Cross Member swap engine mount question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

evolve520 · 09-02-2014, 04:47 PM

Found a line a used x-member from a 78'. The 78 is set up for a big block. My current x-member is set up for a small block. Can I just take my old mounts and and use with the 78' x-member? My truck is already set up for disc brakes and power steering but the current x-member was pancaked and rides like a turd. Want to go back to the stock x-member and do drop springs/spindles. Thanks,
Jon

Arekusu · 09-02-2014, 06:22 PM

I want to say they are the same. Look at the disk brake conversion threads. They have a lot of info about front end components.

We also don't know what year your pancaked corss member is. Does pancaked mean slammed? Or cut up?

Alex

evolve520 · 09-02-2014, 07:51 PM

Quote:

Originally Posted by Arekusu

I want to say they are the same. Look at the disk brake conversion threads. They have a lot of info about front end components.

We also don't know what year your pancaked corss member is. Does pancaked mean slammed? Or cut up?

Alex

By pancaked I mean sectioned. Done horribly by PO. I can only assume the x-member in there now is the original to 66'.

**Captainfab** · 09-03-2014, 12:55 AM

On the '73-'87 trucks there is no difference between small block engine mounts and big block mounts.

**Chevy Fleetside** · 09-03-2014, 11:23 AM

Are your old mounts 65 or later... The 64-66 perches will line up with the holes on the later cross members. And as Capt said the others bolt up the same. Alot of GM stuff bolts up the same.

evolve520 · 09-03-2014, 11:34 AM

Quote:

Originally Posted by Captainfab

On the '73-'87 trucks there is no difference between small block engine mounts and big block mounts.

Thanks Captainfab. Think I'll pick it up and hang on to it until I can get it swapped.

09-02-2014, 04:47 PM	#1
evolve520 Registered User Join Date: Aug 2013 Location: Superior, CO Posts: 59	Cross Member swap engine mount question Found a line a used x-member from a 78'. The 78 is set up for a big block. My current x-member is set up for a small block. Can I just take my old mounts and and use with the 78' x-member? My truck is already set up for disc brakes and power steering but the current x-member was pancaked and rides like a turd. Want to go back to the stock x-member and do drop springs/spindles. Thanks, Jon

09-02-2014, 06:22 PM	#2
Arekusu Registered User Join Date: Mar 2008 Location: Arlington, Va. Posts: 335	Re: Cross Member swap engine mount question I want to say they are the same. Look at the disk brake conversion threads. They have a lot of info about front end components. We also don't know what year your pancaked corss member is. Does pancaked mean slammed? Or cut up? Alex

09-03-2014, 12:55 AM	#4
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Cross Member swap engine mount question On the '73-'87 trucks there is no difference between small block engine mounts and big block mounts. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

09-03-2014, 11:23 AM	#5
Chevy Fleetside Registered User Join Date: Sep 2006 Location: San Francisco Posts: 4,782	Re: Cross Member swap engine mount question Are your old mounts 65 or later... The 64-66 perches will line up with the holes on the later cross members. And as Capt said the others bolt up the same. Alot of GM stuff bolts up the same. __________________ "A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536



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