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#26 |
Registered User
![]() Join Date: Mar 2012
Location: Crestline, CA
Posts: 225
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Re: 4l80E/NP205 (Yes, another one)
Here's where I cut the lower or main piece. I used a sawsall.
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#27 |
Registered User
![]() Join Date: Mar 2012
Location: Crestline, CA
Posts: 225
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Re: 4l80E/NP205 (Yes, another one)
Had to make adapter plates. You can buy these from Holley for $90.00. Or I went to my local metal supply and bought 2, 6x6x1/4" plates for $5.00. An hour later with some cutting, grinding, drilling, tapping and painting, this is what you get. (Let the paint dry over night) I used the old LS mounts and the stock, poly small block mounts for patterns.
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#28 |
Registered User
![]() Join Date: Mar 2012
Location: Crestline, CA
Posts: 225
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Re: 4l80E/NP205 (Yes, another one)
All bolted together.
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#29 |
Registered User
![]() Join Date: Mar 2012
Location: Crestline, CA
Posts: 225
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Re: 4l80E/NP205 (Yes, another one)
If you place this in the factory small block mounting holes in the frame (the rear ones) one of the LS holes lines up. There is plenty of room for the starter and A/C.
Now for $20.00 in 1" X .120 DOM tubing and a little time with a bender and welder, I will tie the 2 sides together. Paint. Sure beats $400.00 for a crossmember kit. Now I just have to hope it holds up while 4 wheeling. |
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#30 |
Registered User
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,560
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Re: 4l80E/NP205 (Yes, another one)
Very slick.
__________________
70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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#31 |
Registered User
Join Date: Dec 2012
Location: Springfield, OR
Posts: 30
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Re: 4l80E/NP205 (Yes, another one)
Watching. I'm wanting to put a 4l80e in my 1990 V3500 truck.
__________________
1990 chevy Crewcab K30 454tbi/th400/np205twin stick/14bltFF,eaton posi/D60. 1972 CST K5 350/th350/12blt,eaton posi/D44 1970 K10 SWB 1970 K20 350/th350 |
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#32 |
Registered User
![]() Join Date: Mar 2012
Location: Crestline, CA
Posts: 225
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Re: 4l80E/NP205 (Yes, another one)
Finished lower half of crossmember.
After powder coating I'm into this for $65.00 and 8 hours of my time |
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#33 |
Registered User
![]() Join Date: Nov 2013
Location: Fowler California
Posts: 140
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Re: 4l80E/NP205 (Yes, another one)
Sorry for falling asleep on this everyone. It still will be done, eventually. The truck is currently completely stripped and being restored. One thing led to another and now it is being painted, power doors, motor rebuild, serpentine, fuel injection, the whole 9. I should probably start a build thread for it, and when I get to the point of installing my 4l80 I will post the details of that process here!
__________________
1967 CHEVELLE MALIBU 427/700R4 1971 CHEYENNE 10 350/350 1983 GMC K3500 454/400/205 1987 R10 TBI 350/700R4 2014 CRUZE 2.0 TURBO DIESEL |
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#34 |
Registered User
Join Date: Feb 2011
Location: MA
Posts: 116
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Re: 4l80E/NP205 (Yes, another one)
Thanks for this thread. I to am also doing a 4L80e swap and have been searching for all the details so when I start I hope to turn it around quickly. It seems everyone has some variation.
I have an 87 v2500 TBI 350/400/208. I bought a TBI 454/4L80e out of a low mileage 1991 motorhome. I have the computer and complete harness. The harness has some sort of trans module but I havent had the time to study it yet. I havent seen any 208s used with the 4L80 so it looks like I may need to pick up a 205 tcase. |
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#35 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: 4l80E/NP205 (Yes, another one)
This is a great thread. I picked up a late TH400/NP205 I would like to adapt to 4L80E
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#36 |
Registered User
Join Date: Oct 2011
Location: Prarietown IL
Posts: 118
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Re: 4l80E/NP205 (Yes, another one)
Watching
__________________
1985 GMC K2500. 350/TH400/208. 4:10's. stock. 1987 Chevy V30. 454/TH400/205 4:10's. Stock SOLD. |
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#37 |
Registered User
Join Date: Feb 2011
Location: Under the Truck Dreaming
Posts: 703
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Re: 4l80E/NP205 (Yes, another one)
I know this thread is five months old but I thought maybe someone might be interested in an option that I didn't see mentioned here. I have not used these people for any adapters (my NV4500 bolts directly to my round 6 bolt NP205) but I thought this might help someone else out.
http://www.pirate4x4.com/forum/motor...ngagement.html I think the Trail Tech Fad web site is under construction but at least it points you in the right direction if you are looking at an alternative for an adapter.
__________________
72 K20 Custom Camper, D60, 14BFF, full roller 406 TPI w custom built ECU and yes..it has tow hooks... |
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#38 | |
Registered User
Join Date: Mar 2014
Location: Winkelman AZ
Posts: 1
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Quote:
In the process of a swap and have the 4wd trans as well. If the only problem is the speedo not working in 4 low that's fine with me Posted via Mobile Device |
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#39 |
Registered User
Join Date: Dec 2018
Location: San Bernardino
Posts: 72
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Re: 4l80E/NP205 (Yes, another one)
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#40 |
Registered User
![]() Join Date: Mar 2012
Location: Crestline, CA
Posts: 225
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Re: 4l80E/NP205 (Yes, another one)
It’s bolted in my 70 Suburban.
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#41 |
Registered User
Join Date: Jun 2014
Location: upstate sc
Posts: 2,095
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Re: 4l80E/NP205 (Yes, another one)
I got lucky when I bought my 1991 V3500 with a 4L80 and 205.one year
Only and very hard to find |
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Tags |
4l80e, 4x4, 73-87, np205, tranny swap |
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