Hot Rods 283 bored .060

Olds 305 rings work if the ring thickness for the top ring matches. I have a block bored .060 over - 12 to 1 pistons ... top ring requires .043 ... no rings - nowhere. Only option is to machine groove bigger and then the land to the second ring will be thin.

Joe

 

That's a good thread, thank you. Plenty of great info

 

202 intake heads will work on a 283. But they will not enhance performance. The cylinder wall shrouds them . 194,s will make as much power in a small bore small displacement engine.

 

my casting book reads 58-61 corvette or 58-62 p***enger car or truck

 

Yes! The better of the 283 blocks! Heavier cast. VIN code as my pics show, is FII07EB had some feedback and some misinformation on the web about that. Thing is motor has no serial code stamped near the VIN code. Either way, it's a Flint block with a corvette casting # could have been set aside as a factory replacement motor, too..
a 283 .060 over (292) with domed pistons, matched with the right head/ cam combo, should make a good running motor. Keep compression up I think is the main thing. I'm liking a set of 461 casting double humps I found online. Valve size not a problem and low cc might work well.

 

Has a date code of K20

 

I believe the casting number for the good 305 heads is a 416 or 601, if memory serves.

 

Those are what I've researched. Head selection may depend if this motor has a 283 or 327 crankshaft???

 

Have you measured the stroke? It's easy without the heads on. You could even do it with a tape measure. Let us know...

 

I thought about that good idea

 

Is the oil pan pulled off? If so, look inside the crankcase at the bottom of the cylinder bores. In 1961 and older 283's the crankcase casting was flat across the bottom of the cylinders. If the block is 1962 or newer, it will be dished.

This was changed when the 327's came out. 327 crankshafts have bigger counterweights and need the extra room for clearance. A 327 crank will not fit in a 1961 or older 283 block unless the counter weights are turned down.

 

No haven't had a chance to pull the pan yet. Hopefully this week! Sold a truck so there's an open bay at "the shop"
I appreciate the information. It will be helpful figuring this little motor out! Thanks again, I'll post about the engine as things unfold. Never know, someday when this an old thread, it might help another.

 

Ok anyone, thoughts... just purchased heads.
"461" casting 1965 date code. 1.94/1.50 valves
Bronze guides, umbrella stem seals, slight porting, dual spring good for 500 lift cam, etc... blah blah blah! Lol
Now, deciding on rocker ratios
Thoughts???

 

Sounds like a good set of heads for it. As far as rockers....Do you have any idea of what valve covers you want to use?

When using traditional valve covers such as finned Cal Customs, or finned Corvette valve covers, rocker arm clearance can be an issue. I have a set of Cal Customs on my 283 and went with stock ratio roller tip rockers. Full roller rockers wouldn't clear.

 

Nice looking setup! Is your motor bored out at all? Curious about your carb and cam setup, too?? Got any idea what compression your running?

 

Nice....brings back memories of my first hot rod motor with my dad.....
283
.060 over
11.5-1 compression
194 heads
Steel crank.....bottom end balanced.
Sig Erson cam.....477 lift/316 duration
Edelbrock intake and Holley 650 DP
......we had it decked......when we put putty in the cyl heads to check clearance we found that piston dome would barely strike spark plugs.....went with a short plug and thick head gasket and crossed our fingers.
Cam tried to **** out rocker studs....could not afford screw in studs, so we plugged all holes in the heads with rags and got moms vacuum.....kept vacuum nozzle right on the drill bit...drilled and pinned the studs right on the car.
You could turn the RPM's up to 7000 all day.
55 chevy with a M22 and olds rear end that was welded up.
It ran like a beast....wish I still had it !!!!
Thanks for bringing back that memory !!!

 

Hell, I even enjoyed your memory.
Small blocks rule!

 

Chamber cc ?

 

283's are great engines and pull hard if set up right! The 1.94 461's heads are a great match.
Once you drop the pan, see if it has a cast or forged crack. The width of the casting seam will tell you real quick which crank is in it. Look on line for a photo.

 

62cc

 

Thanks for sharing your old setup! That's close to what I have, just tinkering with ideas as far as cam and which intake to use. The block is a 60' Flint block. Heads are 65's Muncie is a 65', I have a long way to go with the car before the motor becomes real critical. Kinda building it along the way! Again, thanks for shoring your old build! If you recall that intake, let me know

 

Okay ,great .
BTW, did you pour them, or taking someone else's word?
Now, you're gonna have to pour the domes so you can figure out actual compression..(also deck check ,and gasket planned.
11.5 might sound great at the cruise night, but not so good , real world.
Also DP carbs came out,..when?

 

I'm an 'old timer', have stuff going, but am 'throwing together' a nice lo-mileage 283 with Grant rings, powr-pak heads, old General Kinetics cam, have various intakes. But LOVE your 2X2 home brewed intake!
Mind telling me if it's a fresh casting, or modified? (if modified, from what?)
I have the same rocker covers, in case I want to use 'fuelie rockers'...or large rollers.
I found some nice stainless headers on line...this engine can go into any of my street legal T's. Just an engine that fits everything. Just in case.

 

An original intake and AFB carb off the old 300 horse 327 would work pretty good on a mildly built 283, not the cheapest route though due to the restoration crowd and that well known auction site. Also would satisfy any "period correct" sensibilities too.

 

Even at that once you bore it and change the camshaft it is no longer a corvette motor.

I took a '59 283 ( complete motor) back around '03 or '04 and punched it .060. It would have cleaned up @ .030 but some idiot got too heavy handed with the ridge reamer. Ran a set of rebuilt power pack heads, and eddy performer and a 500 CFM cars, a Lunatti RV cam (LOL yea what actually is an RV cam). set it up @ 9.0:1. Had a very mild lope, ran well and pulled hard.

There is no way to guess where the now deceased original builder was headed with the OPs motor. I can say this that .060 over 283s were popular when I was a younger man. +.125 was cool to the bone but +,060 was more common and they seemed to run real well. I have seen a lot of good blocks punched .060 over the years,it was just a popular

 

This was in 1984.....or so.......right before I moved off to college.

 

Hope you don't mind an old pic.......dont want to hijack the thread.
lived out in the country...notice the bailing wire holding the radiator in place.....Damn I wish I had another 55 post with a 283 !!!

 

When trolling for compliments and bragging rights..... tell your friends you're running a hot Biscayne 283.
Always leaves them speechless.


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