C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Nov 6, 2009 | 07:32 PM
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so I need a new engine for my 79 vette and I was looking at gm's crate 350's or a rebuilt 350 on ebay from phoenix motors for around the same price with an intake manifold,more HP and a 1 year warranty. I know the GM 290hp crate motor sounds good but Its $1900 without shipping,tax,or an intake manifold. the phoenix motors rebuilt is that price shipped so what do you guys think or what are some other options I have? I am looking to spend around 2k for the motor
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Old Nov 6, 2009 | 08:22 PM
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Warning......Do not buy from T&L Engines.......
Buy local or from GM. As it was put to me, buy from some one that you can poke with a stick.
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Old Nov 6, 2009 | 09:57 PM
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Scoggin Dickey usually has a special around Thanksgiving offering free shipping on any GM crate engine. I got my ZZ4 from them for zero shipping charges. Subscribe to their newsletter and you'll get a notification.
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Old Nov 6, 2009 | 10:38 PM
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I just got a new crate motor from Pace performance. Its a 350/300HP and came with a new Edelbrock manifold. It was around $1,900 plus delivery. Its now sitting in my shed waiting for spring to get here.
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Old Nov 6, 2009 | 10:50 PM
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Buy local, or get a machine shop to build one for you. Go to the local track and ask more than one guy who build reliable motors. If you must buy a crate go to your local GM dealer and get a GM crate, I hear the Mexicans are getting pretty good at putting them together these days. At least you get the "it's your fault" warranty
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Old Nov 6, 2009 | 11:05 PM
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We have put in a lot of GM crates (25+) with ZERO issues, Stay away from the bay, Go GM crate or local builder
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Old Nov 7, 2009 | 02:11 AM
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That 290 GM Crate is a Dog. Rated net, a guy, here on this forum, installed one in his '81, replacing the stock motor. his 1/4 mile actually went UP 1.5 seconds. better to get a stout, rebuilt 4 bolt main short, and some after market $1k aluminum heads,, choose your own cam. that will be the medicine!
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Old Nov 7, 2009 | 03:31 AM
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the pace performance motor seems pretty good. http://paceperformance.com/index.asp...&ProdID=264227
I do have my l-82 engine block still but wont it cost more than 2 grand to rebuild it and get new heads?
if i buy a new engine i can get a few hundred bucks for the block I have
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Old Nov 7, 2009 | 06:39 AM
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Originally Posted by socal79
the pace performance motor seems pretty good. http://paceperformance.com/index.asp...&ProdID=264227
I do have my l-82 engine block still but wont it cost more than 2 grand to rebuild it and get new heads?
if i buy a new engine i can get a few hundred bucks for the block I have
That thing is a Dog, with some black paint and a nice, aftermarket intake to fool the unschooled. 76cc heads? 190 intake valves? 8.5:1 comp ratio, it's 1976 all ove again. Short block on it is probably fine,, it's all in the heads. The state of the art right now is aluminum,, 2.02 intake, 1.60 exhaust, about 850-1k. With 64cc chambers for 9.2-9.5 comp ratio, for true 300+hp, 400ft/lb torque, with a 100lb weight savings over stock. see my build. I don't recommend reusing the short like i did, that's why i recommended you getting a new short block. but you can see what works. C. Plus, pulling and saving your original #'s matching motor is a good idea.

http://forums.corvetteforum.com/c3-t...46833-why.html
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Old Nov 7, 2009 | 08:26 AM
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Originally Posted by RunningMan373
That thing is a Dog, with some black paint and a nice, aftermarket intake to fool the unschooled. 76cc heads? 190 intake valves?

http://forums.corvetteforum.com/c3-t...46833-why.html
When did GM change their valve size?
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Old Nov 7, 2009 | 08:58 AM
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I got my crate from Carolina Machine Engines. Just a bunch of Carolina boys that build a lot of race motors over the years and know what they are doing. Mine is a 350/400hp motor. It seems to be holding up after two years. It ran me right at $2,900 plus shipping. Jegs or Summit are great places to look too.
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Old Nov 7, 2009 | 02:30 PM
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how about one like this?
http://cgi.ebay.com/ebaymotors/CHEVY...item19b76ac848

I would like to get aluminum heads and rebuild my block, but with a new intake manifold and carb thats gonna run over 3k. also I am using the th350 transmission how much HP is it good for? It has been rebuilt sometime in the recent past
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Old Nov 7, 2009 | 05:17 PM
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If you all ready got $2k, save another 1k and get this motor:

http://www.yearone.com/serverfiles/f...=15&goBtn.y=10

Last edited by RunningMan373; Nov 7, 2009 at 05:20 PM.
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Old Nov 8, 2009 | 06:15 PM
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Somehow I like the idea of supporting your local builder.....
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Old Nov 8, 2009 | 11:02 PM
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www.enginefactory.com ive heard is good.
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