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View Full Version : New LT1 or general 5 motor swap questions.



chacho44
01-19-2017, 12:59 PM
Has anyone, or know someone that has done a 2015 LT style motor in there cars? I'm still new to these motors and wondering if the swap is similar to ls. I have a lead to a 2016 LT1 from a wrecked corvette just and wouldn't mind swapping it in my 71. Thanks

Schwartz Performance
01-19-2017, 03:23 PM
As of today:

Motor mounts: Dirty Dingo
Headers: Ultimate Headers
Oil pan: Modify the stock, buy a Moroso fabbed pan, or Holley will have theirs available in March.
Fuel system: Restomod Tanks w/ ZL1 pump module
Cooling system: BeCool, or many others
Control system: Chevrolet Performance, Speartech
Accessory drive: Dirty Dingo, or another kit is available through Schwartz Performance

Where to buy any and all parts listed above: Schwartz Performance!

chacho44
01-19-2017, 03:27 PM
Hmmmmmmm

piratebaseball
01-25-2017, 06:30 PM
Are there any adaptors yet to run a 4l80 transmission where you can put the top bolt that is off set in? Any solutions yet for running power steering and AC on the LT4 with a stock 67 camaro subframe?

Schwartz Performance
01-25-2017, 08:06 PM
Are there any adaptors yet to run a 4l80 transmission where you can put the top bolt that is off set in? Any solutions yet for running power steering and AC on the LT4 with a stock 67 camaro subframe?

Nothing for the 4l80 bolt. The 4l80 doesn't have a removable bell so might not see anything for a while. But think about LS's with a fabricated steel pan, that gets rid of two mounting bolts. I don't think it's cause an issue.

Otherwise an adapter plate could be machined or fabbed up to gain the bolt, and machine a torque converter spacer.

We have a source for an LT4 wet sump serp drive. Not 100% sure if it fits a stock Camaro subframe/steering box though.

Right now, the LSA is the best deal due to the parts availability and options.. But we've sold several LT4's and swap parts.

-Dale

Toddoky
01-25-2017, 10:40 PM
Are there any adaptors yet to run a 4l80 transmission where you can put the top bolt that is off set in? Any solutions yet for running power steering and AC on the LT4 with a stock 67 camaro subframe?
The top bolt being left out when installing a 4L80 trans behind an LT creates the same scenario as installing a TH350, TH400, Powerglide etc... behind an LS. Swappers have been doing that for years with no widespread reports of issues in street car use. Your issue will be to find a suitable flexplate with the 8-hole LT crank pattern. If you find a flexplate (check GM performance) you can use a 4L80 LS type torque converter as the crank end planes and pilot geometry are shared between the engines. You could also use a Gen-3 torque converter with the common crank spacer that's been used for years.

andrewb70
01-26-2017, 10:46 AM
I believe the LT 8 bolt flex plate is the same bolt pattern as the LSA engine 8 bolt flex plate.

Andrew

Toddoky
01-26-2017, 11:09 AM
I believe the LT 8 bolt flex plate is the same bolt pattern as the LSA engine 8 bolt flex plate.

Andrew
I've not had the opportunity to confirm that yet, but it may be the case.

Schwartz Performance
01-26-2017, 08:47 PM
I believe the LT 8 bolt flex plate is the same bolt pattern as the LSA engine 8 bolt flex plate.

Andrew
This is correct. Clutch kits (flywheels) for the LSA and LSX fit the LT's as well.
Same part numbers.

-Dale

Jerems
01-27-2017, 06:29 AM
I'm doing an LT4 engine in my Chevelle...Dale has answered most of your questions but there is more and more info is popping up around the interwebs:

User Cdog on here is installing a dry sump LT4 in his Camaro, thread about his headers:
https://www.pro-touring.com/threads/122644-LT1-LT4-Stainless-Steel-Headers-for-Art-Morrison-Chassis****The-Eagle-Has-Landed*****

Super Chevy Article of putting LT4 in a 67 Chevelle:
http://www.superchevy.com/how-to/engines-drivetrain/1612-how-to-get-a-gen-v-lt4-into-your-classic-chevy/

68 Camaro with a wetsump, he made a nice PDF with good information:
http://automobileman.com/
http://automobileman.com/wp/wp-content/uploads/2016/12/Gen-V-LT1-and-LT4-installation-guide.pdf

And I'm sure there is more I'm missing...I know there is a Nova getting one as well.

