Hi.
I have a chevy engine including the heads and am at a loss as to the year of manufacture.
The block on your drivers side near the bell housing has (3GM) and underneath are the numbers (3970010) on the passenger’s side is the number (235),
The heads under the rocker cover driver’s side looks like this.
01 63417869 GM11 HECHO EN
MEXICO
And on the passengers side like this.
01 82417369 GM12 HECHO EN
MEXICO.
I hope this makes sense to you. I will be most grateful for some information as I am fitting this lump into an AC Cobra soon.
Thanks David Miller. (England UK)
