lsx s14 question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Johnsona · 07-31-2014, 04:34 PM

Im putting a 4.8 vortec into my 97 240sx. I was wondering if L Series(ls1/ls6/4.8/5.3 vortec etc) engines all use the same wire harness. I was going to pick up a ls6 intake harness and computer bundle. Will the ls6 wire harness work? Will the computer work?

l adam l · 08-01-2014, 12:21 AM

silviav8forums.com

...also the 4.8 should stay in the truck. 5.3 and up is worth it or sell that 4.8 and buy a turbo...just my $.02

Johnsona · 08-01-2014, 01:25 AM

Thanks Adam Check out this link
http://www.superchevy.com/how-to/eng...e-ls-slugfest/

niscur29 · 08-03-2014, 11:34 AM

Nothing wrong with running a LR4 in a S-chassis. If you can get one cheaper then a 5.3L go for it. You can mod the hell out of that motor if you want more power if the block is in good shape or bore the block out to LS1 specs should if ever blow and have more room to do anything from LS1 to 383 stroker etc. The amount of aftermarket support for these motors is ridiculous.

Truck manifolds do very tall and will probably cause some hood problems. But you can pick up an LS1 manifold very cheap or an LS6 if you ever plan to go bigger for a few hundred.

As far as harnesses go, I would personally look into picking up a stand alone LS swap harness that will control the motor only. These type of harnesses only require switched 12V, ground, and fuel pump wiring. This way you can completely bypass/remove the entire clusterfuck of nissan relays under the hood that are not needed to run the LS. A remanufactured 411 pcm and frost tune for the stock 4.8L will have you up and running for $300 bucks. Add $500 for the harness and you can have the motor running in a single day. The 411 PCM will control any cable driven gen 1 LS based motor

07-31-2014, 04:34 PM	#1
Johnsona Join Date: Jun 2013 Location: Baltimore Age: 30 Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	lsx s14 question Im putting a 4.8 vortec into my 97 240sx. I was wondering if L Series(ls1/ls6/4.8/5.3 vortec etc) engines all use the same wire harness. I was going to pick up a ls6 intake harness and computer bundle. Will the ls6 wire harness work? Will the computer work?

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08-01-2014, 12:21 AM	#2
l adam l Zilvia Member Join Date: Feb 2009 Location: Murfeesboro, TN Age: 33 Posts: 254 Trader Rating: (0) Feedback Score: 0 reviews	silviav8forums.com ...also the 4.8 should stay in the truck. 5.3 and up is worth it or sell that 4.8 and buy a turbo...just my $.02

08-01-2014, 01:25 AM	#3
Johnsona Join Date: Jun 2013 Location: Baltimore Age: 30 Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	Thanks Adam Check out this link http://www.superchevy.com/how-to/eng...e-ls-slugfest/

08-03-2014, 11:34 AM	#4
niscur29 Zilvia Junkie Join Date: Mar 2010 Location: Back IN FL, bring nice cars to the fail state! Age: 40 Posts: 481 Trader Rating: (14) Feedback Score: 14 reviews	Nothing wrong with running a LR4 in a S-chassis. If you can get one cheaper then a 5.3L go for it. You can mod the hell out of that motor if you want more power if the block is in good shape or bore the block out to LS1 specs should if ever blow and have more room to do anything from LS1 to 383 stroker etc. The amount of aftermarket support for these motors is ridiculous. Truck manifolds do very tall and will probably cause some hood problems. But you can pick up an LS1 manifold very cheap or an LS6 if you ever plan to go bigger for a few hundred. As far as harnesses go, I would personally look into picking up a stand alone LS swap harness that will control the motor only. These type of harnesses only require switched 12V, ground, and fuel pump wiring. This way you can completely bypass/remove the entire clusterfuck of nissan relays under the hood that are not needed to run the LS. A remanufactured 411 pcm and frost tune for the stock 4.8L will have you up and running for $300 bucks. Add $500 for the harness and you can have the motor running in a single day. The 411 PCM will control any cable driven gen 1 LS based motor