I just recentally got an LS2 for my 99 Trans am , now theres quite a few things that are different from the LS1 on the Block , the Oil pump sensor is different , the injector plug in's are different, i noticed that i would have to extend my wiring to the front for the Crank sensor to be relocated the knock sensors on the LS2 are located on the side of the block instead of under the intake manifold, and i noticed that the throttle bodys are different on the LS2 its wired not cable driven. I see also on the LS2 that the Oil pan is a little longer from front to back of the engine , now that would not sit down on the crossmember right , now Anyone have any answers for these Questions or know any websites that i can convert LS1 Wiring to LS2 Please let me know ... Thanks you much... But my last question is if i do hook an LS2 wiring harness up to my computer its probally not gunna work the way it should , WOuld the Car even start up after i installed the harness and pluged everything in and hooked it up ? IF you can PLEASE help me out or if you have anyweb sites that give any good information for this let me know ... thanks ...

 

jason over at katech was a great help for my conversion. the have everything u need for the conversion, give them a call. i just put the ls1 pan and pick up tube on the ls2.

 

www.speartech.com can convery your harness..

Also.. Katech makes some adapter harnesses to help convert LS1 harnesses to work with an LS2 .. www.katechengines.com


Do you have a 24x reluctor LS2 or a 58x reluctor LS2??

 

well im not too sure how can you tell ? all i know is it has a c6 oil pan and a C6 underdrive pully ...

 

I would have to get my computer Retuned after i installed everything right and got the converted harness from the LS1 to the Ls2 correct ?

 

Problem: Oil pressure sensor
Solution: Your LS1 sensor is the same thread, just swap it

Problem: Injector plugs
Solution: Run your LS1 injectors in the LS2 manifold/rail with our spacer kit, or use our injector adapter harness to use the LS2 injectors

Problem: Cam and Knock sensors
Solution: Our Cam/Knock extension harness. Use your LS1 knock sensors in the side of the block. Motor mount holes are the same thread. If you have clearance issues with the headers you can use the LS2 knock sensor holes if you tap the thread larger.

Problem: Throttle body
Solution: We sell the UMI 90mm cable throttle body. You have to fab your own cable bracket.

Problem: Oil pan
Solution: Try your F-body oil pan.

 

thanks alot JAson , now if you could give me a price broke down for all that i would appriciate it , thanks ..

 

Cam/Knock harness $59.99
UMI TB $549.25
Fuel rail spacer kit $24.99
or
Fuel injector adapter harnesses $99.95


One more thing not listed:
Problem: MAP sensor wires too short
Solution: MAP sensor extension harness $25.99

 

How Can You Tell The Difference Between A 24x Reluctor And A 58x Reluctor On The Ls2 Engines ? Is There Anyway I Am Able To Use The 24 Throttle Body By Wire Thats On The Crate Engine For My 1999 Trans Am ? And I Would Defantally Like To Purchase The Cam/knock Harness For The Ls2 And Also Would Like To Purchase The Fuel Injector Adaptor Harness Too , How Would You Go About Doing That ?

 

2006 LS2 Crate engine with 58x reluctor: 19156261
2005 LS2 Crate engine with 24x reluctor: 12499750

I could tell you how to use the TB, but it's not worth it.

You can call 866-KATECH1 to order

 

Ok Mine Must Be The 24 X Since Its A 2005 That Was Purchased In November , It Also Has The C6 Oil Pan And Underdrive Pully On It ...

 

What Is The Way You Can Go About Using The Throttle Body Thats Currently On The Crate Engine ?

 

Buy a stand-alone Speartech harness, PCM, TAC module and pedal.

 

DO they make harnesses to convert the LS1 oil sending unit to the LS2 style oil sending unit ? how much is a harness or is it good or bad to take the oil sending unit off the LS1 and put it on the LS2 ? what should i do here ? PLEASE help me out here ..

 

Put the LS1 oil sending unit into your LS2 valley cover. The threads are the same.

 

the only thing i was worried about was the ls2 not getting enough oil with the ls1 oil sending unit .. is that a problem ?

 

This has nothing to do with the amount of oil the bearings receive.

 

ok thanks

 

Will buy you C6 oil pan--
Bruce
Meltn@new.rr.com

 

Sounds good , how much were you thinking ? LS2 24x relutor , i got the underdrive pully for sale , and the solid motor mounts too !!