Originally posted by RevOD:
yeah the Buick Grand NAtional or T-Type turbos. They are the closest you can get as fas as displacement. They were 3.8's and a 250 is 4.1
Don't forget about the Syclones & Typhoons.
Those are 4.3 size engines & the turbos are Mitsubishi TD06-17C-8cm squared. Flows 550 CFMs. Part number 49179-04000integral wastegate,little small though. But they made 14 psi stock boost pressure.
An upgraded turbo from that is a TDO6H-20G, the 14 CM exhaust housing is a little big for a low stall converter, you would need 2600 for it to really launch well.
They have a T-3 flange 4 bolt pattern,water/oil cooled center section.
You can get those used for $150-200 for a stocker
& 250-400 used, or so for the bigger replacement one.
They are not the biggest or baddest,just another option for a low buck turbo install.
MBHD
