LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Hate to ask this......

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Old Sep 5, 2013 | 10:28 AM
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Default Hate to ask this......

But does a ls1 valve covers fit on lt1? Would like to put something different on the motor. I have a 96 Z28 6spd. Try to go easy on me please. I know I have a lot to learn. Thanks. Joe
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Old Sep 5, 2013 | 10:36 AM
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i don't think so, but i think any gen 1 SBC valve covers with 4 center mount bolts work. that means anything mid 80s on up i think as i had an 83 T/A 305 that had 4 perimeter bolts rather than the 4 in the middle of the valve cover.

*edit*

just checked ebay and found this pic of aftermarket LS1 valve covers. no way those are fitting on an LT1. while they appear to have the same mounting holes, the shape of the valve cover itself is different. LT1's don't have rounded corners like that.


Last edited by 1995blacktattop; Sep 5, 2013 at 10:43 AM.
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Old Sep 5, 2013 | 10:40 AM
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Ok. Thank you sir. I know there is a concern with the alt being right on top more or less on the valve covers. I like the (god 4 give me) Edelbrock no name ones.
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Old Sep 5, 2013 | 02:07 PM
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yeah you pretty much have to have valve covers made for a LT1 because of the alternator.
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Old Sep 5, 2013 | 03:26 PM
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Originally Posted by Ntimid8r7
yeah you pretty much have to have valve covers made for a LT1 because of the alternator.
Exactly, or you move the alternator and use any non ls1 center bolt valve covers.
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Old Sep 5, 2013 | 03:41 PM
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For aftermarket VC's you can use standard sized ones if you grind a bit on the alternator. This is risky because it's dangerously close to some bolt or screw that is on the inside of the alternator. If the aftermarket VC's are stamped steel you can bang on them a bit to clear the alternator. It's been done countless times.
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Old Sep 5, 2013 | 04:15 PM
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Any center bolt valve cover from a 1987-2000 GenI or GenII SBC will fit. You would just have to have the alternator area notched out.
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Old Sep 5, 2013 | 05:14 PM
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Thanks for all the input.
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lt1 corvette composite valve covers, a bit rare and pricy though. Other than that just look at summit.
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Old Sep 6, 2013 | 08:42 AM
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I liked the look of the Proform black crinkle VCs, but they don't clear the alternator. No problem, I thought, as I had access to a Bridgeport mill, and could machine a notch in the VC to clear the alternator. I then made a cover to clear the notch, welded it in place, shot the cover with black crinkle paint, and slipped them on.


What a waste of time and money..... The VCs just wouldn't stay tight, as the tops of them are made of a thin material, and flat, with no ribs for support. I wound up "snugging" the bolts every other day, in an effort to stop them from leaking, and after a month or so, the tops were warped inward, and the VCs useless.

They DID look great, however, while they lasted....
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