S106408 = Not sure what this ID's ?? Not the Casting Number, that is located on the Flywheel Flange (on the back of the block)on the right side (driver's side)of the block

F09I6HD = Engine ID Code (see example below)"AKA" "Production Number"

Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code)
Another example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400)

Code Engine Plant Code Engine Plant
F Flint (Motor) S Saginaw Service
H Hydramatic T Tonawanda
K St. Catherines, Ontario V Flint (Engine)
(McKinnon Industries Canada)
M GM of Mexico

The "engine suffix code" varies by year of engine for example "HD" = (see below)
HD 1965 327 Powerglide, h/p
HD 1966 327 a/c, spec high perf. (350 Horse Power!)
HD 1969 350 tur hydro trans.

In the early years, they used LETTER for the Month so the "I" in the engine code = September as per this code chart: Month: A = Jan, B = Feb, C = Mar, D = Apr, E = May, F = Jun, G = July, H = Aug, I = Sep, J = Oct, K = Nov, L = Dec

So based on the engine identification code you have... Your engine is as follows. (unless the engine year is not 1966!)

Assembled in Flint, MI on the 9th day of September 1966? and was a 327 cubic inch small block equipped with Air Conditionaing and was a Special High Performance Engine rated at 350 HP.

Why not pull the valve covers and post the casting number from the heads, I would be curious to see if they are Double Hump 2.02/1.94's.

Also, if you can get to the back side of the block on the driver's side, find the BLOCK's casting Number, it should be one of these 327 engine numbers:
3782870, 379817, 3852174, 3858180, 3892657, 3814660, 3914678, 3932386, or 3955618.

I hope this helped you some...

Thanks!

Rico

Last edited by rico_bob; 04/11/2008 4:55 AM. Reason: aded 350 HP info

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