.
 
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