Conversions & Swaps LSX Engines in Non-LSX Vehicles
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LSX 1970 Chevelle Conversion

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Old Oct 7, 2010 | 06:46 AM
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Default LSX 1970 Chevelle Conversion

Putting a 438 LSX in a 70 Chevelle and i am looking for some input on the radiator hoses. Anyone have any part numbers for hoses that are compadible with the old style radiator and new style LSX pump and outlets??
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Old Oct 7, 2010 | 08:44 AM
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ck the chevelle sticky has the hose and part # there
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Old Oct 7, 2010 | 02:33 PM
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um u deff have to post pics now...haha
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Old Oct 7, 2010 | 04:02 PM
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Go to Autozone and get either part# XL-183 or XL-185. Both are about $9 each........ I have a 69 Chevelle... I have the XL-183 on but you will have to trim it at the waterpump...... These will work if you are using a water pump with the pump spout facing forward....... If the spout is facing up toward the passenger side the XL-183 you prob will not have to cut....


The lower hose I used 17" flex hose(you could get away with 18")

My radiator is Summit's 80457 for a big block Chevy....I used this when I had my BBC......

The water pump for the upper hose was around(these are ballpark) 1 1/4(pump) and 1 1/2(radiator)

For the flex hose I got it 1 1/2 on each end(pump/radiator)
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Old Oct 7, 2010 | 06:09 PM
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hoses from a silverado with a 5.3 they fit fine
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Old Oct 7, 2010 | 06:35 PM
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Pics!!!!!
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Old Oct 22, 2010 | 01:01 AM
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Ok, Ok.....




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Old Oct 22, 2010 | 01:52 AM
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Wow, that is an awesome conversion!
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Old Oct 22, 2010 | 11:03 AM
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Was that dash the stock sweep style before? If so where did you get that plate I want to get rid of my sweep especially when I put put in the 4l60e so I can get an electric speedo
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Old Dec 4, 2010 | 10:32 AM
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anymore updates?
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Old Dec 5, 2010 | 12:17 AM
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No, pretty much at a standstill now. I have had nothing but problems with the EZ-TCU trans controler from TCI! I am so pissed at this company right now words can't even describe. I should have known better when me and my bud had nothing but problems with their cheap *** convertors!! I am about to get my 3rd controler from them and if this one doesn't work i'm going to have to go a different route..........
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Old Jun 2, 2011 | 10:21 PM
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Just an update. Finally got everything ironed out and on the dyno. The thing made 604/556 at the wheel thru a 4L80e and a 12 bolt
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Old Jun 3, 2011 | 05:01 PM
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[QUOTE=ramairws6;14023279]Ok, Ok..... [/ChevelleGauges006.jpg[/IMG]


Did you make new engine stands on your chevelle. It looks like you have plenty of room by the PS pulley and steering box?
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Old Jun 3, 2011 | 06:00 PM
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The kit that was purchased when putting all the parts together had the mounts put right where they are at. I agree with you on all the room and i questioned wether this should have been forward or not but this is where it ended up....
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Old Jun 3, 2011 | 06:20 PM
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Thanks. I wish I had more room like that but it all comes down to where you place the stands.
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Old Jun 5, 2011 | 11:56 AM
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Agreed...you definitely need to post pics for all to see.
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Old Jun 5, 2011 | 12:01 PM
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Originally Posted by ramairws6
The kit that was purchased when putting all the parts together had the mounts put right where they are at. I agree with you on all the room and i questioned wether this should have been forward or not but this is where it ended up....
That engine position is definitely further back than the original SBC or BBC. I would be interested in seeing how much room there is between the passenger head and the firewall. My bet is that you may have problems if you ever need to pull the trans.

Andrew
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Old Jun 6, 2011 | 07:35 AM
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I used upper and lower hoses from a 98 Z28. Heres a pic of the upper, I can get one of the lower, but don't have one right now.
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Old Jun 6, 2011 | 08:28 AM
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why a carbed LS1? If you are running a carb why not a BBC
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Old Jun 6, 2011 | 10:08 AM
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Originally Posted by JC70SS
why a carbed LS1? If you are running a carb why not a BBC
Why not??? Carbs easier to tune, easier tune spark with MSD 6010/6012, less expensive to upgrade(bigger carbs) and according to the mags I have read we make more power? Plus if we want to later we can add some injectors or a FAST TB and still make more power then a Fuel Injected intake. Plus what u would have to do to a BBC to make the power and flow numbers can get real expensive with a BBC plus the LS offers weight savings....BBC's are a dying breed...now there just mostly for bragging points.
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