Welcome, Steve -

Beautiful truck.

Stovebolt engine colors changed over the years. This link says that 1957 truck 265's and some 283s were gray, but 6-cylinders were not.
> Engine colors

Here is the GM Resto Kit for your '57. A ton of info in one pdf file - so it's not real easy to use.
> GM Heritage Ctr 1957 Chev Truck

The '57 Resto Kit is not available on Keith Hardy's site, but almost everything else is.
> Keith Hardy's OLD ONLINE CHEVY MANUALS

But the best sources of info are Stovebolt.com members.

BTW - I learned something new while I was answering your post. I didn't know that 265's were still available in 1957 until I found them in the 1957 GM Heritage Center link above.

- Lonnie

- Lonnie
My '54 3104
Photos that I have shared on Stovebolt via PhotoBucket are no longer available. Please contact me if you want a photo from an old post.
lonniecook [at] aol [dot] com. I sold my '54 3104 12/12/2017, but I still visit Stovebolt.

OLD STUFF ... houses, furniture, cars, wine ... I love it all