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

LT4 Intake Question.

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Old 11-04-2008, 08:51 AM
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Default LT4 Intake Question.

I would have conducted a better search but I am in a hurry, gotta take my daughter to school. So here is my question. Is the LT4 Intake Mani worth the cost of one? Just asking because I was tossing around the idea of buying one to swap in. Just as a small fun project. Thanks you
Old 11-04-2008, 08:55 AM
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Unless they're practiclly giving it away, no.
Old 11-04-2008, 08:58 AM
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yea you should def search more, becuase for the price of the LT4 intake you will see extremely minimal gains, getting the stocker ported will yield better results per dollar without a doubt, now if you plan on doing some serious porting in the future then maybe the LT4 intake would be a good idea as it has more material to work with, otherwise if youre going to buy the LT4 intake which is kinda expensive, i'd just pay to have the stocker sent off and ported by either LE or AI. both very reputable names for our intakes.
Old 11-04-2008, 09:11 AM
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if you do choose to get the LT4 intake, i believe you would also have to get the LT4 heads or get the lt1's ported because the ports dont line up correctly between the LT4 intake and LT1 heads
Old 11-04-2008, 09:25 AM
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and gmhtp magazine tested the gains of this manifold and didnt it loose power on the stock heads?
Old 11-04-2008, 09:30 AM
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yea...unless your buying a whole topend for next to nothing and plan on some extensive porting, pass. your lt1 heads wont work with just the intake alone anyways as said above.
Old 11-04-2008, 04:19 PM
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Sweet, thanks guys. I had a feeling it was not worth the money. I knew I if I went with the LT4 Intake I would have to Port Match it to get it to fit. Now what about a whole LT4 Kit? I think Jegs sells them.


PS Batman I noticed your sig. I have an 07 R1 and Love it!
Old 11-04-2008, 04:55 PM
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ok same thing about the LT4 kit. just go all aftermarket. not factory upgrade. the factory upgrade ends up being more expensive and does not yeild near the same gains.
check out Llyod Elliot or Advanced Inductions Websites for Head Cam Intake Packages that will far surpass the LT4 kit stock and will cost about the same if reasonably done.
Old 11-04-2008, 06:36 PM
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The LT4 intake is INTERNALLY the same as the LT1 intake, so it would not be "very little gain" or "a loss" or any of the other guesses.

It has more material above the ports to seal to the taller ports that are in the LT4 heads, this extra material interferes with the valve cover rail on the LT1 heads so it can not be bolted on unless you machine either the heads or the intake and if you do machine either there is NOT gain because it is the same internally anyway and if you machine the intake removing that extra material you basically make it an LT1 intake.

GIZMO was good enough to post this picture a long time ago and I have linked too it countless times but you guys REFUSE to learn and get the information straight.
Old 11-04-2008, 07:07 PM
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A ported stocker is just as good.......
Old 11-04-2008, 07:20 PM
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When using the AFR heads, do you need to modify/port the LT4 intake or it's a direct bolt with no porting needed. Same question about the AFR and LT1 intake.
Old 11-04-2008, 07:57 PM
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Originally Posted by 96capricemgr
The LT4 intake is INTERNALLY the same as the LT1 intake, so it would not be "very little gain" or "a loss" or any of the other guesses.

It has more material above the ports to seal to the taller ports that are in the LT4 heads, this extra material interferes with the valve cover rail on the LT1 heads so it can not be bolted on unless you machine either the heads or the intake and if you do machine either there is NOT gain because it is the same internally anyway and if you machine the intake removing that extra material you basically make it an LT1 intake.

GIZMO was good enough to post this picture a long time ago and I have linked too it countless times but you guys REFUSE to learn and get the information straight.
From what I have read I thought the Lt4 Intake had shorter runners? Correct me if im wrong here.


Edit: Ok I went back and re read what I thought was right. What I was reading was the information on the Edelbrock PERFORMER RPM AIR-GAP Intake Mani's Thanks for the info

http://www.edelbrock.com/automotive_...-lt1-lt4.shtml
Old 11-05-2008, 06:43 AM
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Originally Posted by ninjai_ruken
From what I have read I thought the Lt4 Intake had shorter runners? Correct me if im wrong here.
The only difference betwean the LT4 intake and the 1996-97 LT1 intakes is the material above the ports (and the part number).
Old 11-05-2008, 09:21 AM
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Originally Posted by PNYKLR-TA
ok same thing about the LT4 kit. just go all aftermarket. not factory upgrade. the factory upgrade ends up being more expensive and does not yeild near the same gains.
check out Llyod Elliot or Advanced Inductions Websites for Head Cam Intake Packages that will far surpass the LT4 kit stock and will cost about the same if reasonably done.

X2 what he said, much more power for the same $
Old 11-05-2008, 09:49 AM
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[QUOTE=ninjai_ruken;10423112]From what I have read I thought the Lt4 Intake had shorter runners? Correct me if im wrong here.


Edit: Ok I went back and re read what I thought was right. What I was reading was the information on the Edelbrock PERFORMER RPM AIR-GAP Intake Mani's Thanks for the info

this is wat i was referring to with the loss of HP they did a big thing in gmhtp mag
Old 11-05-2008, 05:10 PM
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[QUOTE=z28rob18;10426501]
Originally Posted by ninjai_ruken
From what I have read I thought the Lt4 Intake had shorter runners? Correct me if im wrong here.


Edit: Ok I went back and re read what I thought was right. What I was reading was the information on the Edelbrock PERFORMER RPM AIR-GAP Intake Mani's Thanks for the info

this is wat i was referring to with the loss of HP they did a big thing in gmhtp mag
The Edelbrock Intake had a loss of HP?



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