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NAIRB 01-03-2004 02:23 PM

Junkyard Dog
 
I am going to build a junkyard dog engine, that is pieced together out of junk parts I have accumulated. I am going to list all of the junk pieces on here, and let you guys vote on what I should use. I will use this engine as mainly a decoration for my office, but I might dyno it. Here is a list of left over parts I have laying around:

BLOCKS: 1-350, 4 bolt main, good block but already .060 over.
1-327, 250 horse block 1965 with small journal, 1-.125" over 283 circa 1964, and 1 .060 over 283---excellent core, I also have a 511 casting 400 small block, but It's iffy weather I want to use it or not due to it's scarcity these days.

CRANKS: 283 small journal steel, 283 small journal cast, 327 small journal steel, 350 forged steel, 305 cast and 350 cast.

Rods: 5.7 small and large journal, 400 small block large journal.

Cylinder Heads: 493 open chamber iron, 993 open chamber iron, 896 283 "power pack" , 1 Dart Iron Eagle oddball, 1 World SR Oddball. I might be able to get different cores, but this is about it.

Intake Manifolds: Stock 283 "power pack", aluminum Edelbrock Torker, or factory cast iron non-egr Q-Jet.

This engine will probably get new pistons, rings, cam and lifters. Most of the rebuilding methods will be "OLD SCHOOL" so anyone on here could do the same thing.
I am taking ideas from you guys and will discuss cost and performance.

"OPERATORS ARE STANDING BY!"

poncho62 01-03-2004 02:27 PM

I did that many years ago with an L78 396. Threw a cast crank into it, with all the other stuff, used rings even. Had some blowby, but went like "Stink". Only kept it in the car until my LS6 454 was delivered to me. Personally, I liked the 396 better.

MI2600 01-03-2004 03:31 PM

How about a screaming 327 using the .125 over 283 block, a 327 crank, and those old power pack heads. If it comes "unstuck", you won't be out that much.

327amc 01-03-2004 05:20 PM

the 283 is what i would do. maybe machine down the 350 crank and stuff it in.

or destroke the 400. that would be cool. :smash: :smash: :smash: :smash: :smash: :smash: :smash: :smash:

trees 01-03-2004 06:19 PM

Nairb, I am a 327 man. I love the quick and high revs so I would use that 250 hp block which is no different from the 275, 300 , 350 or 375 HP versions. Then I would go with the 327 steel crank, and try to find another one of the Dart Iron Eagle to match (trade the oddball World). I would try to use big bearings to adapt the large journal rods on the small crank journals. That will take some searching, but I think they are available. Unless you can open up the Edelbrock Torquer for a better carb, I would do some polishing on the old CI Q Jet manifold. Next would be some good headers with at least 2.5 " collectors. You did not give any specs on the Oddball head but I would hope for 62-64 cc chambers and 2.02 Intake 1.60 exhaust valves. Then you could work in some flat tops and get by with 93 octane..

Trees

adtkart 01-03-2004 06:20 PM

Years ago, my son was racing go-karts. He blew up the last good engine that we had, and I didn't have time, or the $700, to have another one built for him. We took some parts that we had sitting in the garage from several old tiller engines and picked the ones that fit together the best and put a motor together. We were only interested in being in the race, not expecting to be competative against the high dolar motors. He finished 2nd that race, and almost won.

That really embarassed the competition!

TurboS10 01-03-2004 09:46 PM

The answer is clear to me. Take the 327 small journal block and set the small journal 283 steel crank in it with the small journal rods. Do the calculations I am too lazy to do and get the correct pistons for deck height. Voila.....a small journal 302(I think...if memory serves). Or you could go down to the junk yard and get a set of I-6 ford rods and stuff in it with some bearing inserts and a set of custom pistons. I think they are in the 6.125 range. BTW, I saw this done on a SBC in HRM a while back. Using the 4 inch bore, you might even find off the shelf pistons somewhere. It would have insane dwell at TDC and would really test the long rod theory. I realize the Ford rods are a little strange, but if it is a junkyard dog.......

