Casting dates vs. build dates

[COPO 70 RS/Z28]

Rick, Is there any general policy on Carbs and Dist for date ranges. I have heard from a couple weeks to 4 months????

[Mr70]

From what I've seen,the distributor was installed on the engine early on before it was deemed a self reliant running unit & reached the vehicle.It's date would've been anytime prior,(usually weeks before),to the engines stamped completed assembly date.

The carburetor was installed after that date,so it's date was more prior to the vehicles cowl tag started assembly date,weeks to a few months in general.

Understand these were just components sitting on a shelf,waiting for installation somewhere so some examples may differ from above.

[COPO 70 RS/Z28]

So a 052 carb date would still be within the range for a 05E cowl date ????

[Mr70]

Absolutely,and makes sense.
1970 May,2nd week assembled carb,on a 1970 assembly started May 5th week vehicle.

[COPO 70 RS/Z28]

Man thats super, I was sure it was to late!!

My car was missing the original carb when I bought it. A couple months after I purchased the car I went into shock when I discovered that I would need a dated 4554 for the car. I was depressed at the possibility and price, let alone the date issues. One day a week or so later I was pecking around evilbay and I was amazed to see an 052 "COMPLETE" 4554 with a BIN of $250.00. Needless to say the button was hit and the payment sent that instant!!!!

Got the carb, correct metering blocks linkages etc.

I look often and I have only seen one other, a week ago missing pieces, I think it had the wrong bowl, not sure about the blocks... etc.

To say the least I got lucky that day.



Sorry I checked the one last week was a 4490 not a 4554