The Official LS Swap Info/Questions Thread
Going to highlight a couple of things.. (in RED)
I hope this helps some...
Hey guys, i had a question or two for all the LS2 swap guys in here. First off i am trying to compile a price list to do this swap.
so far:
ls2 motor (0 miles) - $8,900 after tax and shipping
You probably could get one cheaper, I have seen them go for around $5300
Stage 4 clutch & aluminum flywheel - $1,500 including tax and a smidgen in labor (motor and tranny is already off)
Driveline - included in conversion kit?
LS2 swap kit - $1,900 including tax / where can i get this kit? i looked up Sikky but have heard too many bad things about it to be excited and committed to them.
I don't know where you saw a kit for $1,900, but that is wrong.. Estimate around 3k and that is with longtube headers. Look up Sikky as I feel that is our best option
Axles - what do i get?? lol
Look up Drive Shaft Shop, they have three levels you can choose from.. good stuff..
selling current motor, tranny, & full exhaust for - $3,500
I don't think you will get 3k for your motor but you can try..
Exhaust - is this something that needs to be custom made?? Where do i buy and for how much? How about an H pipe?
custom make your exhaust,
Headers - ?????? ebay maybe?
No headers on Ebay please
ECU harness - How much will this run? Over estimate please.
Go ahead and just estimate around 12k to 15k of back..
i figure $8,909 before the above blanks in price quotes and selling my current motor/tranny/full exhaust system. HELP !!!!
so far:
ls2 motor (0 miles) - $8,900 after tax and shipping
You probably could get one cheaper, I have seen them go for around $5300
Stage 4 clutch & aluminum flywheel - $1,500 including tax and a smidgen in labor (motor and tranny is already off)
Driveline - included in conversion kit?
LS2 swap kit - $1,900 including tax / where can i get this kit? i looked up Sikky but have heard too many bad things about it to be excited and committed to them.
I don't know where you saw a kit for $1,900, but that is wrong.. Estimate around 3k and that is with longtube headers. Look up Sikky as I feel that is our best option
Axles - what do i get?? lol
Look up Drive Shaft Shop, they have three levels you can choose from.. good stuff..
selling current motor, tranny, & full exhaust for - $3,500
I don't think you will get 3k for your motor but you can try..
Exhaust - is this something that needs to be custom made?? Where do i buy and for how much? How about an H pipe?
custom make your exhaust,
Headers - ?????? ebay maybe?
No headers on Ebay please
ECU harness - How much will this run? Over estimate please.
Go ahead and just estimate around 12k to 15k of back..
i figure $8,909 before the above blanks in price quotes and selling my current motor/tranny/full exhaust system. HELP !!!!
I hope this helps some...
Thanks bud! Wait until I have my issue fully resolved and the car tuned. In spring it will be coming out with a lighter front end and a 150 shot of nitrous at a minimum. Car should be at under 2,700 lbs in track form. If all goes well there will be a FAST intake and throttle body as well.
Planning on spraying the full 150 shot at 3,800-4,000 rpm's... Which will be about 10' out from my launching point ;-)
Planning on spraying the full 150 shot at 3,800-4,000 rpm's... Which will be about 10' out from my launching point ;-)
Oh boy I can't wait to see this.. You are going to be a beast...
But if it is not here in a months time, I will ***** for sure..
is anybody here having problems with their sikky shifter?? i pulled my motor/trans because my shifter wouldnt go into 2/4/6 at all (shifting up). when the lower shifter ball is perfectly vertical and the car in neutral, the holes dont line up at all, about 1/4 inch. when the shifter is removed or stock shifter is in there, it shifts to all gears just fine. i couldnt find anything about differences in ls1/ls2 trans as far as the shifter base, but this is a pain in the ***. am i doing something wrong here??
harness almost complete, compliments of Justin@QFab Motorsports!!! sneak peek! almost everything is completely hidden, especially with the bov sitting between the throttle body and ps pump, it looks way better and the soldering and craftsmanship is top notch!!
Last edited by bbs350z; Oct 11, 2011 at 12:53 PM.
http://parts.nalleygmc.com/showAssem...ssembly=399894
^thanks royal, also guys check out some ls1tech.com info, alot of guys are getting pressure drops on fast shifts from 3-4, and as stated earlier by fafanfoe and his ls swapped g, he swapped out lines. so i decided while my trans was out, id do that too. the ls solution to that is to drill out the restrictor to 1/8th inch and problem solved. now sikky supplied the lines with the factory size restrictor in the banjo hose end, and getting that drilled out wasnt feasible without taking the hose end off. heres my solution, and it cost me under $50
i grabbed a 42" (slightly bigger than required but i like slack and help tuck it) -3 line with both female ends and was going to drill them out to 1/8th. as per the ls drill mod, however the parts i got from pegasusracing were already 1/8th, fancy that. and also grabbed a -3 m10 (10mm) banjo bolt which was also 1/8th inch. cool. heres the list and website to the parts.
https://www.pegasusautoracing.com/is...asp?RecID=9023 (put in 42 inches and select end a and end b on the first picture which is -3 straight female ends)
and the banjo bolt
https://www.pegasusautoracing.com/pr...asp?RecID=4195
heres a comparison of the sikky banjo and the pegasus banjo (excuse the shitty cameraphone pic) take note of the feed holes size difference

