Bellhousing shield for a 1984 K20

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

DCAutomotive

Junior Member
Joined
Jan 18, 2023
Posts
2
Reaction score
1
Location
Omaha, NE
First Name
Tim
Truck Year
1984
Truck Model
k20
Engine Size
383
Doing an engine swap in a 1984 K20. We are installing a BluePrint 383. The shield/cover that goes on the lower parts of the bellhousing was completely bent up. I am trying to find a replacement, but everything I see doesn't look the same. See Pictures. Any suggestions? When trying to install the replacement, it's hitting the 2 tabs on the top and won't go up all the way. Also you can see that the new one angles out on the driver's side, where the OE one curves more. Any help would be greatly appreciated.

You must be registered for see images attach
You must be registered for see images attach
 

HotWheelsBurban

Full Access Member
Joined
Mar 31, 2023
Posts
1,756
Reaction score
3,838
Location
Houston, Texas
First Name
Carol
Truck Year
1990
Truck Model
R2500 Suburban
Engine Size
350
Bet one is for TH400 and the other is for TH 350. IIRC the bells are shaped a little bit differently.
Or...parts have been superseded?
 

nvrenuf

Full Access Member
Joined
Jul 30, 2010
Posts
1,714
Reaction score
1,916
Location
Mobile, Al.
First Name
John
Truck Year
1991
Truck Model
K5
Engine Size
454
What transmission

Bet one is for TH400 and the other is for TH 350. IIRC the bells are shaped a little bit differently.
Or...parts have been superseded?

Those covers are for a manual transmission, most likely an sm465. An automatic converter cover will surround the lower 1/3 of the torque converter.
 

HotWheelsBurban

Full Access Member
Joined
Mar 31, 2023
Posts
1,756
Reaction score
3,838
Location
Houston, Texas
First Name
Carol
Truck Year
1990
Truck Model
R2500 Suburban
Engine Size
350
I know the older transmission used a shaped pan, kind of dished, but I know the 4L60E and '80E that I have, use a flat piece.
 

Rickf

Full Access Member
Joined
Jul 29, 2017
Posts
468
Reaction score
556
Location
Grafton NH
First Name
Rick
Truck Year
1974, 1954 & a 1937
Truck Model
K20
Engine Size
350
Could the difference be between a one piece and two piece rear main cover?
 

clintC

Junior Member
Joined
Jun 4, 2023
Posts
23
Reaction score
23
Location
Louisville, Ky
First Name
Clint
Truck Year
81
Truck Model
C3500
Engine Size
350
Doing an engine swap in a 1984 K20. We are installing a BluePrint 383. The shield/cover that goes on the lower parts of the bellhousing was completely bent up. I am trying to find a replacement, but everything I see doesn't look the same. See Pictures. Any suggestions? When trying to install the replacement, it's hitting the 2 tabs on the top and won't go up all the way. Also you can see that the new one angles out on the driver's side, where the OE one curves more. Any help would be greatly appreciated.

You must be registered for see images attach
You must be registered for see images attach
I'm having same issue with a replacement cover (no original), advertised to fit 81 4 spd....3 bolts from drivers side over are correct, but starter hole is off/"short" by quite a bit
 
Top