Early build engines to late build cars
 

What is anyone's thought about early build engines to late build Impalas from Janesville. My 1st week of July build SS427 has an engine that was built the 9th of November

Re: Early build engines to late build cars
 

8 months? I think that's gonna raise an eyebrow or two along the way.

Re: Early build engines to late build cars
 

Is it an L72? The 385 hp engines were quite common so that would indeed be an oddity while the L72's were much rarer and done in fewer batches. I have seen LS6 engines built well before the car's build date so you never know. 8 months is quite a stretch however.

Re: Early build engines to late build cars
 

Who knows with an engine option that wasn't in high demand. If the casting date and build date are in line, the engine could have taken months to be used in Impala inventory. They may have wanted to clear out the L72 inventory for that model year and used it in a car. I wouldn't discount it completely.

Re: Early build engines to late build cars
 

I just bought an L72 from a 2nd week of Feb. Janesville SS427. The casting date is K 14 7 and the assembly date is 12 01.

Re: Early build engines to late build cars
 

Isn't July to November more like 5 months??

From conversations I've had with GM employees, they didn't necessarily rotate stock in the factories. Pallets of engines could've easily sat while new ones came in and got stacked up in front. 1 or a few could've gotten trapped in a corner.

Re: Early build engines to late build cars
 

Our 68 SS427 from Janesville was built 4th week of July and the engine was assembled January 11th so that did happen.

Re: Early build engines to late build cars
 

Rick this is my L36 1968 SS427 car 385 horsepower car

Re: Early build engines to late build cars
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: mssl72</div><div class="ubbcode-body">Isn't July to November more like 5 months?? </div></div>

It's actually 4 months, but we are talking about November 9 1967 to 1st week of July 1968, and that's darn close to 8 months.

But as per Warren's example above, which is over 6 months, it would appear to be possible.

Re: Early build engines to late build cars
 

Yes kind of odd but the engine is original to the car and I know the history of the car from day one my father in law was the 1st owner,I am number 4 but know all the past owners