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Old 01-17-2019, 09:04 PM   #26
mattfranklin
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Re: Building my 283

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Think I'm going to use motor machine, but would love suggestions.
I like Morgan's Machine and Marine in Walnut Creek. But I know that's a bit of a drive for you. He does super high quality work, but does cost a little more. He can be cantankerous, but I like him. He has a passion for the work. Hates the internet. Real old school and a good guy. He prefers to do the whole thing, but will work with you on doing parts of of it if he thinks you're capable of assembling things. I'm pretty familiar with assembly but he really wanted to do the stem seals for me to make sure I wouldn't screw it up.

He used to race top fuel and hydroplane. Racers seek him out. He does a lot of exotic stuff for restorers and car dealers. He is more expensive and you get what you pay for. If you try to deal him down on price, he'll probably kick you out of the shop. But he's my first choice for high quality work.
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Old 01-18-2019, 10:00 PM   #27
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Re: Building my 283

I can only tell you my about my 283 and it has been very good to me. It's bored out to 292 cu.in. with ported and polished 416 H.O heads from a 305. They have bigger valves than the power packs and are unleaded fuel friendly. My intake is a Performer EPS with a 500 cfm Eddy carb (leaned out 2 stages in the cruise mode.) The cam is a Melling MTC-1. It's basically the Performer grind with a lower price tag. The same basic grind gets even more economical when you buy it as a Summit 1102. I did use roller rockers, people say the don't add much power over stock, but my old ones were worn anyhow so i just bought 'em. I also bought a new high performance distributor which has a bit lighter springs and a bit hotter coil. It also has an adjustable vacum advance. My timing chain is a cloyes double roller and I run a clutch fan to help reduce drag. (Engine masters had an eye opening episode about how much h.p your cooling fan can steal from the motor.).
I currently use a Saginaw 4 speed with a 3.5 first gear. Its mated to a 2.76 rear diff. They work well together providing a decent launch ratio of 9.6 but the gear spread is a bit awkward. 1st and 2nd are a bit too close, 3rd is a bigger drop and 4th is like overdrive with the 2.76 rear.
I feel gearing plays an equal role to engine mods for the little 283. Obviously the launch ratio is important and I wouldn't want that to be below the low 9's, but I'm also starting to realize that a more evenly spaced drop between gears ceartinly would help keep the motor in the sweet spot under acceleration. Soon I plan a swap to a 3.08 and a muncie m22z.
Sorry for the novel but y'know, my 2 cents worth turned into a nickel I guess.

Last edited by AcampoDave; 01-18-2019 at 10:06 PM.
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Old 01-19-2019, 01:25 AM   #28
OL65GMC
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Re: Building my 283

I am surprised with all the great responses and info I'm getting here. Awsome.
Quick update, dropped of engine at machine shop today. Should hear from then middle of next week on what shape everything is in and how far I have to go ($$) with the machining process.
Will definitely put the 1102 cam on the list along with the lunati 06103, and maybe the l79 grind. Read in a few threads about Northern auto kits and selecting the cam closest to what your looking for off the upgrade list. Anyone have any opinions on kits from them?
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Old 01-24-2019, 02:15 AM   #29
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Re: Building my 283

I'm going much smaller on cam in my 307 than what you may use it seems.
I'm going to use the smallest Voodoo and worried it may be too much. I have 4.10 gears and a TH400, and should end up around 10.5-1 compression too.

I will use 1.6 rockers at least on the intake side, you need that with all small cams. The slightly more modern heads from a 305 are great, I'm told, for a 283 or 307, and I do have some to use too. They can get the compression up when used correctly and mine will get milled (likely angle milled) to reach approx 52cc for this project.

I'm shooting for all the torque the little thang can make @ lower rpm, and best mileage when driven easily. I'd do the same with a 283 but probably use a smaller cam too !
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Old 01-24-2019, 11:06 AM   #30
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Re: Building my 283

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I'm going much smaller on cam in my 307 than what you may use it seems.
I'm going to use the smallest Voodoo and worried it may be too much. I have 4.10 gears and a TH400, and should end up around 10.5-1 compression too.

I will use 1.6 rockers at least on the intake side, you need that with all small cams. The slightly more modern heads from a 305 are great, I'm told, for a 283 or 307, and I do have some to use too. They can get the compression up when used correctly and mine will get milled (likely angle milled) to reach approx 52cc for this project.

I'm shooting for all the torque the little thang can make @ lower rpm, and best mileage when driven easily. I'd do the same with a 283 but probably use a smaller cam too !
Does the extra weight and required power to operate a turbo 400 vs. a lighter duty trans concern you?
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Old 01-24-2019, 12:12 PM   #31
68post
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Re: Building my 283

Only slightly, but that's the original trans in this C20.
If it was a C/K 10 I'd use a 700R4.
The truck is being painted,(I hope - hasn't been in my driveway for a mth), and needs a new trans.
My neighbor has a rebuilt TH400 and wants my'59 283 that's in the trk now, and I have a 307 that my buddy left here years ago and it's in fine shape (shortblock now). This is a kind of experiment.
I'll be using swirl port 305 heads (preferred) unless mine are too bad - if so I'll buy 305 vortecs or use my HO heads. High compression and attention to detail and tricks should make it a runner, and the 4.10 gears will help in the only way they can.

If I don't like the tiny-tot engine then someone will buy it and I'll install either a 350 or 400 (have both). But it won't be driven much, at least at for awhile, and will be mostly empty about 75% of the time.
Thinking of a few yrs down the road and I may want an inexpensive,easy to maintain, and efficient truck in my semi-retirement.

Sorry for the thread interruption !
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Old 02-06-2019, 08:50 AM   #32
OL65GMC
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Re: Building my 283

Udpade on my engine rebuild progress... Machine shop tanked and magnafluxed block and heads and checked everything out. That's as far as he got in 3 weeks. Couldn't get him to give me numbers on what it would cost or what he recommended for work. Guess he's too busy with 500in. Blower motors. I went and got it and took it to another shop. The second shop owner looked over the block and heads with me when I showed up and then called me the next morning with the results of his inspection with the micrometer. If I can rant for just a second... I'm a heavy equipment/big truck mechanic by trade, I deal with service shops and dealerships everyday. The most frustrating issue I have is with shops that tear down your parts then move on to the next bigger money or better customers project, holding your project hostage putting it on the back burner because he knows its such a pain in the ass to come and take your already started project away from them. I might be an asshole but that's not acceptable to me. Im not going to bad talk the shop publicly but I did embarrass him in front of his employees and customers when I want and got my parts from him. Moral of the story is if your paying money for the work, holding the shop to their word on time frame and reasonable customer service is not out of line. Ok sorry about that soapbox speech.
Back to the engine..
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Old 02-06-2019, 09:44 AM   #33
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Re: Building my 283

I agree. Hope you will have a smoother path now.
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Old 02-06-2019, 10:38 AM   #34
AcampoDave
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Re: Building my 283

Treatment like that is certainly a driving factor for the popularity of crate engines. Potential machine shop customers who continually hear these stories decide that it simply isn't worth the hassle. As a small buisness, it's nearly impossible to compete with the mega retailers on price. Therefore, all that's left to attract new customers is service, reputation and providing a unique product. Too many bad apples in a trade eventually stereotypes the entire industry. I see it frequently in my own profession.
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