Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

70 Chevelle LY6/4L80 Swap

Thread Tools
 
Search this Thread
 
Old 12-17-2019 | 09:32 PM
  #21  
Che70velle's Avatar
ModSquad
10 Year Member
iTrader: (6)
 
Joined: Jan 2012
Posts: 6,655
Likes: 3,761
From: Dawsonville Ga.
Default

Originally Posted by jellish
Do you have a link to that, or is it their "dead head pump" option? I was going to go with Tanks Inc. notched unit, but I noticed the filter/regulator they carry isn't setup for high-hp applications...
I’m running the Tanks Inc tank. Bought it with the 255 pump and corvette regulator. Worked very well with my LS2/LS3 setup. Now with my 434, I installed a 450 pump in the same basket, which didn’t work with the Corvette regulator. Had to go with an adjustable FPR to get pressure down to 58, and obviously an in-line fuel filter. Overall very pleased with the tank setup. I’m not running the notched setup. My exhaust is dumped in front of axle.
Old 01-22-2020 | 03:07 PM
  #22  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default

A couple updates, I've got all the wiring out and plan on spraying the engine bay this weekend and start getting all the new wiring installed. A lot to get done by my goal in April.

Old 01-22-2020 | 03:08 PM
  #23  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default


Old 01-27-2020 | 11:07 AM
  #24  
SHINER's Avatar
TECH Veteran
iTrader: (18)
 
Joined: Sep 2005
Posts: 4,192
Likes: 0
From: SW Houston
Default

will the forward mounts cause problems with oil pan clearance?
Old 01-27-2020 | 12:12 PM
  #25  
Stampede4ever's Avatar
TECH Fanatic
 
Joined: Dec 2005
Posts: 1,412
Likes: 28
Default

Is your power steering pulley for corvette?

Thanks
Old 07-24-2020 | 10:30 AM
  #26  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default

Yes it is off a C5 Corvette. That's what Holley supplies with there mid mount setup.
Old 07-24-2020 | 10:32 AM
  #27  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default

More progress on the swap, the engine and trans are in and all lines are ran. The wiring is getting started now.



The following users liked this post:
Che70velle (07-27-2020)
Old 08-01-2020 | 01:20 PM
  #28  
gnx7's Avatar
TECH Junkie
20 Year Member
iTrader: (28)
 
Joined: Nov 2002
Posts: 3,520
Likes: 189
From: San Francisco, CA
Default

making progress! I likey....
Old 10-13-2020 | 05:58 AM
  #29  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default

Getting closer to hearing it run!





Old 10-13-2020 | 07:46 AM
  #30  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,222
Likes: 1,512
From: The City of Fountains
Default

If you need help with the Holley EFI tuning, please let me know.

Andrew
Old 10-13-2020 | 09:14 AM
  #31  
user 4737373's Avatar
Banned
 
Joined: Feb 2013
Posts: 3,546
Likes: 203
Default

Your installation looks great. How much clearance do you have between the PS pump reservoir and the steering box?
Old 10-13-2020 | 09:24 AM
  #32  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default

Todd,
Thanks! I don't have much at all I'm afraid I may have to loosen the gearbox up and let it drop to get the hose on the pump and then slide it back up. Other than that everything has fit pretty well. I'm having to plug the MAT sensor into the breather tube where I mounted the IAT sensor. The 4L80E does fit with some massaging of the tunnel at the tail housing but it is definitely tight.
Old 10-13-2020 | 09:46 AM
  #33  
user 4737373's Avatar
Banned
 
Joined: Feb 2013
Posts: 3,546
Likes: 203
Default

I will pass along your report the the team that designs the Holley accessory drive components. I had heard in the past that they were considering designing an optional remote PS reservoir for the Holley mid-mount set-up, so they might find your information useful towards that effort. Yes, the 4L80 install is an exercise in patience for sure. The transmission mount that the Hooker Blackheart kit is designed around is 1-3/4", so you may want to confirm the mount you are using matches that height. The Energy Suspension mount that guys commonly use is taller than that if you install the pre-load plate they state is required to be used. The Hooker Blackheart and Prothane poly mounts are both 1-3/4" tall.

Last edited by user 4737373; 10-13-2020 at 11:00 AM.
Old 10-13-2020 | 11:01 AM
  #34  
user 4737373's Avatar
Banned
 
Joined: Feb 2013
Posts: 3,546
Likes: 203
Default

I was able to confirm that the remove reservoir is something that they are working on. No tentative release date is available at this time.
Old 12-16-2020 | 03:33 PM
  #35  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default

Update! The car runs and fired right up with the Terminator X Max. Definitely can't say enough good things about the fitment of everything using the Holley components. Just a few odds and ends to finish up before driving it now.


Old 12-16-2020 | 03:55 PM
  #36  
user 4737373's Avatar
Banned
 
Joined: Feb 2013
Posts: 3,546
Likes: 203
Default

Congratulations, I know it feels good to reach the point that you’re at.
Old 12-16-2020 | 10:28 PM
  #37  
Che70velle's Avatar
ModSquad
10 Year Member
iTrader: (6)
 
Joined: Jan 2012
Posts: 6,655
Likes: 3,761
From: Dawsonville Ga.
Default

Great news man! I know your excited and I’m looking forward to seeing this thing in person.
Old 05-13-2021 | 08:33 AM
  #38  
FASTCRAIG's Avatar
Teching In
 
Joined: Dec 2018
Posts: 12
Likes: 0
From: Huntington, WV
Default

Nice Chevelle. I'm doing an LY6/4L80 swap into an 83 MCSS. What flex plate did you go with? Did you use a spacer?
Old 05-13-2021 | 08:46 AM
  #39  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default

I didn't use a spacer, I'll find the part number of the flexplate I purchased from Summit and send you a message with it.
Old 05-13-2021 | 08:54 AM
  #40  
Chris70Chevelle's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2019
Posts: 58
Likes: 15
From: Gainesville, GA
Default

I have put almost 1k miles on the swap so far and everything is great except for when the motor and transmission is operating temperature the transmission tries to stall in reverse like the converter is locking up. In all the forward gears everything is great and when the transmission is cold reverse is great just not once warm. My transmission guy thinks this may be a pump issue in the transmission so I'm working on getting a core to have built and just swap it out. The car is averaging around 18mpg and probably still a little more timing left to put it in with the Terminator X Max.




Quick Reply: 70 Chevelle LY6/4L80 Swap



All times are GMT -5. The time now is 12:48 AM.