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70rs/ss · 11-19-2008, 03:43 PM

You need to drill one hole on the top frame rail I believe. The holes in the 73 and up crossmeber will match up if you use the 73 and up mount. There is no BBC or SBC with the 73 and up style, they are all one in the same.

11-19-2008, 03:43 PM	#3
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,270	Re: Motor Mount Question 73-87 X-Member on 69 frame You need to drill one hole on the top frame rail I believe. The holes in the 73 and up crossmeber will match up if you use the 73 and up mount. There is no BBC or SBC with the 73 and up style, they are all one in the same.