3946074 Aluminum head question
 

Where were these heads first used? What is the earliest casting dates?
Thank you, James

Re: 3946074 Aluminum head question
 

They were first used on the 69 L88 and ZL1 engines. I imagine the earliest dates you could expect to see would be late 68. The earliest I can remember seeing are december 68.


Jason

Re: 3946074 Aluminum head question
 

Thanks Jason. There is a guy claiming to have a April of 68 one. The 8 may be a 9. I haven't seen the head.
James