Its TBF512283 I know its not the origial engine or im pretty sure. But i know the last 6 digits are somthing about the number it was made. But whats the TBF thanks

 

6 are the sequential production unit numbers

it will match the last six of the vin code of the vehicle it was installed in at the factory

this is numbers match engines to vehicles 101

real basic stuff here'

good luck

 

1970 TBF 350 conv/fwd cab , mil 255 C - 10 , 20 , 30

1979 TBF 350 convcab , alt , fed L LS9 165 K - 10 , 15 , 20


definitely not origianl engine lol


fwd is forward control, that is a chevy step van, see them running aorund delivering food and parts for companies often


conv is conventional cab, that is a pickup truck, normal cab

it is most likely the nice high nickel and tin content block, harder block, very common from '69-79

a real keeper, congrats

 

Yea i found that too but the code on the back of the block by the bellhousing says its a 305 from 80-85 and the head code shows its a 1.84"/1.5" valves 53cc chambers for a 305 so im really confused.

Thansk the the replys tho they were quick and what i was lookin for but the numebers arnt all matchin up

code on back of block driver side by bellhousing is 14010201

Head codes are 14022601

 

thats odd, 80 up block if pass side oil stick

the stamping suffix code is not corect for 80-up



14010201 305 80-85 Pass, Malibu, Monte Carlo, Camaro, Nova

i cant explain the suffix stamping code problem

hmm

 

The 601 heads have 58cc chambers, not 53cc

 

I suspect the TBF is not an engine suffix code. Part of the VIN? T is a check digit, B is a year code, maybe 1981, and F is the factory where the car was made, maybe Flint? Then the sequence number for the car.

 

I've had a few sets of 601's and they measured 53 cc's when I did them. The other common 305 head with 1.84" intakes were 416's which had 58 cc heads.

Mark.

 

WRONG, they are most definatly 53cc. I cc'd mine right after I had them cleaned. 52-53cc in every chamber.

The block casting 201 is a common 305 casting, used in alot of cars, trucks, vans.

The picture is of a worked set of 601s, the chamber is 60 cc after un-shrouding.

 

youre right TBF is not the suffix

correct


suffix is ending not beginning i really dont know what the hell i was thinking there,

he told me on yahoo messenger earlier today that UAW is the suffix stamping code

i cant find it though

so i dunno

but we know for sure now that its an 80 to 85 305 anyways, so.,

 

TBF512283 is the partial VIN number. Look right above (closer to the head) this number on the pad. You should see another number with the suffix code at the end.

UAW is probably another Van engine from a 1981, I believe

1981 UAW 305 con. cab, a/t, A.I.R. H LE9

What are the rest of the numbers and what other parts are on it.

FWIW, since you are dealing with a similar engine to my stock engine, the original block out of my 1983 G20 had suffix code K1012UCK

1983 UCK 305 conv.cab H LE9

CD4102926 is also cast into it (partial VIN)

14010203- 4 bolt main- 1980-1986 305

3941182- Forged 3.48" stroke crank factory balanced for a 305

X-rod castings

Flattop pistons with 4 valve reliefs.

Large 8" 350 style harmonic balancer

14022601- 53 cc heads, 1.84/1.50" valves

14057056- cast-iron 4 bbl manifold with EGR

17083226- 4 bbl non CCC Q-Jet with electric choke, 1983 Chevy truck/van

 

Whoa, a four bolt main 305 with the big balancer, that's a new one on me. Never know what you'll find in a Chevy engine. Flat top pistons with very small chamber heads. Interesting.

 

Chevy Engine Codes

This is a site for engine code stamping. The code should have a letter designating engine build plant, 4 numbers designating month and day, and the 3 letter suffix code. Then, if a patial vin was stamped into the block, I've seen them just below this. It will look like this: T0412CKM (CKM being the suffix code). Check again, it may be real faint, or a picture of the block where the partial vin is. Give us all a look. Then when you find the suffix code you can use this site to find year and application.

 

yeah the T is the foundry location digit
the two letters after that digit are supposed to be numbers.,