Hot Rods 283 bored .060

Curious to see if anyone has any thoughts about a 283 motor I recently acquired.
Chevy casting #3756519
Date code: K20
VIN code on front p***enger side is stamped: FII07EB
The motor has been bored .060, or at least that is what is stamped on the domed(with valve reliefs) pistons.
Motor is backed by what I believe to be a 1965 Muncie 4 speed ******.
****** casting # 383125 (with pat. number)
Tail housing casting # 3857584
****** main plate has casting # 3831707
The previous owner has p***ed away and it has been some time since we had talked. I'm doing a frame off 39' Chevy Coupe retro mod I guess I'd call it. Just curious to hear anyone's thoughts on where he was trying to go with the engine.. not sure what I want to do! Lol
I have a new Eddie performer intake and a Holley 650 carb, also a compcam 272 cam. Any of this stuff right for what I presume to be the beginning of a serious little street motor! Thanks for any advice.

 

Yeah! Sounds like a real runner. Do you have any pictures? What heads?

 

Many years ago I ran a 283 bored .060 with dual quads in a 55 chevy sedan. Don't recall the cam but had a nice little "whump, whump" at idle. Ran through a 3 speed to 411 gears. Always had trouble keeping the quads tuned so switched back and forth with a single four. Sweet little engine. Ran it hard. It was a real contender.

 

Head selection is where I'm hung up on right now. I'd like to go with something pre vortec. Trying to keep a certain look..
Yes I do have a few pictures!

 

Is it missing the cylinder heads? If so, a set of 300 hp. 327 heads, with the 1.94 intakes would work well and have an era correct look. These have the same camel hump markings as the 2.02 Fuel Injection heads and do not have any holes for front mount accessories. Don't think that 2.02 intakes will clear the cylinder walls of a 283 with a .060 overbore.

 

Some pictures! Anybody with knowledge of these casting numbers? At first I thought it may by out of a corvette, but probably a 61' Impala.

 

Any particular casting #s you would recommend?

 

I don't really go by the casting numbers. I've always looked at the markings on the ends of the heads. However, these are found on the earlier heads, (pre 1968), without accessory bolt holes.



This is a Camel Hump marking. Notice the two rounded humps which is where the name comes from. This marking is used on a few different casting numbers, and with higher performance engines....300 HP 327's, 340 HP 327's, 350 HP 327's and 365 HP 327's. May have been used on other performance small blocks, as well.



This is the marking for Power Pack heads. The name is from a 283 with a factory 4 bbl. carb. which was called a Power Pack 283. However, they were also used on the later 283's with 2 bbl. carbs.






As far as detailed info on small blocks, this is an EXCELLENT book. It has casting numbers, and lots of other info in it.

 

Date code should have 1 more digit (Nov 20, ****)
EB 1957 283 hi lift cam

 

They also came on '67 275HP 327's. Head casting number ended with 462.

 

Almost all 283s in NHRA raceing were the allowable .060 over.

 

That's part of the unusual thing about this block. Date code is K20. So, Nov,2,1960. Evidently corvette blocks only had the single number for the year. Actually everything lines up as a corvette motor. Only caveat is the VIN code(FII07EB) doesn't indicate corvette.
Also, there is no serial number, which is normally found with the VIN code.

 

I have a picture I think.. of that date casting.

 

Keep in mind, a 283 is a 283. As far as the block goes, there won't be any real hp advantage, even if it is a Corvettte. Just bragging rights.

 

Really just trying to identify the damn thing. Still need to look at the internals, with the .060 over bore, I'm guessing they are not stock.
Looking at heads also... "601" 305 heads or look more at a set of "461" 327 heads.
Decisions, decisions..!!!!!

 

Just put together a '62 283 std bore. Steel crank, stock rotating ***embly. Power pac heads milled .030, .015 shim head gaskets. Home built two two intake. An XE268H cam, split pattern cam. It's crisp and lively, as one would expect the bottom is no top fueler, but it comes on strong! It's in a 1995# modified, with a 2:20 low Muncie, and 3:50 gear. It replaced a low compression 350 with a 292 comp cam, it would whoop the hell outta the 350. It's got a crackely idle like an old vette, it sounds more right than the slobbery 292 cam in the old motor. Not to gush, but I couldn't be more thrilled with it, and when someone asks I don't have to say "it's a 350" and watch peoples eyes glaze over. Everyone always has a 283 story, and it's great to hear old stories shared by folks that ran them, and loved them. I'm sure I'd sing a different song if the car was heavier, but that's the fun of having a big go-kart!

 

Good looking motor! I agree about "it's a 350" this motor is going in a 39' Chevy Coupe intended for play. Not building a dragster, just looking at different ways to set up the motor. Really I have everything to start getting it back together. Lacking heads! Lol

 

GettingrRings are going to be the problem .. Joe

 

Back in the day I had a re-man 283 from Sears..........it was bored .125 (1960 or earlier block) it was in a 4 spd. 1961 Corvette and was really stout for it's size.

 

Go a little further in explaining what you mean. I didn't realize that would be an issue.
All help appreciated!

 

Or in this case a 292, but I think I know what you are saying.. not a torque monster.
With all factors considered I'd like to see
350+ hp. Should be attainable with the parts I have and the right set of heads!

 

Rock Auto Sealed Power rings .060 over $46.79 regular stock inventory.

No apparent problem

 

You had me worried for a moment! Lol

 

A picture of those "domed" pistons would help us understand just what you have.
350 h.p. out of a low compression 283 ain't gonna happen (without a blower).

 

Might have a better pic somewhere, but this should hopefully shed some light. Anyone know what the "399" on the cylinder head means? Thanks folks, I'm learning..

 

the 305 heads will get you more compresson than the 461 heads on the 283

 

A little discussion I found.
http://www.corvetteforum.com/forums/c1-and-c2-corvettes/2500459-283-specs-needed.html

 

I've been researching the better 305 heads. By better I mean, GM 58-60 cc 1.94/1.50 valves, a head that meets these specs is what I've looked for so far. And, yes, I need fairly high compression for a motor like this.