Hi, I have just bought a 283 eng (yeah i know
it is not a third gen, he,he it is sitting on a stand in the garage next to my 92 GTA
hough) I have the Block casting # 3849582
cylinder heads #3884520 both left&right
And the # from the front of the block pass
side cylinder head # 776542208
Can any one tell me what year?/ vehicle it
came from Thanks GTA......

 

Not sure about the 3849582 the closest number I foun to that is 3849852

3849852 ci 283 year 57-66 2 bolt

anyway check out www.mortec.com

 

Just to add here are your heads information

3884520 year 62-67 327

 

Those numbers don't ring a bell with me. The 283 came out in the 1957 model year and ended in the 1967 model year.

The '57 model year block doesn't have motor mount bolt holes on the sides of the block. Most of the early blocks used "downdraft" tubes, located near the distributor, as a sort of positive crankcase ventilation system. The '59 and earlier heads had staggered valve cover bolt holes.

The mid '62 and later blocks are the good ones. These will go out to a 4" bore (and slightly more) to make a 302. Stock bore is 3.875. Or if you cut down the mains on a 350 crank, you can make a 350, or bigger. How about a 383-283?

On the end of the heads, is there a flat rectangle or a triangle on top of a rectangle?

As far as the year of the parts, look for a stamped code, similar to, but not necessarily, C 11 3.

This particular code would be March 11, 1963 as the casting date.

A=January, B=February, C=March, etc.

11=date of month.

3 =(in this case) 1963, 2=1962, 6='66 etc.

7 could be 1957 or 1967 but a '57 model year block wouldn't have the side motor mounts until later in the year when the 1958 cars came out. Usually those blocks would have a G or H (July or August thru the end of the year) or later.

The stock crank would (99.9% of the time) be a steel crank. You like RPMs? It can turn 'em.

Worst thing about a 283 is the small rod bolts, but that is easy to take care of in the aftermarket.

I've had several 283s (and their derivitives) and they are fun engines. Just put it in a light-weight car (early Nova or gutted early Camaro), bunch of gear in the rear, decent cam (a mild cam in a 350 acts really big in a 283), decent heads, headers and go Viper hunting.

With a light enough car, you could go even motorcycle hunting. (Straights only!!!)
jms

 

jms, thanks for the info the cyl heads do have the rectangle with the triangle on top
is this a good head as far as 283's go??
By the way it is going into a 67 GMC pickup
with 4spd and 3.73gear should be fun !!!
Any one else with info???? Thanks GTA......

 

Those heads were known as "Power Pack" heads. They were good in their day but not very well thought of now. A restorer may have a use for them but there are much better heads availble now. I would even consider a 305 HO head (or the 305 Vortec head) if you stay at the stock bore. Since the bore of the 283 is already bigger than a 305, you could easily put 1.94 and 1.6 valves in for a little more flow.
jms