Slap either of the after market heads on it and you would have an engine that would live happily at 7000 RPM on stock stuff. I think the open chamber heads would not give enough compression without pop up pistons, and the 283 power pack heads will not flow as well. If you do use the 283 heads, I would think a set of 1.94, 1.50 and a bowl blend would help.

I would use the Torker intake with a gasket match. I had one on a 350 that worked very nicely. Great low end for an open plenium intake.

To argue my Ford Rod and 302 combo........If you want a true junkyard dog, it must contain parts from more than one OEM. As for old school, most of the old timers about bust a nut every time you mention the 302 chevy.

Later,

Chris

Jag Daddy 01-03-2004 10:43 PM

Send me the 400 for a spare:D

Regards
Mark

crazy larry 01-03-2004 11:42 PM

very interesting.

i was thinking destroke the 400. forged 350 crank.

don't get me to lyin' on which heads..... edelbrock intake.


ford rods sounds like fun!!!:P

NAIRB 01-04-2004 06:19 AM

So far, it looks like everyone is leaning towards the little engines. I kind of had in mind of using the 350, since it is almost scrap anyway. I thought about giving it a good hone job, using the open chamber heads (heavily worked over with some type of dome piston to get the compression up. I was thinking this way because the 350 stuff is so cheap. However, I am listening to everyones opinion.
I want to do it as frugally as possible and get the most for the least (just like everyone else.)

TurboS10 01-04-2004 06:25 AM

You could still do the long Ford rods in the 350. I just mention this because you can get them very cheap, and you have the machine shop to make the needed modifications. The dome pistons and hogged out open chambers would probably build a respectable engine. If it was me, I would just not build a run of the mill engine.....as you can see from my latest creation.

I like the 400 best of all, but I would hate to see it setting around as decoration.

Chris

NAIRB 01-04-2004 10:47 AM

Quote:

Originally posted by TurboS10
The answer is clear to me. Take the 327 small journal block and set the small journal 283 steel crank in it with the small journal rods. Do the calculations I am too lazy to do and get the correct pistons for deck height. Voila.....a small journal 302(I think...if memory serves). Or you could go down to the junk yard and get a set of I-6 ford rods and stuff in it with some bearing inserts and a set of custom pistons. I think they are in the 6.125 range. BTW, I saw this done on a SBC in HRM a while back. Using the 4 inch bore, you might even find off the shelf pistons somewhere. It would have insane dwell at TDC and would really test the long rod theory. I realize the Ford rods are a little strange, but if it is a junkyard dog.......

Slap either of the after market heads on it and you would have an engine that would live happily at 7000 RPM on stock stuff. I think the open chamber heads would not give enough compression without pop up pistons, and the 283 power pack heads will not flow as well. If you do use the 283 heads, I would think a set of 1.94, 1.50 and a bowl blend would help.

I would use the Torker intake with a gasket match. I had one on a 350 that worked very nicely. Great low end for an open plenium intake.

To argue my Ford Rod and 302 combo........If you want a true junkyard dog, it must contain parts from more than one OEM. As for old school, most of the old timers about bust a nut every time you mention the 302 chevy.

Later,

Chris

Can you find affordable shelf pistons for the 302 Chevy with the long rods? I think mayb 302 pistons for 5.7 rods aren't that easy to come by anymore.

TurboS10 01-04-2004 08:14 PM

Quote:

Originally posted by NAIRB
Can you find affordable shelf pistons for the 302 Chevy with the long rods? I think mayb 302 pistons for 5.7 rods aren't that easy to come by anymore.
Never looked. If you have a parts catalog from some of the manufacturors, I would just hunt for 4 inch bore pistons. Depending on rod length on those ford pieces, a 327 piston might could be used. Or maybe a 350 piston. If you could get close, you might even fly cut a set. I may be getting to in depth for what you are wanted to do, but how much fun is it to go run of the mill? I can look around for some parts and info. if you are interested.

Chris

crazy larry 01-05-2004 01:06 AM

what i think.....
 
is you guy's ought to hook it up to a turbocharger.:mwink:

327amc 01-05-2004 01:12 AM

OK. just weld a couple of them together (making a v16) and get it over with.
:drool: :thumbup: :mwink:


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