The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Changing the 67-72 engine crossmember to the 73-87?

1970gm4x4 · 09-25-2012, 12:42 AM

I am going to put a 454 in a 1970 chevy 4x4, i know they never made a 4x4 with a 454, i have been told by a guy that i will need to "upgrade" to the 73-87 style crossmember because they are supposedly stronger and use a better engine mount, also i have one and the frames are very close in width so it looks doable. Has anyone else heard of this or done this? thanks.

09-25-2012, 12:42 AM	#1
1970gm4x4 Registered User Join Date: Aug 2012 Location: El Dorado, California Posts: 26	Changing the 67-72 engine crossmember to the 73-87? I am going to put a 454 in a 1970 chevy 4x4, i know they never made a 4x4 with a 454, i have been told by a guy that i will need to "upgrade" to the 73-87 style crossmember because they are supposedly stronger and use a better engine mount, also i have one and the frames are very close in width so it looks doable. Has anyone else heard of this or done this? thanks.