1969 COPO 427 engine

**Hawkeye** · #1 11-04-2008, 04:52 AM

I am currently looking at a 1969 COPO engine and I need help with some information. First is it possible to have a block cast date of January, head cast date of March, and an intake cast date of March, but the build date be April? It is a 512 block with an MQ code. What else should I look for to verify it's authenticity? Please help me with any info you can give me.

**Stefano** · #2 11-04-2008, 05:03 AM

Yes, is the answer to your question. Post some pics of the engine Pad Stamp for more help.

**Hawkeye** · #3 11-04-2008, 05:11 AM

I unfortunately I do not have a pic of the pad, but he info reads T0410MQ 19B375xxx. Hopefully this helps. Would a picture show anything in particular?

**Stefano** · #4 11-04-2008, 05:19 AM

Yes, It could show a lot of pertinent info.

**69 Post Sedan** · #5 11-04-2008, 05:27 AM

My MN COPO block was cast on Jan. 27 of '69 and was assembled on March 18 and went into a car that was built in the last week of May.

I thought the heads were cast 1-3 months before the block but not I'm sure.

**Hawkeye** · #6 11-04-2008, 05:33 AM

I will post a picture of the pad as soon as I get one, but please keep the info coming. This is very helpful.

**scuncio** · #7 11-04-2008, 05:35 AM

I saw that engine on Ebay. Wish I had picked it up for that price!

GenOne · #8 11-04-2008, 05:42 AM

For reference here is my MQ stamping - Block was cast on December 29, 68 with a assembly date of Jan 23, 69. Heads were L 30 8 - Dec 30, 68 (Monday),A 3 9 - Jan 3, 69 (Friday) with New Years in the middle

**Stefano** · #9 11-04-2008, 06:49 AM

Jeff,
Do you have any interest to sell that Yenko Chevelle Block?

GenOne · #10 11-04-2008, 07:19 AM

Stefano you already have an amazing 69 Yenko Chevelle

Jeff

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.