67 swb step side bulid

[dakotaf]

Whats goi on guys im new to this forum, my name is dakota. me and my brother in law are building this 67 small window swb step side. it is a frame off resto. we have the cab stripped down and all the body off the frame. i will try to post pics of it before during and after the process. We bought a 73 sierra grande p/u with a 454 and a th400. we took that and the motor towers and trying to get it to fit. the truck was a factory stright 6 truck, when we got it there was a locked up 302 and a 3 speed in it. will the motor towers work on the 67? can we use the clam shell mounts on the 67 with the towers also? we have a plastic BB for fitment suff. The truc is also a small hump. Will there be any issues with tranny? Any one got an advice? thanks!!

[dakotaf]

Also the 454 looks to have double valve springs. do hey come like this? It has 049 oval port heads. 167 CC combustion chambers.