Longshot08

I'm picking up an 86 TA with a 5.0/T5 for a very good price this weekend that is a perfect candidate for a L92 swap. There are tons of L92s pulliuts for sale on ebay (longblock, accessories, harness) in the $2500-5000 range. I know I'm going to ditch the intake, oil pan, and accessories for LS3/LS1 parts (to name a few) which brings me to a decision point.

So I'm thinking I buy a complete pullout and pull and sell unneeded parts off it as applicable that will need to go to get it into the f-body or...

Start more from scratch with an L92 longblock, and piece parts together from various sources. This probably means aftermarket wiring harness, so no AFM, VVT, electronic throttle, utilization but may cost less overall.

Right now I'm in the planning phase and trying to figure out which way im going to go. No real lofty HP goal. Figure 400ish to the wheels with LT's is what Ill get. The "cool modern engine in old car" is my motivation really. I'd like to keep the AFM even though I did just change a failed AFM lifter on my Denali with 125,XXX on it but have to reaearch appliablity with a T-56. Recommendations/advice welcome as I plan this out.

roysatikas

iTrader: (1)

Started my 91 L92 swap due to blowing the trans seal at the track (360 ci 4 bolt etc 700R4) I picked up a 2008 L92 and 6L80E, I will be posting as things develop. Winter project
Good luck

Roy

Longshot08

Looking forward to seeing how you go about it. You get a full pull out with the eng/tranny?

roysatikas

iTrader: (1)

Longshot08

Whats your reasons for wanting to elminate it? Lack of the OBDII or some other reason?

roysatikas

iTrader: (1)

VVT seams to be deleated in all the builds of the gen lV engines I've read so far. Planning on doing more research, thanks for mentioning it
Roy

ShiftyCapone

iTrader: (7)

Yes, it's almost impossible to run in a swap. Even GM deletes it from their crate motors. For your budget you might score an LS3 short block which would make things easier for you without having to sell and or adapt a lot of things.

QwkTrip

iTrader: (22)

Something else to think about....

https://www.thirdgen.org/forums/mid-...ne-peoria.html

I think this engine really wants mid-length runners in the FAST intake. It's only going to get faster from here.

roysatikas

iTrader: (1)

ShiftyCapone

iTrader: (7)

Oh you already have it? Nevermind then, you did well getting all of that for 2400. Mileage is low too. As for Chicago? Mid Ohio actually.

Longshot08

Wow what a deal l. Did you have to pull that yourself or was it out of the donor?

roysatikas

iTrader: (1)

Longshot08

nice find. Look forward to seeing the build.

Pyramid_Head

I also just bought a used bare LS3 block from a 2011 grand sport for my 1988 Camaro sc. I'm thinking about stroking it to a 416-418 soon. I'm really looking forward in your progress bro. Keep us posted.

QwkTrip

iTrader: (22)

The Grand Sport has a dry sump oil system , right?

roysatikas

iTrader: (1)

Thanks , just pulled my gen 1 350 and and will part it out
Roy

Pyramid_Head

Yes. It's a dry sump sytem, although I just have the bare block, so I can easily go either way.

Tibo

iTrader: (15)

You can buy a new one from GM for $4300, I wouldn't think you would have to pay more than $2000 and in my area you can find them for $800-1200.
https://www.gmpartscenter.net/oem-pa...xoCjj8QAvD_BwE

Longshot08

Yeah so with the core I'm looking at $6k ish total (since i dont have a core). I've looked at a few other places too that makes me want to get one with some mileage on it in need of a rebuild.

Aviator857

You may want to look around for the entire donor, I bought a 2k firebird with 96k mile and used alot of parts off it from coparts last year (not to mention I sold a lot of parts off it). All said and done I ended up with about $2800 in the motor/trans after I sold off the other parts including having the donor shipped to my house. I've spent more though since I did BMR kmember, replaced most of the sensors with new AC delcos, and bought all new AC components. I looked at doing a piece mill approach but the more I looked the more I realized it would cost me more in the long run. The SUV's don't go for alot on the insurance auctions. Now if you are going full mod on the motor it may not matter, I just wanted a mild LS1 and convert to manual. But starting with a 4th gen donor almost all the parts will move over, starting with the SUV you will have more to buy, but then again selling escalade parts is probably more lucrative than 4th gen firebird parts.

With the recent hurricanes a lot of flood cars totaled are out there, that was what mine was, though it was running and driving so I had a known quantity. (just understand the risk you have with flood damage)

FWIW if I were to do the piece mill approach I would of gone with the holly EFI (possibly FAST) setup vs OEM PCU.

Longshot08

After some more random searching on ebay and other places.... looks like i can get a full LS3/TR6060 for about $7-9k ish depending on mileage. Did see a full LSA LS3 with TR6060 for $9k which seemed a little too good to be true but who knows.

I plan on throwing in LT headers and the tubular K-member, and other misc stuff so I could try "easy mode" swap at about $10k ish.

Or go piecemeal with a L92 from a truck and piece together:
-intake with fuel rail injectors
-f-body oil pan
-f-body accesory belt system/water pump
-aftermarket wire harness

Of course still need a TR6060 so I could be at $7k if i go the piecemeal L92 route but leaves lots of room for more headaches.

Still have plenty of time to decide but I'm starting to really narrow down my plan here.

Longshot08

I think the hardest thing will be to find someone who wants a rebuilt carb 305 and 5 speed.

johnw999

There is a good supply of gen iv truck engines, and that’s the way I went. VVT/DoD delete it, and start outfitting it with F body accessories and oil pan. I got my starter, alternator, etc from rock auto. I got the accessories brackets from part stores, dirty dingo, and kwik performance. Engine management is where the fun begins. Good luck.

QwkTrip

iTrader: (22)

Longshot, did you click on the link in Post #8 ?