qtlow

Sounds like you got it narrowed down. Going off your pictures I was going to say the heads are pre 1968 because of no accessory holes drilled in them.
Also looking at the picture of the back of the block I see what look like a road draft tube.
I'm not sure when they stopped using road draft ventilation but I think it could date this motor back to the 50's.

69cvette

you think this could be a '57 283? it just looks more like a mid 60's 283 to me

restoman1

No, that can't be right either. The suffix code will have 4 numbers for the month and day of the year. T would be Tonawanda, NY, where the engine was assembled, but 115 doesn't fit the format. It could be T0115GF or T1105GF, but not T115GF.

Check the numbers again, or better yet, post a good picture of the pad.

And Id'ing the heads isn't really going to help since most small block heads fit on most small block blocks! However, your heads are post 1959 (valve cover bolts straight accross from each other), and pre 1969 (like gtlow said, no accessory bolt holes.)

Ed

69cvette

edit its TIII5GF

sorry that's my bad

restoman1

Ok, now you're on the right track. Like you posted before:

GF 1955-56 265 162 MT B, A/C
GF 1957 283 250 TG B, FI
GF 1965-67 283 195 PG

Ed

anips

the raised rectangle with triangle marking on the R.F. head tells me its possibley 58 &up power pak/57-60 F.I., 9.25 C.R., 1.72/1.50 valves.

69cvette

well i do know that's its a later 283, because i have side engine mounts on the car, they didn't exist til 1958 so its not a '57 283

anips

from memory they dropped the R.T. and went with the little vent tube housing that connected with a hose to a PVC valve on 283-327 up to the mid 60's

Easy Mike

What's all the boo-hiss about the 283? They fine little engines; GM made a ga-zillion of them. They were all you could get in a Corvette for 57-61. Yours has a pair of power-pak heads.

69cvette

I was plannin on hot rodding my car, with the intentions of re-building the "327" that I though it was. and 195 horsepower 283 does not even come close to the engine i thought it was, and doesn't have the potential a 327 or 350 etc would have, i mean they can scream, sound mean and run good but not as quick as a built 327 especially a 350 and so on. plus this car, doesn't scream 195 HP, it says, try and keep up in my opinion.

anips

looks great, all my tri-5's were 2dr post cars

Indiancreek

Nice looking car. I'd like to have a 55 or 57. I think I'll look around for one. Took my driving test in a 57.
Engine wise, you should be able to get a horse per inch out of it without getting to crazy.

78 silver 78

I once had a '57 vette w/283 block that put out almost 500hp. It can be done.

69cvette

well what I'm looking to do I want the car to do at most mid to high 12's in the 1/4, i just can't see a 283 reliably being able to pull my car through the 1/4 without being very street able.

78 silver 78

power cost money.Back in the '60's i had a'56 chevy with a 283 bored out to 301 w/2x4's, 4 speed,and 456 rear,Turned high 12's in the 1/4 mile. My '57 vette, bored to 292, 12 1/2 -1 compression. 30-30 cam,202 heads, 2/4's ,4 speed, 411 rear. It can be done old school.

69cvette

yeah but honestly, could you still drive it everyday when its the summer time to cruises car shows, etc without it being too hot or something?

Indiancreek

Same stroke as the 302 Z28 just a little a little smaller bore. Just keep the RPMs up. It's just a challange. The challange is whaat makes it interesting. Anyone with enough money in their pocket can buy a 12 second engine delivered to their door.
To make a 12 second car within certain restrictions would be satisfying. Like nascar, make the fastest car you can within a cu. in. restriction.
Without size limits, you can put together a poor combination and get to the 12s. Get there within 283 cu. in. your combination needs to be spot on. Or boost of one kind or another.

burgessdg

Corvette? Forum...

Indiancreek

After this disscussion I decided to try something. I had the guy who grinds my cranks for me turn down a 350 3.48 stroke crank to small journal and see what comes of a stroked 283. I think around a 333 cu in result. Pistons will be a little expensive, but I'm curious as to the result. I got the crank back last week.
If it works out, I have a couple Nova blocks I may convert to stroker and test the market a little.

slickdaddy1

do like i did tear the bastard out and put a 383/500 in it and enjoy