V8 Swap from V6 - GMC 3/4 Ton

[BigSix]

Seeing all the BBC swaps have me itching for a swap from my BB V6 to a BB V8. The 305E runs awesome but I wouldn't turn down huge power.

So the question is: are there any motor mounts that would bolt to my frame and carry a SBC or BBC?

I see lots of V8 swap mounts in the various supplier catalogs but I believe they are for 2wd trucks?

[Captainfab]

The easiest for you would be to get the engine mount crossmember from a '67-'72 K series truck. It doesn't use the best engine mounts, but it will fit your frame just right without modification. You will just need to position it so that the big block valve covers have clearance to the firewall and drill the holes to mount the crossmember. Of course you will also need to move the trans forward with the engine. If you are wanting to run a manual trans behind that big block, the easiest way to actuate the clutch is with a hydraulic clutch conversion. A manual clutch with a big block in these trucks is difficult.

[BigSix]

What confuses me is the crossmember situation. The stock V6 just has a mount on either side of the block. The V8's require a crossmember?

[Captainfab]

The '60-'66 K series trucks that came with V8's only had a bracket on each side of the frame. I doubt you are going to find any of those. But you might get lucky. I suggested the '67-'72 crossmember because they are much easier to find, easier to setup and are a better design in that they do tie both sides of the frame together.

Here are a couple pics of when you installed a '67-'72 engine mount crossmember into my son's '63 K10.