This is the number stamped on the deck pad off the block in front of the right head.

It's a 327 and the deck # is T052IHAR.

I think the T=Towanda 05= May and from there i'm lost.Nothing else jives with the info I have.

The other numbers are
CAST 3858180 = 1964-67 327 bolt main
HEADS 3890462 =1966-67 Camel hump 302/327/350 2.02/1.6 valves 64cc.
Intake 3890490 =1966-67 Aluminum 350Hp Hi-rise

Is this info correct?

I ask because I think I may list this engine for sale and want to get the correct information on it.

I need to verify this info and find out about the deck pad numbers.....

Any idea what this should sell for? It was pulled from my car in good running non-smoking condition,complete except for carb and fuel pump.
Swapped out for a BB.

Thanks for any help

Also the date on the heads are
E-18-6 and E-4-6 which I think = May 18th and 4th
1966.

T - Tonawanda Engine
05 - May
21 - Day of month, 1 and I are used interchangeably

HAR is a 1966 Impala, Biscayne or BelAire 327-275 hp RPO L30 with a 4-bbl carb.

Common 327 used in 1966 Chevy full size cars.

As for value, hard to say. Its only worth what someone is willing to pay.

Thanks man,
That "I" is what was throwing me off.Can you tell if that intake came with that engine? I couldn't find any kind of date code on that.

Thanks

Came with a cast iron QJet,..The "R" is for Rochester carb.

Rene
66_Malibu

Chevrolet SS Muscle Car Red Book shows.........
HA Code used in 1965-327/250hp 1966-327/275hp both of these with a 3 or 4 speed, 1967-327/275hp 4speed only, 1968-327/250hp 3 or 4 speed.


Rocky