my ls1 ar5 swap build up! - Pontiac Solstice Forum
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post #1 of 89 (permalink) Old 10-07-2012, 03:25 PM Thread Starter
Join Date: Sep 2012
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my ls1 ar5 swap build up!

here is my current project, I bought the car about a year ago, 06 NA 2.4 5-speed.

scored a ls1 from a vette on craigs list and i am bolting it to the stock ar5.
this is my winter project so i will update as i make progress.

motor out!

the new motor

torn down for new bearings, rings, ARP hardware etc..

Z06 cam

ls6 springs

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post #2 of 89 (permalink) Old 10-07-2012, 03:49 PM Thread Starter
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How to connect the transmission!

well after researching forever i couldnt find much info on this setup so i'll try to give as much info as i can.

i am using the bellhousing adapter from advance adapters for a jeep ax-15 to chevy w/ 168tooth flywheel

i had two tabs welded to the lower portion of the bellhousing to allow it to bolt to the motor with more bolts

the bellhousing

tabs i had welded

the trans needs to be spaced 3/8" from the motor so a 3/8" spacer from summit was used. the spacer does not connect the entire circumference of the bellhousing so i cut some steel to extend the spacer the complete 360.

here is the spacer, see how it does not make a complete circle

the bellhousing needs to have a hole made in the side for the internal slave cylinder line to pass thru. *note: the slave from the na solstice will not work it is too tall, i had to order the gxp slave, it is shorter.

also the side of the bellhousing needs to be ground slightly around the starter for clearance

the bellhousing came with a new pilot bearing, however you must use a roller pilot bearing for a 2004 2.8l chevy colorado. it fits in the outer ring of the crankshaft allowing the input shaft to fit perfectly inside it. a needle style pilot bearing will sit too far inside the crank and not come in contact with the input shaft


the slave cylinder will need some spacers placed behind it, 3/4" for it to be completely compressed when the trans is mated to the engine.

I am using a LUK clutch, pressureplate for a Z06 vette with a 168t flywheel

the two attached

side view
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post #3 of 89 (permalink) Old 10-07-2012, 04:04 PM Thread Starter
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the motor i am using has the batwing style oil pan from a c5 vette, which would come in contact with the factory solstice motor mounts, so rather than buying a new oil pan i just cut the stock mounts completely off and made some new ones

i also notched the frame rails to clear the bellhousing, and spaced the rack and pinion about 5/8" foward to clear the balancer

the c5 exhaust manifolds would not clear the lower crossmember, so i bought a used set of camaro manifolds on ebay

they are very shiny

test fitting


i test fit the hood the other day, its a tight fit, had to cut the middle rib from the throttlebody, other than that plenty of room!
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post #4 of 89 (permalink) Old 10-07-2012, 04:09 PM Thread Starter
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still a lot of work to do, next on the list is to order a radiator $$$$$$, build an exhaust, do some plumbing etc.

relocated the battery to the trunk today, some allthread and scrap aluminum turned into this

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post #5 of 89 (permalink) Old 10-07-2012, 04:19 PM
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WOW!!!!!! I admire your vision for the build and will keep a close eye out for any updates. I am looking forward to seeing the finished product. How long would take to complete? Thanks for sharing.
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post #6 of 89 (permalink) Old 10-07-2012, 04:28 PM Thread Starter
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thanks, my plan is to have it done before spring next year, the only reason it will even take that long is because i am buying things as money allows, but all to be expected. cant wait to drive it again!
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post #7 of 89 (permalink) Old 10-07-2012, 05:18 PM
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looking great so far! let me know how the wiring part of it goes!!

2008 Agressive Red GXP- Auto trans
Magnaflow Exhaust, Dejon CAI, DDMworks IC tubes, Dejon BOV spring, Solo High flow Cat, Trifecta tuned, HAHN Racecraft intercooler, Werks phenolic spacers, Snow stage 3 methanol injection, ASAP carbon fiber kit, fog light and backup light covers.

