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Looking for correct restoration finishes for 51 216
#1369648 Sat Jul 18 2020 09:35 PM
Joined: Jul 2020
Posts: 7
E
Emerald Offline OP
New Guy
Does anyone here have a 51 216 engine bay they consider to be factory correct? Finishes, wire, hoses, routing, etc... I’d like to see pics, paint colors, etc... Thanks in advance.

Re: Looking for correct restoration finishes for 51 216
Emerald #1369692 Sun Jul 19 2020 11:01 AM
Joined: Mar 2005
Posts: 143
R
Shop Shark
Here are a couple of images of an all original 216 engine in a 1950 Chevrolet sedan. From every one I’ve seen, the truck 216 engines were the same color, - dark cast gray. Some see a hint of dark blue in the gray on the block.

Attached Files
Image9.jpg (50.62 KB, 253 downloads)
Image10.jpg (46.9 KB, 248 downloads)
Re: Looking for correct restoration finishes for 51 216
Emerald #1369696 Sun Jul 19 2020 11:57 AM
Joined: Aug 2005
Posts: 9,125
Master Gabster
The commonly accepted Chevy gray for engines is being sold by The Filling Station. [fillingstation.com] Different computers and monitors will show slightly different colors. I see from getting the link that it's gotten pretty pricey but I guess all car paint is expensive these days. Below are a couple of pics of my 216 in it's new livery following it's rebuild. It's important to keep in mind that Chevy didn't buy one master batch of engine paint from one jobber. Batches were mixed by different jobbers when and where they were needed so hues will vary. Anything close will be OK.

Attached Files
IMG_1063.JPG (283 KB, 218 downloads)
IMG_1067.JPG (357.69 KB, 215 downloads)
Last edited by Tiny; Sun Jul 19 2020 11:58 AM.

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Re: Looking for correct restoration finishes for 51 216
Emerald #1369702 Sun Jul 19 2020 12:16 PM
Joined: Mar 2014
Posts: 126
G
Shop Shark
Here's the paint I used, which is a little lighter in color than Tiny's paint. It's also slightly little less expensive.

Classic Industries Engine Paint [classicindustries.com]

Attached Files
WP_20180927_13_28_32_Pro.jpg (224.9 KB, 217 downloads)
WP_20180927_13_29_33_Pro.jpg (252.25 KB, 212 downloads)

Greg Brown
'49 Chevy 3100
Re: Looking for correct restoration finishes for 51 216
Emerald #1369703 Sun Jul 19 2020 12:24 PM
Joined: Sep 2001
Posts: 30,450
ace skiver
Excellent post/information, Tiny.

Especially: "It's important to keep in mind that Chevy didn't buy one master batch of engine paint from one jobber. Batches were mixed by different jobbers when and where they were needed so hues will vary. Anything close will be OK.


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Looking for correct restoration finishes for 51 216
Emerald #1369715 Sun Jul 19 2020 02:38 PM
Joined: Nov 2002
Posts: 2,067
C
Carburetion specialist
The carburetor would be finished as follows:

Cast iron throttle body - black oxide
Bowl and air horn castings - chromate (NOT di-chromate) IMPORTANT: the chemicals used require an EPA permit, and are known to be both carcinogen, and capable of causing dementia. DO NOT ATTEMPT THIS AT HOME! There are companies that have the capability of doing this. At the present time, I do not know who, as I have not needed them for a number of years.
Steel items (throttle arm, links, screws) - yellow zinc or yellow cad

The above is true for 1951.

Sometime in the 1955~1956 time period (yes Virginia, there is an overlap on different carburetors), Rochester changed to black oxide finish on the screws, but retained the yellow zinc/cad on the other steel items).

Jon.


Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify
If you truly believe "one size fits all" try walking a mile in your spouse's shoes!
[image]http://www.thecarburetorshop.com/Avatar.jpg[/image]
Re: Looking for correct restoration finishes for 51 216
Emerald #1369717 Sun Jul 19 2020 02:47 PM
Joined: Nov 2002
Posts: 2,067
C
Carburetion specialist
The original poster suggested restoration, which means the Rochester carburetor.

For those who have upgraded to Carter carburetors, the finishes should be:

Cast iron throttle body - Parkerized, then painted with Carter special body paint (hint: use 60 percent gloss black).
Zinc castings (chromate like the Rochesters - see the caviat in the post above)
Aluminum castings - left natural.

Steel pieces, including screws: Carter was located across the street from Howard Crown Plating. When steel items came from the stampings shop, they were delivered to Howard Crown, and plated with the military protection du jour. Crown used white and yellow zinc, and white and yellow cad; all four finishes would be considered correct. The most common of these would be white zinc. I have new old stock Carter carburetors (later, in the early 1960's) that exhibit all four finishes. Would guess about 65~70 percent of the steel finishes would be white zinc.

Jon


Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify
If you truly believe "one size fits all" try walking a mile in your spouse's shoes!
[image]http://www.thecarburetorshop.com/Avatar.jpg[/image]
Re: Looking for correct restoration finishes for 51 216
Emerald #1369724 Sun Jul 19 2020 03:28 PM
Joined: Jan 2020
Posts: 497
D
Shop Shark
I had a wonderful conversation with an old guy 30 years ago that was helping me restore two classics. He worked for Chevrolet division paint department. He told me the same thing that Tim said. At the time whichever jobber got the best low bid mixed the engine paint by there eye. Therefore both the blue and grey were varied. The color of grey was called dove grey according to him. Tim, I believe has an article regarding your question. The end result is it is great for us because we don't have to be ruled by an exact shade. Take it from a guy that painted his 54-3100 engine blue. Apparently the cars were blue trucks grey. Doc.


Currently making 1954 3100 better than new
Re: Looking for correct restoration finishes for 51 216
Emerald #1369798 Sun Jul 19 2020 11:08 PM
Joined: Nov 2000
Posts: 1,968
F
Shop Shark
http://devestechnet.com/Home/Project1959235#sheetmetalprep

According to Deve’s article he used Medium Grey.


Professional Novice
Re: Looking for correct restoration finishes for 51 216
Emerald #1369807 Mon Jul 20 2020 01:24 AM
Joined: Mar 2004
Posts: 4,637
M
Shop Shark
Anything close to a medium to dark gray will work...there has never been a Chevrolet published paint code for these engines.

Mike B smile

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