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Mild Modifications / Small block with th400
« on: December 10, 2017, 01:50:51 AM »
I’m thinking about installing a 350 smallblock, th400 and 12 bolt rear end in my 68 rs for drag strip duty. Later on the smallblock probably will get changed over to a bigblock. My question is should I use bigblock motor mounts on a smallblock with a th400 crossmember and th400 driveshaft? So when I change over to bigblock nothing has to change, except engine?