4L80E retrofit questions
Thread Starter
Racer
Joined: Jul 2001
Posts: 399
Likes: 1
From: Toronto Ontario
4L80E retrofit questions
I'm in the process of installing a 4L80E in my 88 C4.
1) I was going to purchase a 153T 400CI flexplate for this swap but the 4L80E torque converter bolt mounting circle diameter is too large for the 153T flexplate. I can't drill it because the hole will be too close to the ring gear. Which flexplate should I use?
2) Can I use the stock 700R4 shifter with the 4L80E?
3) What are the known stock internal "weak" parts in this transmission?
:cheers:
1) I was going to purchase a 153T 400CI flexplate for this swap but the 4L80E torque converter bolt mounting circle diameter is too large for the 153T flexplate. I can't drill it because the hole will be too close to the ring gear. Which flexplate should I use?
2) Can I use the stock 700R4 shifter with the 4L80E?
3) What are the known stock internal "weak" parts in this transmission?
:cheers:
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: 4L80E retrofit questions (vette_tweak)
I'm in the process of installing a 4L80E in my 88 C4.
1) I was going to purchase a 153T 400CI flexplate for this swap but the 4L80E torque converter bolt mounting circle diameter is too large for the 153T flexplate. I can't drill it because the hole will be too close to the ring gear. Which flexplate should I use?
2) Can I use the stock 700R4 shifter with the 4L80E?
3) What are the known stock internal "weak" parts in this transmission?
:cheers:
1) I was going to purchase a 153T 400CI flexplate for this swap but the 4L80E torque converter bolt mounting circle diameter is too large for the 153T flexplate. I can't drill it because the hole will be too close to the ring gear. Which flexplate should I use?
2) Can I use the stock 700R4 shifter with the 4L80E?
3) What are the known stock internal "weak" parts in this transmission?
:cheers:
2.) No first hand knowledge, But I would suspect it would.
3.) See the last sentence of #1.
Nothin' to it. Good luck, and...
RACE ON!!!
Thread Starter
Racer
Joined: Jul 2001
Posts: 399
Likes: 1
From: Toronto Ontario
Re: 4L80E retrofit questions (CFI-EFI)
thanks for your reply...Will a 168T starter fit in my 88 C4? I thought the vettes required the smaller diameter 153T flexplate because there was no room for the 168t and starter. :confused:
:cheers:
:cheers:
