4.8 ly2 need some help guys
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Teching In
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4.8 ly2 need some help guys Ok to start this off I’m such a noob that I have no idea about ls motors but I have been researching ok and so far I’m at a stand still with my current project. Here’s what I need help figuring out!!
ok here it goes:
the ls4 can fit the f40 (fiero, g6) tranny straight bolt up but with a custom starter mount.
i was also told that the ls4 can fit the t56 and t56 magnum tranny’s.
the ls 4.8 ly2 can fit a t56 and t56 magnum bolt straight bolt up.. sooooooo
that leads to my question couldn’t the ly2 4.8 ls bolt right up to the f40 fiero/g6 tranny as well???
ok here it goes:
the ls4 can fit the f40 (fiero, g6) tranny straight bolt up but with a custom starter mount.
i was also told that the ls4 can fit the t56 and t56 magnum tranny’s.
the ls 4.8 ly2 can fit a t56 and t56 magnum bolt straight bolt up.. sooooooo
that leads to my question couldn’t the ly2 4.8 ls bolt right up to the f40 fiero/g6 tranny as well???
Ok to start this off I’m such a noob that I have no idea about ls motors but I have been researching ok and so far I’m at a stand still with my current project. Here’s what I need help figuring out!!
ok here it goes:
the ls4 can fit the f40 (fiero, g6) tranny straight bolt up but with a custom starter mount.
i was also told that the ls4 can fit the t56 and t56 magnum tranny’s.
the ls 4.8 ly2 can fit a t56 and t56 magnum bolt straight bolt up.. sooooooo
that leads to my question couldn’t the ly2 4.8 ls bolt right up to the f40 fiero/g6 tranny as well???
ok here it goes:
the ls4 can fit the f40 (fiero, g6) tranny straight bolt up but with a custom starter mount.
i was also told that the ls4 can fit the t56 and t56 magnum tranny’s.
the ls 4.8 ly2 can fit a t56 and t56 magnum bolt straight bolt up.. sooooooo
that leads to my question couldn’t the ly2 4.8 ls bolt right up to the f40 fiero/g6 tranny as well???
Thread Starter
Teching In
Joined: Jan 2018
Posts: 13
Likes: 0
Thread Starter
Teching In
Joined: Jan 2018
Posts: 13
Likes: 0
Also on a side note!?!Would you be able to get me some exterior dimensions of your ls4?Like passenger side to driver side so I can know the width, preferably the farthest out pulley .Then length of it from the front of it to the back of it as if it was front of car to windshield? I would greatly appreciate it!!
TECH Senior Member
Joined: Jun 2016
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From: Central Cal.
The 4.8L uses the same tranny bolt pattern as every other Chevy engine since '55. ONLY the LS4 has the FWD mounting face. The LS4 is the odd cousin in the LS family.
Last edited by G Atsma; Jan 21, 2018 at 02:47 PM.
Thread Starter
Teching In
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Only problem I have with the 4.8 is I need a smaller more compact manual transmission to attach it to. Any ideas?
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Verdad Gallardo Thread Starter
Teching In
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TECH Senior Member
Joined: Jun 2016
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From: Central Cal.
Before committing to a layout, I would be sure there is a transmission that will support it. Have you researched how many cars there are with commonly available transverse V8/manual transmission combos? The answer is next to none, if that.
Better to look before leaping...
There are FAR more possibilities with a longitudinal layout, as there are a number of Porsche trannies that will do the job.
Better to look before leaping...
There are FAR more possibilities with a longitudinal layout, as there are a number of Porsche trannies that will do the job.
TECH Senior Member
Joined: Jun 2016
Posts: 22,306
Likes: 3,621
From: Central Cal.
One thing to know, the OEM LS4 setup had problems. NOT with the engine, but the transmission. I think the engine was just too much for the drivetrain. I think the tranny was originally made for a V6, then beefed for the 5.3, hoping it would do. It did, but barely. The forums dealing with the LS4 cars discuss the trans troubles constantly. It is NOT a good setup. What is your customer actually looking for, and more precisely, WHAT exactly are you building?
Also on a side note!?!Would you be able to get me some exterior dimensions of your ls4?Like passenger side to driver side so I can know the width, preferably the farthest out pulley .Then length of it from the front of it to the back of it as if it was front of car to windshield? I would greatly appreciate it!!