Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Grand national lsx conversion?

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Old 04-06-2012, 09:10 PM
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I dont currently have a motor the car was a roller when i bought it! It seems the V6 cost a fair amount more to build but the flip side the LS would require allot more fab work which will ring the total up there i think along with many others though the LS will handle bigger power better than the 6 long term.
Old 04-07-2012, 08:42 AM
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Originally Posted by lamdenali
Chris this is mine I bought it from a member here and on TB as well
Were you able to fit that Edelbrock intake with the stock GN hood?
Old 04-21-2012, 10:25 PM
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Anyone else play with keeping the A/C with a turbo setup?
Old 04-25-2012, 06:44 PM
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Well i have decided to go the LS route and give my fab skills the challenge of keeping A/C while still running a turbo should be fun! Now for the Ls guru's what is a good foundation to start with block wise for a turbo build i was looking at a lsx 454 block i would like to have a fairly large CI motor just dont know if that is the way or not? The build will be getting nice internals and matched for a turbo which i dont want to be a huge unit if posssible for clearance reasons so i am open to suggestions and direction Please!
Chris
Old 04-26-2012, 07:12 AM
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Anyone?
Old 04-26-2012, 01:58 PM
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Originally Posted by lazaris
Were you able to fit that Edelbrock intake with the stock GN hood?

No I have a 2 inch Cowl hood on mine. I seen other with the same intake with stock hood
Old 04-26-2012, 02:00 PM
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Chris ,the other said he'll take the headers but if he back out I'll let you know. A 6.0 will make 1200 HP with turbo, you dont need to go with that big with a turbo. 6.0 is fairly cheap
Old 04-26-2012, 04:06 PM
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What kinda of power do you expect to make? Will help figure out what size motor to run!
Old 04-26-2012, 05:33 PM
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I guess somewhere in the 850hp range i want something to get me in the 9's fairly easy but with some room to grow if needed later which is why i was thinking a larger CI and low amount of boost for now then turn it up down the road if that time comes just need to be sure the motor will take it!
Old 04-26-2012, 05:52 PM
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Haha, you won't need a 454 to get 850 hp turbo. Stick with the 6.0 iron. Some of the wilder n/a builds hit 850 horse. Not many but a couple have.
Old 04-26-2012, 06:12 PM
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I would be fine with building a forged 6.0 as long as it would be able to handle the power long term and maybe a bit more. I just like doing thing right the first go around and overkill it for good measure!
Old 04-26-2012, 06:58 PM
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this is interesting. good luck with all your fab work!
Old 04-26-2012, 07:03 PM
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Thanks i think i may need some luck doing it!
Old 04-27-2012, 05:36 AM
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A 6.0 iron block stroked, forged and turbo sounds like its right up ur ally! Im doing the same to 87 national i got as a roller. Ill be run the items listed above! Ill be running ac as well!
Old 04-27-2012, 07:08 AM
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That is what i am hearing but i was figuring for a little more $$$ get the LSX block that is stronger plus has 6 head bolts might be overkill but if i decide to get a little crazy some day the foundation is there already. I think the biggest challenge will be the exhaust keeping the a/c but like anything it can be done!
Old 04-30-2012, 07:33 AM
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Here is a question anyone here ever slapped a procharger on a Ls'd Gbody thinking that may be a way to help with the tight exhaust issue? Pro's and cons compared to a turbo system?
Old 04-30-2012, 07:03 PM
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No one went the procharger route?
Old 04-30-2012, 10:38 PM
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A couple have done magnusons but I don't think any prochargers. It will take some good fab skill to keep the AC box with a turbo
Old 05-01-2012, 07:12 AM
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I know it would be a tight fit thats why i am considering other routes. i seen a thread about someone doing a procharger on a g body but i dont know if it ever happened.
What are the differences in the turbo compared to a supercharger? Spool differently?different power level? when does a supercharger need intercooled?
Old 05-07-2012, 11:10 PM
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Well decided to close the stock A/C hole and smooth it out i will probably go with a vintage air system further down the road. I contacted BRP about their mounts and told them i plan on running a 4l80e and they said i would need to cut the trans tunnel to fit it! I know a few guys here running the same trans and dont think they had to cut to fit so i guess the mounts are different with engine placement. What mounts and pan should i use to have the 4l80e fit without cutting?
Chris


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