47-55.1 GMC w/orginal engine and Mustang II?

[mphudak]

I'm building up a chassis for my 55.1 Suburban and have installed a mustang II. All along my plan was to put in a 283 but am toying w/the idea of keeping it all GMC and going w/a 270 instead. I've been seaching but can't come up with anything on a 47-55.1 GMC that has a mustang II and is still running an original engine (228-302 GMC). My concern is the oil pan clearance to the crossmember since a GMC isn't notched like a chevy inline.