C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

The L98

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Old Jun 3, 2006 | 10:19 PM
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Default The L98

I need to know every single little thing about the 350 5.7 L98. So everyone who know something please help out.
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Old Jun 3, 2006 | 10:24 PM
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Thats a very broad range. You will need to be more specific to get any replies. My first recommendation (if your a new owner) is to purchase the FSM manual for it, it has a lot of information. If you are having a specific problem(s), then list that, this way people here can help you out better
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Old Jun 3, 2006 | 10:25 PM
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From: levittown pa. usa Even a bad day with my `Vette, is better than a good day at work
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Best info is in the Helms factory service manual. Other than that try using the search feature at the top of this page. A wealth of info in there
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Old Jun 3, 2006 | 10:37 PM
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We need to know exactly what it is you want to know.
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Old Jun 3, 2006 | 11:48 PM
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It's got eight cylinders. Hope that helps......
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Old Jun 3, 2006 | 11:51 PM
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8? here i've been rong this whole time!

ain't it carburated too?
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Old Jun 3, 2006 | 11:52 PM
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It'll run like hell with the right bolt-on's.
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Old Jun 4, 2006 | 12:05 AM
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This is all you need!

http://forums.corvetteforum.com/show...=l98+explained
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Old Jun 4, 2006 | 10:02 AM
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The C4 FAQ section at the top, and the search feature is a great place to start.
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Old Jun 4, 2006 | 10:05 AM
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They tend to leak oil and smoke a bit. They do run pretty well overall.
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Old Jun 4, 2006 | 10:07 AM
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Originally Posted by Pete K
They tend to leak oil and smoke a bit. They do run pretty well overall.
and have grounding issues from the oil build up
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Old Jun 4, 2006 | 10:20 AM
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Built by Chevrolet.
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Old Jun 4, 2006 | 10:27 AM
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Buy Charles Probst's book, "How to understand, service and Modify Corvette Fuel Injection". That will cover most of your questions.I also like Ben Watson's "How to Tune and Modify Chevrloet Fuel Injection" and Jason Scott's "How to Tune and Modify Chevrolet TPI Engines".
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Old Jun 4, 2006 | 10:36 AM
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Originally Posted by Aardwolf
Forgot about that. Very cool.
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Old Jun 4, 2006 | 10:57 AM
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Okay, since you got my drunk, smart-*** answer last night, here's what I know. It's a great engine with killer low end power. But due to a crappy intake design, it runs out of steam much too early. This intake also makes top-end work a PITA. But underneath that, it's just another small block Chevy. If you get one from an 86 1/2 or newer Corvette, you have a roller cam engine which also has the benefit of a cam retainer, something the SBC should have always had and was one of the few flaws in an otherwise great design. They had no choice at that point, it became a neccessity with the roller. The best factory heads came along in '88 as well as the highest HP rating which continued through '91 in the Vettes.
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Old Jun 4, 2006 | 11:08 AM
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Originally Posted by Corvette Kid NC
Okay, since you got my drunk, smart-*** answer last night, here's what I know. It's a great engine with killer low end power. But due to a crappy intake design, it runs out of steam much too early. This intake also makes top-end work a PITA. But underneath that, it's just another small block Chevy. If you get one from an 86 1/2 or newer Corvette, you have a roller cam engine which also has the benefit of a cam retainer, something the SBC should have always had and was one of the few flaws in an otherwise great design. They had no choice at that point, it became a neccessity with the roller. The best factory heads came along in '88 as well as the highest HP rating which continued through '91 in the Vettes.
Well said!
I am a big fan. They are fun to drive.
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Old Jun 4, 2006 | 02:36 PM
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hm... odd... a dude with a handle of "L98tech" and wants to be taught all about them... seems like a real leap of faith or something.
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Old Jun 4, 2006 | 02:38 PM
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Originally Posted by L98tech
I need to know every single little thing about the 350 5.7 L98. So everyone who know something please help out.
Another thing, 5.7 litres is the metric measure of 350ci.

It's kinda like saying "ATM machine." Or "NIC card."

This comes straight from the Redundant Department of Redundancy.
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Old Jun 4, 2006 | 02:49 PM
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Originally Posted by Pete K
Well said!
I am a big fan. They are fun to drive.
Yeah, and they generally kick my *** in autocross too......
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Old Jun 4, 2006 | 06:13 PM
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Originally Posted by Corvette Kid NC
If you get one from an 86 1/2 or newer Corvette, you have a roller cam engine
No, the 87 got the roller.

Late 86 got the '128 heads, but still had a hyd. flat tappet cam.
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