jpatfarrell

Newbie here and to Cutlass. I just bought a '70 Cutlass Supreme Convertible project car in need of lots of restoration. It should be delivered to me on Sunday.

In a different post I had a couple of pictures of the engine casting numbers and Kenneth- Fun71 commented on the large oil pressure sending unit he saw in the picture and asked if it had the Ralley Pack Gauges

I went back yesterday to buy the car and took a closer look at the instrument panel. It definitely has gauges for the Oil Pressure and Water Temperature and not idiot lights and has a tach with the clock. Picture below.

The engine block casting numbers are 395558 which indicate it could be a W-31. I attached the Engine Block ID pdf.

Would having the Ralley Pack Gauges indicate that it has the W-31 option? What other reasons would someone add these special gauges to a Cutlass Supreme?

I haven't been able to find much info yet about what a W-31 means or how to determine if this Cutlass has that option.

Any info would be appreciated.

thanks,

Pat

joe_padavano

The Rally Pac was optionally available on ANY Cutlass in 1970, and in fact the W-31s did NOT come with them as standard equipment. No W-31 convertibles were built in 1970.

jpatfarrell

Thanks for the info...I guy can dream can't he

cherokeepeople

my old 70 w-31 had buckets console and dual gate but no gauges.

Jon442

Build a phantom! Would definitely be cool and unique.

1970greensupreme

My 70 Supreme is about as close to a W31 as you can get with it's engine/trans/rear/ralley pack. We can dream

Fun71

.400" lift, 250º duration cam vs .474" lift, 308º duration cam. Not really that close.

.

1970greensupreme

actually, my Supreme is a later 70 production with a qb engine which uses a cam from a 69 400. Spec on that cam is .472 lift, 286/286 duration and uses a unique carb, p/n7043253 which has larger jetting. This engine was only available with 4spd and 3:42 and higher gear ratio. I believe there were only about 500 of these engines built so it might be a little closer to a W31 then you originally thought

1970greensupreme

actually, my Supreme is a later 70 production with a qb engine which uses a cam from a 69 400. Spec on that cam is .472 lift, 286/286 duration and uses a unique carb, p/n7043253 which has larger jetting. This engine was only available with 4spd and 3:42 and higher gear ratio. I believe there were only about 500 of these engines built so it might be a little closer to a W31 then you originally thought

Fun71

Didn't see that it was a 4 speed. So yes it is a bit closer than the average 350-4bbl.

oldsmobiledave

Your build sheet is a lot easier to read if you don't post the picture sideways.

Nice car with decent performance. Enjoy.

1970greensupreme

Ya know, I build an engine, trans or pretty much a whole car from the ground up but can't figure out how to flip a pic once it's uploaded here.