Engine date code lead time to Trim plate date
#1
Engine date code lead time to Trim plate date
What would one expect for normal lead time of a date code of 295 on the block to install in a chassis. My 72 Cutlass Supreme conv. has a Trim plate with 3rd week in Dec. build date.
Also of note the heads have different date codes of 303 and 306, I assume that would be within normal resonability of building an engine, correct?
And lastly what would be the most days between head date codes, I have a set of Ga heads with 101 days between the cast dates? Both came off of a what seems unmolested engine.
Thanks
Also of note the heads have different date codes of 303 and 306, I assume that would be within normal resonability of building an engine, correct?
And lastly what would be the most days between head date codes, I have a set of Ga heads with 101 days between the cast dates? Both came off of a what seems unmolested engine.
Thanks
#2
Just an Olds Guy
Join Date: Jul 2008
Location: Edmonton, AB. And "I am Can 'eh' jun - eh"
Posts: 24,525
If it's not the original engine from the car, I wouldn't be concerned about the date code issues in the slightest. The original engine will have Div/yr/factory and last 6 of VIN stamped on the stamping pad of the engine.
#3
those dates seem to correlate fine with your car. The one set of heads does seem like a big gap - 101 days but who knows. I've seen lots of cars with heads from a few days to a few weeks difference.
#4
The VIN derivative stamp will tell you if the block is correct. The date code is irrelevant if it's not original. As for the heads and other parts not VIN-stamped, 30 days prior to the build date is typical, 90 days is about the accepted limit.
#5
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September 22nd, 2020 02:05 AM