Album of my mod pics
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post #8 of 89 (permalink) Old 10-07-2012, 06:19 PM
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I love to see at home V8 swaps. I'm in.


She's an 09 Brazen GXP, Trifecta tune, DDM Race Bckbne,OCC,fndr trim,center console,coilcover and LVKFCB, WERKS tank covers, Hahn IC, KS reBar, Dejon lwr intake,IC and TBE pipes, Solo HF cat with Magnaflow 3" exh, VDI doors, B&G coilovers, ASAP mesh covers, Norms f430 bumper,fenders,side skirts, GTO CAI hood and rear diffuser, Gravana J2's, ZOK bars, custom projector LED Halo headlights and taillights, custom WR & "Madmods" CF dash, pillar & door sills, JPM shifter
Next, making a hardtop
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post #9 of 89 (permalink) Old 10-07-2012, 08:21 PM
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Cool. In for updates.

What is your expected power output with that cam? Custom driveshaft?

Mysterious GXP
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post #10 of 89 (permalink) Old 10-08-2012, 02:08 AM
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I am copy this to JohnRR we are working on His
73 big block. 454.
Great post.

08 PW SKY R/L 5-spd,The Wolf
Winner Goodyear Bimp flight 2010 NASSM
Best of Show Old Bridge,NJ 2011
Winner best interior 2012 NASSM
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post #11 of 89 (permalink) Old 10-08-2012, 06:31 AM
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Subscribed (pics?)

Does modified 3/8 bellhousing spacer mean no one offers a complete 3/8 bellhousing spacer?

2006/#482/First 1,000/Triple Blk/2.4 Manual/BCCoilovers/JPM Shifter (classic white w/black 5spd pattern)

2009/#480/GXP of 1266 Targa Coupes/Aggressive/Silver Metallic Stripe/Auto/Optional Polished Split Spokes/GMPP/Solo Mach Shorty/Norms Front GXP Splitter/BCCoilovers/DDM Backbeam & Probeam

LowLife handle simply means likes lowered cars

Last edited by LowLife1; 10-08-2012 at 11:10 AM.
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post #12 of 89 (permalink) Old 10-08-2012, 07:02 AM
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This is FASCINATING! Thank you for the thread & photos. I'll love to follow along.

Owner of "Campbelle", a Brazen 2008 GXP ... with mods piling up...
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post #13 of 89 (permalink) Old 10-08-2012, 07:36 AM
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Location: North Vancouver BC
Posts: 5,494
Just curious - are you a V8 fan and just wanted that in there? A tuned LNF would easily equal the LS1 output, otherwise, and would be dead easy to bolt in there. Although I know a lot of guys (self included) enjoy the fabrication exercise.

Anyway, nicely detailed swap thread, always nice to see good pictures and descriptions.

Current fleet:
1957 Jamaican bodied MGA
1958 MGA Twin Cam (race car)
1962 MGA Deluxe Coupe
1969 MGC roadster
1971 Jensen Interceptor
2009 Pontiac Solstice GXP Coupe
2007 BMW Z4M coupe
Recently departed: 1965 Jensen CV8, 1969 Lamborghini Islero S, 1988 Pontiac Fiero GT
Mods at

Bill in BC
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post #14 of 89 (permalink) Old 10-08-2012, 07:43 AM
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I am interested in how you are planning on tuning the ECM. Which ECM are you using? One of the bigger challenges others doing swaps have had is getting the ECM to talk with the engine and the BCM. There are still issues with the cruise control for example.

When DDM Works started doing LS swaps, they initially could get the engine to run or the AC to work but not both at the same time. They also had to build a custom cable with specific pinout changes to get the BCM and ECM talking.

Rob the Elder

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post #15 of 89 (permalink) Old 10-08-2012, 12:58 PM
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How can the engine not run, but the AC work?

V-8 B8
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