Decoding the 1972 Corvette 454 LS5 Engine Casting Numbers 

Good morning VetteSource, I enjoyed this video on this Corvette and the 454. In 1982 I purchased a 1982 Corvette and enjoyed it for many years. I currently own a 1999 Corvette that has needed a TLC for sure. I hope to own a 1968-1972 in the coming years. (I need to hurry up since I am in my late 60's hahaha...) I have seen a couple of your videos and plan to watch more today. I have subscribed and will have to check out more especially the C5's. Thanks for being here for us Corvette owners my friend. Take care and be well.

One fascinating thing to me, and I wish there was more info on, is which iron ore carrier may of hauled the iron ore for these parts from, where did it come from? It would be cool to know my '71 Chevlle has metal that the Edmund Fitzgerald hauled, or even the Arthur M. Anderson. Tonawanda, near Buffalo, cool, I was born in Rochester, NY, that makes them from more near home, though my car was put together in Texas, the rear end though was cast in Buffalo. I tell you what else would be fascinating, if someone was able to talk to people who worked there during there years and get some of there thoughts and opinions on things, times then as far as cars were concerned.

Hey, I have a block that I am trying to figure out what it was probably used in. Casting number 3916321, Cast Date J167, Pad Stamp CE854859, Starter stamp T117. Four bolt mains, Pass Hi Perf 1X. It is standard bore, 427.

Had one of these give to me which I promptly built and installed in my 69 Chevy pickup. Wow 😳 tires would smoke if you floored it at any speed up to 35mph.

kinda true on build times. However, my 68 L79 Corvette was ordered 6/10/68 but the date of production wasn't until 07/26/1968 (that's straight from the build sheet). engine cast date is (F) (06)/11/68 . So yes you can have a wide time frame from order date and production date. Gm had motors sitting for 3-6 months, that's why NCRS allows up to 6 months.

Perfect video as always. I tried to make a couple video's but I don't speak as smooth and correctly as you. Keep em coming and I will be watching the Yellow Formula video next.

396 had a bore of about 4.125, the 427 and 454 had a 4.250 bore. Back then, long before the LS , there was NOTHING like a big block and a four speed

I thought 71 stingray had 425hp, thought it was the same engine from the 70 chevelle 450hp but a bit lower hp.? Just asking cause you are the man, new sub here.

So doesn’t matter from 1970 to 1974 on a 454ci motor the block is all the same from 70 to 74 so what is the difference in them and how can you make the LS4 or LS5 into an LS6 454 is what I’m asking

What is needed to convert a LS5 to LS6 corvette engine so it would be identical?

What does C6Z mean

Is this a 4 bolt main

Am i Right in saying it’s low compression and not a very powerful engine, not very desirable, good for matching numbers but that’s it?

What is a 72 crr 454 is it a425 h ls6

Were you ever a mechanic? You're not a "know it all", in a bad way. You're just a guy who knows everything. Lol.