The 1960 - 1966 Chevrolet & GMC Pickups Factory Correct Restoration Thread

[factorystock]

Originally Posted by oem4me

Black. Pic is of an original paint truck in white.

This is why clean original trucks are so special, you can learn how the factory did it!

[Submariner616]

Sure is great having their owners on this site, too!! Terrific help to those of us doing a stock restoration.

[f66]

Engine Casting Number, Casting Date and Assembly Date Question. Has anyone done research on known original trucks to figure out relationship of engine block casting date, engine assembly date, and vehicle final assembly? I have a 1966 Custom Camper built in Fremont, mid-June 1966. Am building a new engine. 327, with 3858174 block, the casting date is L-3-5 which equals December 3, 1965. The Flint assembly date = 1209 YH = December 9, 1965.
Is this block to early for my June built truck?

Thanks, Frank

[VictoriaHardware]

1-2 months is more typical, but that's not too early.

[yelmer]

i also have a June built custom camper 327 cast date is June 13 truck was built June 20th The block stamp is June 15th

[f66]

Thanks for the replies. Yelmer, your sequence is very helpful. Consistent with other vehicles I have researched. Shows how tight all of the assembly dates are.

[f66]

Yelmer, my truck was built 14 June 1966.

[yelmer]

Fremont truck? vin 177???

[f66]

Yelmer, Fremont truck, 176396

[jbgroby]

I was sandblasting 2 OEM hood hinge assemblies and noticed a factory name stamp. "Hancock" embossed over a large 'H'. Are these factory OEM? If so we found another piece of the puzzle......

[Llay R. Rac]

Last week I replaced my original hood hinges with NOS hinges, both the originals and NOS had the Hancock emblem.

[jbgroby]

Originally Posted by Llay R. Rac

Last week I replaced my original hood hinges with NOS hinges, both the originals and NOS had the Hancock emblem.

Perfect!

[f66]

Here is the tag from my 1966 C20. How is this de-coded?

Thanks Frank

[yelmer]

May 25 1966

[f66]

Yelmer, thanks. Is there a reference for this. I get May. How is the day figured? I was thinking May 09 1966. Again thanks for checking Frank

[yelmer]

well is it kind of strange . The year 1965 the 1966 trucks were made to determine the date of the tranny is from Jan 1 1965 to May 25th 1966 is 509 days i hope this makes sense take care

[f66]

Originally Posted by yelmer

well is it kind of strange . The year 1965 the 1966 trucks were made to determine the date of the tranny is from Jan 1 1965 to May 25th 1966 is 509 days i hope this makes sense take care

Yelmer, thanks. learn everyday. The date and timing works with my June built truck. What is the date of your transmission?

[yelmer]

i checked mine it is also 509 7377

[f66]

Originally Posted by yelmer

i checked mine it is also 509 7377

That’s neat. Thanks for sharing

[f66]

Originally Posted by yelmer

i checked mine it is also 509 7377

That’s neat. Thanks for sharing

[aotte1]

Just FYI, another 66' Custom Camper turbo 400 trans built tag.

[yelmer]

Les looks to be Nov 20 which is a Saturday they might of had a shift is that 324 or 224 I did it for 324

[f66]

Need help with parts numbers and ID. Attached are pictures of my 1966 C20 Bendix power booster and master cylinder. My understanding is these trucks could come with either Bendix or Delco Moraine boosters and M/C.
Questions:
1. The M/C has part number 618082 cast in the bottom and has a screw on cap. Is this potentially an original or replacement original?
2. What are the Bendix part numbers for the Master cylinder, and part number for the booster?
3. What are the Delco Moraine part numbers for the Master cylinder, and part number for the booster?

Thanks for the help, Frank

[yelmer]

the parts book calls for moraine unit #5465489 1.0" bore with booster . booster 3834112 bendix (2501747}

[f66]

Yelmer, thanks is my master cylinder the right part number? Also where is the part number on the booster? And last, are the boosters date coded?