this is the size sikky should use. best part, it bolts right up and while the banjo piece itself is bigger, the bolthole is the same size. no more pressure drop. sweet.
alas, i went to gm dealer, they quoted me at 129 for the gto shifter piece. i showed him a price i got online of $87 and they took 20% off so it came to 103 and i gotta wait a few days. also for you turbo guys, i took my oil feed from a port in the ls block in front of the driver side flywheel dust cover. there are more ports around the block bu this one is post filter, the others are pre filter, so i figure why not run filtered oil to this turbo lol. i will eventually get a different remote oil filter w/ a feed line from there but for now this will suffice.
i grabbed a 42" (slightly bigger than required but i like slack and help tuck it) -3 line with both female ends and was going to drill them out to 1/8th. as per the ls drill mod, however the parts i got from pegasusracing were already 1/8th, fancy that. and also grabbed a -3 m10 (10mm) banjo bolt which was also 1/8th inch. cool. heres the list and website to the parts.
https://www.pegasusautoracing.com/is...asp?RecID=9023 (put in 42 inches and select end a and end b on the first picture which is -3 straight female ends)
and the banjo bolt
https://www.pegasusautoracing.com/pr...asp?RecID=4195
heres a comparison of the sikky banjo and the pegasus banjo (excuse the shitty cameraphone pic) take note of the feed holes size difference

this is the size sikky should use. best part, it bolts right up and while the banjo piece itself is bigger, the bolthole is the same size. no more pressure drop. sweet.
alas, i went to gm dealer, they quoted me at 129 for the gto shifter piece. i showed him a price i got online of $87 and they took 20% off so it came to 103 and i gotta wait a few days. also for you turbo guys, i took my oil feed from a port in the ls block in front of the driver side flywheel dust cover. there are more ports around the block bu this one is post filter, the others are pre filter, so i figure why not run filtered oil to this turbo lol. i will eventually get a different remote oil filter w/ a feed line from there but for now this will suffice.
https://my350z.com/forum/9287926-post122.html
https://my350z.com/forum/9284721-post99.html
https://my350z.com/forum/attachments...d-p7141823.jpg
https://my350z.com/forum/9265270-post55.html
https://my350z.com/forum/9265323-post57.html
Hope that helps.
alas, i have pretty much everything ready to go, however, swap guys need to check the sides of there block for the factory ls dipstick hole and make sure its plugged. i am en route to get this plug (its a freeze plug of some sort is my understanding) and has to be plugged, as our oil pan has the provision for the sikky dipstick. heres the gm part number 12557520
alas, i have pretty much everything ready to go, however, swap guys need to check the sides of there block for the factory ls dipstick hole and make sure its plugged. i am en route to get this plug (its a freeze plug of some sort is my understanding) and has to be plugged, as our oil pan has the provision for the sikky dipstick. heres the gm part number 12557520
^definitely not. this hole has no threads lol. also making an ecu mount for my gm ecu. its going to sit next to the z ecu and be able to completely access it extremely simply for any datalogging, etc.
^way too short. Guys are having traction problems with the factory 3.53 (6mt) rear end. I swapped in a 3.3 (5at) diff and ill see how that goes with my turbo setup. Also take note, some ls1/ls2 gear boxes have different gearing in them so find out what your goals are before you buy
Correct. LS1 T56(found in Fbody) has a longer 1st-3rd where as the MN12 out of the LS2 gto has a very short 1st-3rd..which is good for stock power but once you get up there in power you are better off with the longer 1st-3rd. (ask me how I know). Also the shifter position is different on the GTO than on the Fbody transmissions.
I don't know about that one. I saw another build thread were Sikky included that plug. I think I will give them a ring to see.
Here's a sneak peak at a shifter housing I've designed. Here's a pic from SolidWorks:

It is for the T56 Magnum and will uses the guts from the sikky shifter if you've already purchased it. Sorry for the cell pic:

There's a still a little more work to be done but I got all gigidy when I saw it today.

It is for the T56 Magnum and will uses the guts from the sikky shifter if you've already purchased it. Sorry for the cell pic:

There's a still a little more work to be done but I got all gigidy when I saw it today.
Last edited by QTB; Oct 19, 2011 at 10:19 AM.






