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I have done this swap. My 67 Special Deluxe wagon had the original st300 behind a 340. I had my local tranny shop build a 200r4 like it was going in a GN. It bolted right up and fit perfectly. Drive...

Not sure on the earlier trans. I used a 200r4 on my 67 Special wagon. I replaced the st300 and wouldn't ever go back.Had a trans built locally as it was going into an 87 GN. Bowtie overdrives...

Hollander shows that it's 65 Electra and Wildcat. You may find other GM axles that work with minor mods like drive shaft and plus minus on over all width. Wheel bolt pattern may be an issue as well....

I've found 'em to work pretty well. Big down side is they have rotted the headers on my chevy. Weren't the highest quality to start with. I've used the stainless header paint from Eastwood with great...

Use a 200r4. Has dual pattern and worked awesome in my 67 Special wagon.

Not sure if you have the same bell housing pattern as 340, but I swapped a 200r4 in my 67 Special wagon. Absolutely love it.

The 200r4 built correctly will handle incredible abuse. It is dimensionally the same as st300, powerglide and th350. Driveshaft length and yoke are the same as well. I used bowtie overdrive for the...

This was a great read as well.
http://www.hotrod.com/techarticles/engine/hrdp_1103_how_to_hot_rod_any_engine/

Get someone familiar with vintage heads to clean up heads. Crower offers a few cams. I'd try Comp cams for a set of Beehive springs. No intake is available aftermarket. I added an Accell electronic...

I have my original off of 67 Special Deluxe wagon that was pulled for my 200r4 swap. Let me know.

200r4 is the way to go. I swapped mine 4 yrs ago and wouldn't ever go back. Really easy swap and 99% bolt in.

And the 200r4's are dual bolt pattern bell housings. I swapped one in my 67 Special Wagon and what a difference over the ST300. Bolt in swap as well. Had mine built locally and shop told me 400 hp...

not sure how late it went, but a ton of early gm tied engine numbers to vin.

I swapped in a 200r4 where by st300 lived previously. It had all the holes already in the frame and reused the cross member. Driveshaft and yoke also were reused. Bowtie overdrives and b&m make lock...

I pulled the st300 and tossed in a 200r4 really easily and couldn't be happier.

I have a factory afb off of an auto if ya need it. It worked fine, but pulled it when I installed a 200r4 and a edelbrock carb.

Oh yeah, mileage went from 20 to 26/27 on the highway, with way better performance in town.

I swapped the super turbine 300 out of my 67 special deluxe for a 200r4. As far as I know they all have dual bolt pattern housings i.e. bop and chevy. I had to move the trans mount back, but there...

Tossed a 200r4 in my 67 wagon and would do it 100 over. Best thing since sliced bread. Pays for itself in no time flat .

Just wondering. I really want to get fuel injection going on my 67 340. Living @ 10,000 with a carb isn't cutting it. Thanks

I just swapped the 200r4 into my 67 sd wagon. Easy swap as driveshaft was same as well as yoke. Trans mount needs to be pulled back 6 or 7 inches. Should be pre-existing holes in frame and use one...

I swapped my ST300 for a 200r4 in my 67 Special Deluxe wagon recently. I was wondering if anyone knows if a late model 4 spd auto coulmn will bolt in? I really don't want to go aftermarket on the...

Does anyone have any listing for 1967 rearend gear ratios? Thanks

If anything is similar, I have all the original pieces from my st300 to 200r4 swap. Let me know.

Hey Glen To my knowledge there were no aftermarket intakes for the 340. I used a edelbrock on my 67 340 with factory 4bbl intake. I had to change the carb due to no kick down linkage on the...