Good luck with the swap if you go ahead with it!

camaro69boy
02-04-2017, 07:49 PM
I have a LT4 in my 69 Camaro. Images can be found in the build thread link.

Mingus
02-05-2017, 08:35 AM
I've got a 5,100 mile LT1/8L90 that's been sitting Under the bench since September '16 There were hardly any swap parts then. There's more coming all the time now. I'd love to use the tranny, but I think the pan is going to be too low (3" more from output shaft centerline to bottom of pan than my Turbo 350). Anybody seen an 8L90 in 64-67 A-bodies yet? I'll probably either go 4L70 or manual.
136832

chacho44
02-26-2017, 10:24 PM
Well I picked up my L86 but I been contemplating on selling it. If I keep it I'm wondering which trans I should run, manual transmission would be fun but really would prefer an auto, new 8speed would be cool if all fits the tunnel, and ground clearance.

Hoffman2099
02-28-2017, 09:54 AM
Just curious, why are you thinking of selling it?

chacho44
03-02-2017, 10:22 AM
I kinda wanna focus on my wheels n tires, tub, and frame kit. I can use this money towards it.

Mingus
03-12-2017, 09:25 AM
Well I picked up my L86 but I been contemplating on selling it. If I keep it I'm wondering which trans I should run, manual transmission would be fun but really would prefer an auto, new 8speed would be cool if all fits the tunnel, and ground clearance.

I'm thinking of selling my 8L90. The 64-67 A-body tunnel is smaller than the 68-72 so I'm pretty sure I'm going to go 4LXX in mine. I think ground clearance would also be an issue.

Mingus
03-12-2017, 09:44 AM
As of today:

Motor mounts: Dirty Dingo
Headers: Ultimate Headers
Oil pan: Modify the stock, buy a Moroso fabbed pan, or Holley will have theirs available in March.
Fuel system: Restomod Tanks w/ ZL1 pump module
Cooling system: BeCool, or many others
Control system: Chevrolet Performance, Speartech
Accessory drive: Dirty Dingo, or another kit is available through Schwartz Performance

Where to buy any and all parts listed above: Schwartz Performance!

Has anyone seen a PS pump kit that uses the Gen V Camaro accessories yet? I have seen several that use the LS water pump and a truck balancer pulley. Also one that uses the driver's side offset truck LT water pump and balancer pulley. Holley has a Sniper EFI tank for my Cutlass. Anybody have experience with these yet? A friend has a Rick's Vaporworx tank in his '67 Chevelle. Very nice piece, but also a lot of $$$$.

Schwartz Performance
03-12-2017, 10:12 AM
Nobody that I know for the PS pump with OE accessories.

Holley sniper tanks are TanksInc tanks, and they appear to use the same pumps too. Plenty of track record with tanks inc.

Mingus
03-18-2017, 03:52 PM
Thanks for the info. Can you provide me with a price for a Tanks Inc setup for a Gen V in a 1966 Cutlass? Thanks.

Schwartz Performance
03-18-2017, 04:22 PM
Thanks for the info. Can you provide me with a price for a Tanks Inc setup for a Gen V in a 1966 Cutlass? Thanks.
Tanks Inc doesn't support PWM controlled fuel pumps; it'd be best to go with a Ricks/RestoMod tank with an OE pump module.
Send me an email
Dale at SchwartzPerformance dot com

-Dale

dhutton
03-23-2017, 04:41 PM
These look great, a real step forward:

https://www.pro-touring.com/threads/124638-Drive-Junky-LT1-and-LT4-Gen-5-serpentine-accessory-drive-systems-now-shipping?p=1224850#post1224850

Don

Jerems
03-23-2017, 06:26 PM
These look great, a real step forward:

https://www.pro-touring.com/threads/124638-Drive-Junky-LT1-and-LT4-Gen-5-serpentine-accessory-drive-systems-now-shipping?p=1224850#post1224850

Don

Should have mine on order Monday! Zach is great to deal with can't wait to get it on the LT4!

Bowtie racing
03-28-2017, 08:28 AM
LT-4 is a lot of engine for the price.

andrewb70
03-28-2017, 11:12 AM
Looks like the Holley pan is shipping.

