If anyone needs a bellhousing plate to bolt a 60's,70's GM SBC pattern bellhousing to the 4200 I have them in stock. 3/8" steel laser cut and cnc machined for the bolt holes. The dowel pins are in the same location on the 4200 as the earlier (194/292 & SBC) transmission.

Last edited by efi-diy; 08/28/13 10:32 PM.
51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them