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

LS1 Throttle body on a LT1?

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Old 12-05-2010, 11:57 PM
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Default LS1 Throttle body on a LT1?

Has anyone done this? if so what would i have to do to make it work? i plan on running a single plane intake next year and just wondering if it could be done, if not i will just run the Arizona Speed and Marine Monoblade.
Old 12-06-2010, 12:10 AM
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Just out of curiosity....what would you gain by going to a LS1 Throttle body??
Old 12-06-2010, 12:36 AM
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You would have to custom make a plate for the front of the intake. Not worth the time and effort when a monoblade is already in production
Old 12-06-2010, 12:39 AM
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Originally Posted by MattSapp95_T/A
Just out of curiosity....what would you gain by going to a LS1 Throttle body??
I was just doing the math one day and CFM of a LS1 90mm is way more compared to a LT1 dual 58mm, and i was just curious if anyone has done it, i was planning on going with the ASM monoblade.
Old 12-06-2010, 01:02 AM
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Monoblade will flow more than most of any of us will ever make....That would be the route I went since it would be more trouble than its worth to fab something up for the ls1 TB
Old 12-06-2010, 01:53 AM
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The LS1 90mm TB flows roughly 1170 cfm. A 58 flows 1050, Monoblade flows 1300. If you need more than that then go with a 4150 TB
Old 12-06-2010, 03:13 AM
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Just out of curiosity, how many mm is the LT1 MAF and what does it flow?
Old 12-06-2010, 12:02 PM
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Originally Posted by Rob94hawk
Just out of curiosity, how many mm is the LT1 MAF and what does it flow?
Good question.. i would like to know also
Old 12-06-2010, 12:03 PM
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Originally Posted by hitmanws6
The LS1 90mm TB flows roughly 1170 cfm. A 58 flows 1050, Monoblade flows 1300. If you need more than that then go with a 4150 TB
Wow didnt know the Monoblade flowed that much.. thanks for the info
Old 12-06-2010, 04:09 PM
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If going single plane, why you wanting to use LS1 or LT1 TB?
BUT I have thought about seeing about making and adaptor to run the LS1 TB on the LT1. but not sure if they would sell, who goes from LSx to LT1!?!? And you can get an off brand LT1 58mm for what you can get a used LSx TB for....the adaptor would probably be pretty thick too and would create clearance issues.....
Old 12-06-2010, 09:39 PM
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Originally Posted by Shon Herron
If going single plane, why you wanting to use LS1 or LT1 TB?
BUT I have thought about seeing about making and adaptor to run the LS1 TB on the LT1. but not sure if they would sell, who goes from LSx to LT1!?!? And you can get an off brand LT1 58mm for what you can get a used LSx TB for....the adaptor would probably be pretty thick too and would create clearance issues.....
Im going to run a single plane with a sheet metal elbow... what else would i do? run a carborator? why would i want to run POS carb lol. And i already have a 58mm TB, looking for something bigger. Im going with larger heads, 60ib injectors, and a bigger cam on my 396 next year so im looking for a little more air flow.
Old 12-07-2010, 12:24 AM
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MAF is 75mm and flows 805 cfm
Old 12-07-2010, 12:51 AM
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Originally Posted by hitmanws6
MAF is 75mm and flows 805 cfm
thats weak! do you know who makes the biggest aftermarket MAF, what size is the granetelli?
Old 12-07-2010, 02:33 AM
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Originally Posted by ReggieWarrenJr
thats weak! do you know who makes the biggest aftermarket MAF, what size is the granetelli?
Same diameter. the next step up is the Delphi 85mm MAF, that flows around 950 cfm. After that you start getting into the 100mm MAFs (Lingenfelter, texas Speed, Callaway) that flow well over 1000cfm
Old 12-07-2010, 09:44 AM
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Originally Posted by ReggieWarrenJr
Im going to run a single plane with a sheet metal elbow... what else would i do? run a carborator? why would i want to run POS carb lol. And i already have a 58mm TB, looking for something bigger. Im going with larger heads, 60ib injectors, and a bigger cam on my 396 next year so im looking for a little more air flow.
im running a mono blade thats pretty big........like 1500cfm+ big ......check out wislon manifolds
Old 12-07-2010, 11:13 AM
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Originally Posted by ReggieWarrenJr
Im going to run a single plane with a sheet metal elbow... what else would i do? run a carborator? why would i want to run POS carb lol. And i already have a 58mm TB, looking for something bigger. Im going with larger heads, 60ib injectors, and a bigger cam on my 396 next year so im looking for a little more air flow.
With that aggressive of a combo I would just get a speed density tune, run a big 4bbl TB, and do away with all intake restrictions.
Old 12-07-2010, 12:55 PM
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Originally Posted by Puck
With that aggressive of a combo I would just get a speed density tune, run a big 4bbl TB, and do away with all intake restrictions.
Are there any disadvantages to a speed density tune?
Old 12-07-2010, 02:50 PM
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so how much hp should a stock maf make before becoming a restriction? wut about 85mm?
Old 12-07-2010, 07:05 PM
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Originally Posted by ReggieWarrenJr
Im going to run a single plane with a sheet metal elbow... what else would i do? run a carborator? why would i want to run POS carb lol.
There is nothing wrong with a carburetor. Just look at that stubby cheap plastic oil pump drive in the back of the oil galley, it is just begging to get stabbed a piece of real steel.
Old 12-08-2010, 09:02 AM
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any one have any idea how much horsepower a stock maf will handle? or even an 85mm?


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