89 C30 Crew Cab - Gen V LT1/8L90e Install Questions

[EricU]

I have an 89 C30 Crew Cab that is currently under the knife to have a PB Fab Front and Rear bagged suspension installed so I can look at my 22” Alcoas and clean the top of the hood easier.

I am looking at repowering my C30 CC with a 2016 (+/-) Gen V LT1/8L90e combo and have some questions. I will probably source the engine through a supplier that strips cars and pallets up the entire engine/tranny/ECU/pedal and will even swap out the cam to dump the VVTs and tune the ecu to dump the AFM, I used them on a previous L99/6L80e swap into an old (65) Caddy.

The PB Fab front kit uses a Rack n Pinion steering setup but the Gen V LT1s don’t have a PS pump?

• Has anyone any experience with the aftermarket solutions in a Squarebody? I have seen Dirty Dingo’s solution and All American Billet looks to have a bracket and pully


• What are the physical dimensions of the 8L90e – I am assuming that I will need to tunnel the truck, which isn’t that big a deal.

Both Holley and Moroso make oil pans so that seems pretty straight forward.

I already planned on getting a Dakota Digital dash for the pig, so gauges should be taken care of.

• I would like to keep the dual saddle tanks, Can I add a third tank and feed it from the saddle tanks?
• Are there any other major or semi-big items that I will need to deal with and plan for?

[LS short box]

Sounds like a good project.
Just a note in regards to the 8L90E it doesn't get a lot of love on LS1tech.com. Go take look in the auto trans forum for comments.

[EricU]

No one? I can't be the first, I am too old for that.

[87chevy.com]

Originally Posted by EricU

No one? I can't be the first, I am too old for that.

First for what?
search button my friends, 3-4 of us including my self have build threads.

Power steering, lools like you found solutions.
Fuel systems a fuel system, plan it out amd youll be fine.

If your goo wiring, there's a gen5 connector kit on ebay.


Clint

[EricU]

Originally Posted by 87chevy.com

First for what?
search button my friends, 3-4 of us including my self have build threads.

Power steering, lools like you found solutions.
Fuel systems a fuel system, plan it out amd youll be fine.

If your goo wiring, there's a gen5 connector kit on ebay.

Clint

I have certainly hit the "search button" more than once. I guess stupid me, I haven't had much luck finding other builds.

I have done an L99/680e swap into my 65 Caddy but have no experience with the Gen V LT1.

I did see some of your fab work, quite impressive BTW.

I was looking for some input from others on their experiences pertaining to the Gen V LT1 swap and anything that they ran into.

The Dirty Dingo PS pump setup looks pretty involved vs the All American Billet system uses a KRC Pro Series III Pump but I am not sure which pully or damper it uses. Hooker lists a PS pump bracket for the LT4 but doesn't mention the LT1 and have heard rumors of it being ill-fitting, Eddie Motorsports has one also, then there is the electric Volvo pump....

[87chevy.com]

Power steering brackete are specific as like LS... car vs truck balancer spacing is different.

Lt1 has a double sided belt no? Gonna be hard to find a belt driven solution without scrapping the waterpump and going LS waterpump ,adapter and custom brackets.

Clint

[EricU]

My biggest problem is that I don't have the motor in front of me yet as it will be a few weeks out.

I did find that the L8T PS bracket GM P/N 12654286 should fit a type 2 PS pump to the LT1.

I haven't really worked with a type 2 PS pump before as my LS swap into my old Caddy was pretty straight forward. I need to dig into it to figure out a remote reservoir to work with the factory hydroboost and Unisteer R&P.

I "think" that I would need to change to the LS style water pump which doesn't really bother me as they are quite available.

I have a hard time swallowing the Holley Mid Mount pricing but I don't really want to spend the time that I did designing/building a serp system for my old Caddy 472 motor....