Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Old Apr 30, 2022 | 10:27 AM
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Default Wiring swap question

Hi.. I have a 1998 ls1 I’m using for a swap I have all of the wiring harness in every part of the engine and transmission I need to complete the swap however I did not get the under hood fuse panel… I had the computer sent out to disable the necessary things and the wiring was also done by the same shop. When I received the wiring back it had relays and fuses attached to it for fans etc.
My question is do I also need the under hood fuse box to complete the wiring or is there another option. I’ve seen everything from using the under hood stuff to aftermarket stuff I just want to get it to the point where it starts up and runs. Any suggestions on any and all fuses and relays I will need would be much appreciated. Thank you
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Old Apr 30, 2022 | 11:51 AM
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Welcome man, you might have better luck posting your question in the conversions and LSx swap section!

(edited to add- it got moved here. so im not a crazy person.)

Last edited by theunderlord; May 4, 2022 at 11:31 AM.
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Old Apr 30, 2022 | 06:35 PM
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Originally Posted by theunderlord
Welcome man, you might have better luck posting your question in the conversions and LSx swap section!
Uhh... it's here....
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Old May 4, 2022 | 11:29 AM
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Originally Posted by 84 hurst olds
Hi.. I have a 1998 ls1 I’m using for a swap I have all of the wiring harness in every part of the engine and transmission I need to complete the swap however I did not get the under hood fuse panel… I had the computer sent out to disable the necessary things and the wiring was also done by the same shop. When I received the wiring back it had relays and fuses attached to it for fans etc.
My question is do I also need the under hood fuse box to complete the wiring or is there another option. I’ve seen everything from using the under hood stuff to aftermarket stuff I just want to get it to the point where it starts up and runs. Any suggestions on any and all fuses and relays I will need would be much appreciated. Thank you
Are the wires on the new harness labelled? If the shop did the alterations for you more then likely you are all set with the fuse panel they provided. Simply connect your constant hot, ignition hot and ground.

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Old May 4, 2022 | 03:48 PM
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Yes they are labeled…. I’ve seen and read that people go above and beyond that (large fuses from the battery to the starter for example). But I definitely don’t want to do anything unnecessary
thank you
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