Andrew

chuckd71
04-12-2019, 01:03 PM
Did any of you guys ever try to use the 8l90? I know for the 6l80 people would use a G8 trans pan for clearance, but I'm wondering joe low an 8l90 pan would be in a Chevelle. Thinking of picking up a L86 / 8l90 combo now that they are fairly cheap to replace my l92/ t56.

qnitro
04-17-2019, 04:02 PM
I just picked up a LT4 blower kit complete, blower, intercooler, pump, lines reservoir... I also got a L83 with the 6L80 with 18k miles..3500 total investment.. now to get it into my grand national

andrewb70
04-19-2019, 01:07 PM
I just picked up a LT4 blower kit complete, blower, intercooler, pump, lines reservoir... I also got a L83 with the 6L80 with 18k miles..3500 total investment.. now to get it into my grand national

Holley now have LT specific engine side clamshells and poly inserts. They are designed to work with various Holley engine side LS swap mounts. In other words, any Holley LS swap kit will now work with the LT engines when used with these special clamshells. The Holley LT oil pan will work in a g-body.

Andrew

qnitro
04-19-2019, 06:25 PM
Holley now have LT specific engine side clamshells and poly inserts. They are designed to work with various Holley engine side LS swap mounts. In other words, any Holley LS swap kit will now work with the LT engines when used with these special clamshells. The Holley LT oil pan will work in a g-body.

Andrew

thanks.. Im gonna look into it..

Toddoky
04-20-2019, 05:38 PM
thanks.. Im gonna look into it..
Andrew’s information about the Holley LT mounts is correct, but it won’t help you much in regards to your G-Body. The Hooker Blackheart G-Body LS swap engine mounting brackets are designed around the use of the original GM clamshell mounts that bolt to the frame of the car (AKA 2292 mounts), not the 4th-gen F-Body LS1 type clamshells (3364) that the new Holley LT engine clamshells are based on. The Holley 302-50 LT oil pan will be useful to you, but there’s not much else in the Hooker Blackheart system that will be at this point in time.

qnitro
04-20-2019, 05:56 PM
Andrew’s information about the Holley LT mounts is correct, but it won’t help you much in regards to your G-Body. The Hooker Blackheart G-Body LS swap engine mounting brackets are designed around the use of the original GM clamshell mounts that bolt to the frame of the car (AKA 2292 mounts), not the 4th-gen F-Body LS1 type clamshells (3364) that the new Holley LT engine clamshells are based on. The Holley 302-50 LT oil pan will be useful to you, but there’s not much else in the Hooker Blackheart system that will be at this point in time.

I figure most my stuff will be one offs... I picked up my L86 Today, I have a TR6060 being built with a 2002 Fbody tail housing..I got the Blower kit in yesterday, Im going to do a Wegner LT4 Wet sump drive set up.. I think I can use the Holley Pan, and fab the frame brakcets..

andrewb70
04-20-2019, 06:39 PM
Woops. Sorry Todd!

Andrew

Toddoky
04-20-2019, 06:46 PM
If you are prepared and willing to fabricate your own brackets, I would highly recommend using the Holley LT clamshell mounts Andrew mentioned on your engine. They are designed to compensate for the mounting bosses on LT block extending 3/8” further out from the block than the bosses on the LS block and will make it easier for you to get the crankshaft height as low as possible.

Toddoky
04-20-2019, 06:51 PM
No worries Andrew, it’s hard to keep all the details straight with all these different parts.

qnitro
04-25-2019, 08:15 PM
I just bought a near new LT1 and bought a LT4 blower.. talked to Casey over at Wagner, gonna do his kit on the accessory drive, dirty dingo motor brackets..and figure out a mount for my TR6060.. haven't decided what to do for harness and comp..the pan I'm going to use like Andrew said using the Holley pan

Schwartz Performance
04-26-2019, 06:12 AM
I just bought a near new LT1 and bought a LT4 blower.. talked to Casey over at Wagner, gonna do his kit on the accessory drive, dirty dingo motor brackets..and figure out a mount for my TR6060.. haven't decided what to do for harness and comp..the pan I'm going to use like Andrew said using the Holley pan

Nice. The LT1/4 heads are different so you'll need an adapter plate. There are a few companies that sell swap kits, I got most of my parts from https://lsa-conversion-store.myshopify.com/ - called them and got the stuff required for the same swap. Make sure Casey knows it's an LT1 with plates so you can get the correct length belt, as that will change slightly.

-Dale