The Stovebolt Site Forums The Shop Area Engine Shop 235 Engine serial Number help

Engine block code 3837004
Date code CONV 1 D1057
Serial Number T4I5A
Head casting number 3836848

Can't seem to find this serial # anywhere ?? That's a T4I5A not a # one. Got it down to a 55-57 235 engine. Any way to tell if its a car or truck motor ?? Thanks for any help !!

Serial Number T415A
T = Tonawanda plant
4 = April
15 = 15th
A = 1957 regular car engine (manual transmission) - hydraulic lifters

http://chevy.oldcarmanualproject.com/chevyresto/57011.htm

3837004, 55-57 235 engine

CONV 1 = Conveyor

D 10 57, Should only be 1 letter and 3 digits,

D 10 7
A = Jan.
B = Feb.
C = Mar.
D = April 10, 195(7)
E = May
F = June
G = July
H = Aug
I = Sept.
J = Oct.
K = Nov.
L = Dec.

T4I5A
T = Tonawanda, NY . Engine assembly plant
4 = 4th month in year April
I5= Fifteenth Day of month
A = regular car engine

3836848 = 1956 235 cubic inch Head casting number

Source
GM resto packs Click show

Thanks for the info. I guess what was throwing me off is the serial # is clearly marked with an i not the # 1 Guess that was a mistake.

On your engine block cast date code D1057.
Is there 4 digits or 3 ?

What is interesting is your engine block was cast,
D 10 7
April 10, 1957
and 5 days later it was stamped
T415A
April 15, 1957
You could say it took GM 5 days to cast and assemble your engine.

It is common to see the letter i (eye) used for the number 1 (one).
Factory worker must of only been issued the letter i (eye) die stamp.

Clearly 4 digits D 10 57

I'm going to relocate the water pump using pre66Dave's kit. I'm looking to see if it's a car or truck engine. With the A in the serial # should be car ?? I also have another 235 engine with the codes Block # 3764476 Date D279 and a serial # F504B Would this be a truck engine ?? Is the any other way to identify car from truck ?? The water pump kit suggest a truck harmonic dampner. Thanks for the help.

3764476 = 1958-62, 235
D 27 9 = April 27, 1959
F504B = Flint, Michigan, May 4th, Regular engine with Powerglide trans.
F = Flint, Michigan, engine assembly plant
5 = May
04 = 4th day
B = Regular engine with Powerglide trans.

Both engines you have went into Chevrolet Cars.
As far as I know the Truck & Car engine blocks are the same.
I think the only way to tell the difference between a Car & truck engine block, is the hand stamped engine serial number.
It is located to the left of the distributor on a flat machined boss.
And whatever is attached to the engine.
Example would be the car breather tube is S shaped to go around side engine mount.
The truck breather tube is almost straight. (No side engine mount)

Are the engine blocks different due to hydraulic vs solid lifters? Or are they interchangeable?

Also, I would like sometime to get clarification maybe from Dave about this harmonic balancer size issue. The rpm of the fan is the issue, but I am wondering if that is a severe issue, a likely okay issue, or what?

Engines that are set-up for hydraulic lifters have an extra oil galley drilled the full length of the engine to supply oil to them.
A engine that is drilled for supplying oil to hydraulic lifters can run either hydraulic or solid lifters. An engine that is not drilled can only run solids(although I have devised a way to use hydraulic lifters in my test engine that is not drilled).
The main issue with balancer pulley diameter is fan speed. If the fan is over speed-ed, it can lead to fan cracking/failure.

Thanks Dave, Both engines I have are 6 3/4 pulley size 1957 and 1959 235's I'm keeping the stock driveline in the truck for now. Maybe the 3:55 gear set later. And will any 216 balancer work ?? Thanks

My blog post about my water pump adapter gives info on which balancers will work and why.