1970 Heater Blower

[Rbob]

What is the correct finish?

Mine is black but I am sure it is not correct.  Pics I have seen look different than the wiper motors.

[Cuda Cody]

Silver Zinc plated is correct for 1970.

[Rbob]

I cant trust my eyes!

Thank you Cody.

[anlauto]

If you remove it from the plate, it would be interesting to see if there is black paint under the gasket...

[moreparts]

Hmmm,  mine is black too.  I've owned the car since '91.  Is it possible a case of different plants or suppliers?

[Skdmark]

For 70-71 the blower motors are mostly found with the zinc plating. 72-74 they are mostly found semi-gloss black.
Close inspection might let you know what the finish was originally.

[Jay Bee]

Picture of a restored one (1970 Ebody non-A/C)

[Burdar]

The later years are definitely black.  72 is a transition year with a lot of things so it would be interesting to see what came on the 72s.  My 73 was black.  Replacement motors were black as well.

What does the date code read on the 1st picture.  Does it match up with the SPD of the car?

[Rbob]

Pic of date code:

[Burdar]

Isn't the last 4 numbers the date?  227th day of 1972.

[moreparts]

I think I'll piggy back on here for a date code opinion.   This looks like a 2459 in a May 15 '70 car.  I'm thinking that would be about right for an original.  Thoughts?

[Skdmark]

Pic of date code:

The layout above looks different than the 70-71 blower motors I've handled. The 70-71stamping layout I've seen is
       part number
       vendor code      date code.

I think you have either an over the counter replacement or one pulled from another car.
Has the heater box or heater core ever been rebuilt?

Off my 71 Barracuda with AC
Heavily oxidized when I got it. Hit it with simple green and scrubbed with 0000 steel wool.
1520 = 152nd day of 1970. SPD is 812.