Frame Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

biohazardbill · 01-06-2013, 08:14 PM

What is the difference between a 66 and a 67 frame as far as motor mounting goes? I thought all the cradles/frames were basically the same for these years.

Currently in my 66 I bought some CPP perches to mount a big block in. I had to do some frame trimming etc, however reading in some of the other forums to do a 454 swap into a 67 you can use perches specificaly for a big block from later model trucks. Why wouldnt we use these same perches in a 63-66?

01-06-2013, 08:14 PM	#1
biohazardbill Registered User Join Date: Jan 2010 Location: Forsyth, Ga Posts: 1,012	Frame Question What is the difference between a 66 and a 67 frame as far as motor mounting goes? I thought all the cradles/frames were basically the same for these years. Currently in my 66 I bought some CPP perches to mount a big block in. I had to do some frame trimming etc, however reading in some of the other forums to do a 454 swap into a 67 you can use perches specificaly for a big block from later model trucks. Why wouldnt we use these same perches in a 63-66?



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