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gen III accessories on Gen IV

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Old Aug 27, 2012 | 04:15 PM
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Default gen III accessories on Gen IV

basically building a L76 / Ls3 intake manifold

was wondering can i use all the accessories from a 4th gen f-body Ls1

front accessories
wp/psp/ect


will the
Ls1 valve covers/coilbrackets/coils/spwires on 823heads/Ls3 intake?
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Old Aug 27, 2012 | 08:39 PM
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Ls1 valve covers will not fit unless you modify them, ls3/92/99 are cheap and I would just get those.

What motor will you be using?

You will need to extend the map sensor and get your throttle body and cruise control cable bracket from SDPC the ls3/76 have throttle by wire.
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Old Aug 28, 2012 | 04:33 PM
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Originally Posted by litle88
Ls1 valve covers will not fit unless you modify them, ls3/92/99 are cheap and I would just get those.

What motor will you be using?

You will need to extend the map sensor and get your throttle body and cruise control cable bracket from SDPC the ls3/76 have throttle by wire.
picked up an L76 longblock, has the 823 L92 heads, and they do still have the valve covers but not the coils & brackets

i was told earlier that i could use the Ls1 valve covers, coils, brackets.

was looking to save some coin if possible

so would it be more hassle some to just modify the Ls1 VC's
and keep the coils and brackets

or just use the L92 original VC's
find some coils and brackets Ls3 equivalent

and sell the gen III stuff?
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Old Aug 28, 2012 | 05:04 PM
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I hear you on the coin!!

If you search here you'll find that guys were popping rivets in the vc's of the Ls1's to make them fit Ls3/98/76 heads.

But yea you can use them just modify them and save.
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Old Aug 30, 2012 | 03:33 PM
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thanx a grip for the feedback

new to all the gen IV frankensteining
if u come across any links and dont mind post em for me
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Old Aug 30, 2012 | 03:39 PM
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I swapped all my accessories and covers over on one of my setups, although I just modified my stock valve covers. I cut the baffles out where the LS3 rockers would come in contact, and welded up those pcv provisions. Then just fabbed up my own pcv setup, which wouldve needed to be upgraded anyway due to being a stroker setup.
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Old Aug 30, 2012 | 04:58 PM
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Gen 4 running Gen 3. With LS6 valve covers.

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Old Aug 31, 2012 | 11:07 AM
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thanx guys, was told i could but im getting closer to everything so im trying to avoid as much unexpected expenses as possible.

mbrouder that looks awesome
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Wait... so the LS1 valve covers won't work on an LS3? I'm getting the last things needed for a Gen III to Gen IV conversion and this is the 1st I've heard about the valve covers.
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Old Sep 6, 2012 | 10:42 PM
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Originally Posted by mbrouder
Gen 4 running Gen 3. With LS6 valve covers.


Holy smokes that's pretty.
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Old Sep 7, 2012 | 09:16 AM
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Originally Posted by mbrouder
Gen 4 running Gen 3. With LS6 valve covers
But you have cathedral heads right? Then that would be why, OP is going to be running ls3/99/92 stuff.
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