1968 L88's

[Mark S.]

Of the 80 1968 L88's produced does anyone know how many have been actually accounted for and how many were convertibles? Looking at a January VIN with no motor but all else intact. Has m22 and 6500 rpm tach. Guy claims motor was 430 hp. Any help is appreciated.

Mark

[Mark E.]

Re: 1968 L88's

Mark,

I don't know how many L88s are accounted for, but wasn't the M22 only used with L88? So if you're confident the M22 is original to the car, then...

[Joe L.]

Re: 1968 L88's

Mark,

I don't know how many L88s are accounted for, but wasn't the M22 only used with L88? So if you're confident the M22 is original to the car, then...

Mark and Mark------


Yes, for 1967, 1968 and 1969 the the M-22 was only available with L-88 (or ZL-1 for 1969). However, in the case of the car mentioned in the original post, is the transmission, for sure, an M-22 and is it, for sure, original to the car? Those are the salient questions.

[Mark S.]

Re: 1968 L88's

That's my understanding. I will look for the VIN stamp and/or other #'s on the trans but i believe the early ones did not have the codes, i.e. P8aXXC. Hopefully, the tank sticker is still there but won't know that unless we buy it and drop the tank! Do you know if there rag tops with the L88??

Mark

[Joe L.]

Re: 1968 L88's

That's my understanding. I will look for the VIN stamp and/or other #'s on the trans but i believe the early ones did not have the codes, i.e. P8aXXC. Hopefully, the tank sticker is still there but won't know that unless we buy it and drop the tank! Do you know if there rag tops with the L88??

Mark

Mark-----


The important things on the transmission are the dates and the car's VIN derivative. Whether or not it's an M-22 is easily and positively discerned by removing the side cover. You cannot rely on the presence of a drain plug or lack of annular grooves on the input shaft. Drain plugs can be added and once available aftermarket replacement input shafts usually had no grooves for any of the Muncie variants.

I don't know for absolute certain but I am very confident that some 1968 convertibles were equipped with L-88 engines. How many, no one knows for sure. In fact, my guess would be that there probably were more convertibles than coupes, especially for the 1968 model year.

[Mark S.]

Re: 1968 L88's

Thanks. Good points on the drain plug and the input shaft. Hopefully, I can see the Vin derivative but if not will have to wait to pull the side cover since shifter is still in place.

[Joe L.]

Re: 1968 L88's

Thanks. Good points on the drain plug and the input shaft. Hopefully, I can see the Vin derivative but if not will have to wait to pull the side cover since shifter is still in place.

Mark------


You should be able to see it. It's stamped on the side of the transmission at the extreme upper rearward end of the main case on the right side.

[Mark E.]

Re: 1968 L88's

Going back to Mark's original question: How many L88 VINs are known? There aren't that many.

[Dick W.]

Re: 1968 L88's

Going back to Mark's original question: How many L88 VINs are known? There aren't that many.

There is a private list but owner will not share it.

[David B.]

Re: 1968 L88's

GM Production records for 1968 do not show any L-88 convertibles were produced.

[Patrick H.]

Re: 1968 L88's

GM Production records for 1968 do not show any L-88 convertibles were produced.

I don't think GM kept track of that since we know that there were, in fact, L-88 convertibles produced in 1968.

[David B.]

Re: 1968 L88's

Your right, should have thought twice before hitting the response button on that one. I am also aware of L-88 conv. in 1968. To clarify: The production records DO NOT breakout 437 or 467 with the L-88 option.