383 or 388
Le Mans Master
Joined: Mar 2004
Posts: 5,107
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From: Dublin CA
You will get a little more power from the 388, but nothing to write home (or post) about. But you are at the limit of the block. If anything goes wrong now or the future and you have to rebuild you will need a new block if you go 388.
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Team Owner
Joined: Oct 2004
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Race Director
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Melting Slicks
Joined: Feb 2008
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From: Palm Beach
The difference may show up as a very small number on a dyno. Not apparent to the SOTP.
If you buy the 388, your block is bored to the max for minimal gain. With your track record, that leaves no room to recover from the next crisis/drama.
If you buy the 388, your block is bored to the max for minimal gain. With your track record, that leaves no room to recover from the next crisis/drama.
Last edited by MK 82; Jun 4, 2008 at 08:42 PM.
Race Director
Joined: Sep 2003
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From: Database Error Indiana
Have you thought about just buying a Z06 ? Instant horsepower. No mods needed. If I went through all the stuff you have, I would consider it. Less stress and maybe even less $$$. 
Melting Slicks
Joined: Feb 2008
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From: Palm Beach
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Team Owner
Joined: Oct 2004
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
You kill me. You're probably right....I like the rumble of the older style cars.
I have no choice at this point but to fix the problem. I can't sell it this way.
Safety Car
Joined: Jan 2006
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From: Mt Laurel NJ
St. Jude Donor '06-'07
Plenty of those around. Me included
Question: The '90 has a one piece rear main seal, but the 400 block has a two piece rear main seal, correct? So could he still use the same transmission? The reason I ask is that I believe the flywheels are different, and not interchagable.
Safety Car
Joined: Apr 2005
Posts: 3,624
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From: Dale City VA
Plenty of those around. Me included
Question: The '90 has a one piece rear main seal, but the 400 block has a two piece rear main seal, correct? So could he still use the same transmission? The reason I ask is that I believe the flywheels are different, and not interchagable.
Question: The '90 has a one piece rear main seal, but the 400 block has a two piece rear main seal, correct? So could he still use the same transmission? The reason I ask is that I believe the flywheels are different, and not interchagable.
Yes. Fidanza makes a FW specifically for the ZF6 and 2 pc rear seal SBC, it has bolt on counterweights and can be balanced to what ever it needs to be. If he has a 4+3, he only need a stock 400 FW and the correct 168 tooth starter. If its and auto then he just needs a stock 400 flex plate and 168 tooth starter.
Will
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Team Owner
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Yes. Fidanza makes a FW specifically for the ZF6 and 2 pc rear seal SBC, it has bolt on counterweights and can be balanced to what ever it needs to be. If he has a 4+3, he only need a stock 400 FW and the correct 168 tooth starter. If its and auto then he just needs a stock 400 flex plate and 168 tooth starter.
Will
Will
377s spin up faster than 383s....what do you guys think of this?
Instructor
Joined: Jan 2000
Posts: 225
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From: Round Rock, TX
Why not a 396? .030 over / 5.875 rods. I have a More Peformance 396 that has been running strong for 10 years.
I think you can bigger also, 409? 427?
Bigger the better in my opinion as long as the cost is relatively close!
I think you can bigger also, 409? 427?
Bigger the better in my opinion as long as the cost is relatively close!
Race Director
Joined: May 2003
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I debated about doing a 383 or a 396, but then after talking to some guys with some biggers strokers, i.e. 406, 421, and 434 the decision was made not to do a 383.
It's up to you obviously, but I would add more cubic inches to your thoughts. I am doing a 421 with a small set of heads, and a small cam. It has almost no choice but to make at least 500chp/530tq, and I wont have to wear a gas mask driving it.
Our cars are older technology. I have come to the conclusion that if you dont plan to turbo or to supercharge it, throw as many cubic inches at it as you can afford. With the bigger cubes you wont need to rev the **** out of it as well. In saying that my motor isnt cheap, but the price difference in building it versus a 383 was a no brainer.
Take it easy!
It's up to you obviously, but I would add more cubic inches to your thoughts. I am doing a 421 with a small set of heads, and a small cam. It has almost no choice but to make at least 500chp/530tq, and I wont have to wear a gas mask driving it.
Our cars are older technology. I have come to the conclusion that if you dont plan to turbo or to supercharge it, throw as many cubic inches at it as you can afford. With the bigger cubes you wont need to rev the **** out of it as well. In saying that my motor isnt cheap, but the price difference in building it versus a 383 was a no brainer.
Take it easy!
Race Director
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http://www.chevyhiperformance.com/te...ion/index.html
377s spin up faster than 383s....what do you guys think of this?
377s spin up faster than 383s....what do you guys think of this?