67 GMC 305 V6 swap to a SBC 305

[bigwil86]

The motor itself is in amazing condition, no pings, peeks, knocks, or leaks but I would still rather swap in something a little more conventional. Any advice about the x-member?
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[72freak]

Originally Posted by bigwil86

The motor itself is in amazing condition, no pings, peeks, knocks, or leaks but I would still rather swap in something a little more conventional. Any advice about the x-member?

What do you need to know about the x-member? Are you talking about the trans x-member? If you are staying with a 3 speed it should not have to be touched. If you are talking about under the engine that all stays the same also....you just swap the spindles and brke stuff.

[bigwil86]

Did GMC offer a v8 in there c15 truck in 67. Thought it wasn't until 68 they offer a v8.
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[72freak]

Originally Posted by bigwil86

Did GMC offer a v8 in there c15 truck in 67. Thought it wasn't until 68 they offer a v8.
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Yes.....327 was one of them

[bigwil86]

The best I can tell according to autozone, advance, oriellys. The parts search only shows 3 motor options all being V6s. 68 offers all kinds of v8 options. So the only thing I can do is take it out and figure my options from there. The V6 mounts are welded in.
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[72freak]

Originally Posted by bigwil86

The best I can tell according to autozone, advance, oriellys. The parts search only shows 3 motor options all being V6s. 68 offers all kinds of v8 options. So the only thing I can do is take it out and figure my options from there. The V6 mounts are welded in.
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Here is the SPID from one of my my 1967's that clearly states 327 and Im sure others will chime in shortly. I believe my 67 C-30 came with a 283. Im sure you know that those stores are not known for their vintage, classic and antique automobile knowledge...or much else!!!

As far as the motor mounts being welded in...that must have been done by a previous owner....get out the grinder. You can get a set of V-8 engine stands her on the board or on Craigs list for $40 all day long and they bolt right in. A fresh set of motor mounts from the era, line it up with the tranny, set it in ....and a day later you are back on the road!

http://67-72chevytrucks.com/vboard/s...d.php?t=438214

Post us some pictures of your project.

[Bob B.]

283's and 327's were an option in GMC pickups starting in May '67, late in the model year. The swap is pretty easy with the right parts. You need small block V-8 mounts and towers, along with a V-8 bellhousing if you have a manual transmission. If you have an automatic, your transmission will work with the right flywheel. GMC V-6's used Chevy automatics with adapter plates. Here is information on the GMC V-6's. Read up on them, you might decide to keep it!

http://www.6066gmcguy.org/

[bigwil86]

Thanks for the all the help, I'm going to pull that motor as soon as I have time. My truck is probably the second half of 67 cause its the round body style like 68-72 instead of the 60-66 style.
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