6 cyl. to v8 swap questions

OURWAGON · Guru

6 cyl. to v8 swap questions

DonSSDD · Canadian Poncho Superstar!

Keith, if you look at this link to the ChevyTalk 58-60 forum, at the top there are 2 saved posts on lengths of many gm transmissions plus a second one on driveshaft length, the info there should help answer your question. Im thinking the ironglide plus adapter is the same length as an aluminum powerglide. There are some rare aluminum powerglides with longer tailshafts, like those in a corvette but most are all the same length.

In 1 post there, someone weighed the ironglide at 230 lbs, the aluminum glide is at least 100 lbs less and easier to find parts for Im told.

-- Edited by DonSSDD on Friday 28th of August 2020 04:48:30 AM

gparis7 · Canadian Poncho Superstar!

I swapped a 283 PG from a 64 Pontiac into my 261/iron PG 62 Pontiac about 12 years ago. I had to change the engine mount perches but that was all. It was essentially a drop in. I can't remember for sure if I used the original 62 driveshaft or the 64 driveshaft but in any event it was achievable with parts that I had from both cars.

DANO65 · Poncho Master!

The Iron Glide is shorter than an aluminum glide/th350, so the stock driveshaft will have to be shortened, or find a front drive shaft from a 63/4.

DonSSDD · Canadian Poncho Superstar!

DANO65 wrote:
The Iron Glide is shorter than an aluminum glide/th350, so the stock driveshaft will have to be shortened, or find a front drive shaft from a 63/4.

Does your shorter comment include the length of the spacer used with the ironglide?

DANO65 · Poncho Master!

DonSSDD wrote:
DANO65 wrote:
The Iron Glide is shorter than an aluminum glide/th350, so the stock driveshaft will have to be shortened, or find a front drive shaft from a 63/4.
Does your shorter comment include the length of the spacer used with the ironglide?

Sure, going by experience of doing the conversion. Had to shorten front driveshaft a couple inches and change to a fine spline yoke. Probably would have been easier with a 63/4 driveshaft but we worked with what we had.

gparis7 · Canadian Poncho Superstar!

DANO65 wrote:
DonSSDD wrote:
DANO65 wrote:
The Iron Glide is shorter than an aluminum glide/th350, so the stock driveshaft will have to be shortened, or find a front drive shaft from a 63/4.
Does your shorter comment include the length of the spacer used with the ironglide?
Sure, going by experience of doing the conversion. Had to shorten front driveshaft a couple inches and change to a fine spline yoke. Probably would have been easier with a 63/4 driveshaft but we worked with what we had.

I guess that answers my question. I must have used the 64 driveshaft in my conversion. If you can't find one close to home, I'm sure I have spares.

DonSSDD · Canadian Poncho Superstar!

What year did they change to fine splines? I would have guessed it was later than 64, like with the 4 speeds?

long stroke · Canadian Poncho Superstar!

My first question would be, why why why do it in the first place. Ok just kidding, just kidding. Good luck with the transplant and i hope it does very well by you. Cheers.

59paris · Addicted!

DANO65 wrote:
DonSSDD wrote:
DANO65 wrote:
The Iron Glide is shorter than an aluminum glide/th350, so the stock driveshaft will have to be shortened, or find a front drive shaft from a 63/4.
Does your shorter comment include the length of the spacer used with the ironglide?
Sure, going by experience of doing the conversion. Had to shorten front driveshaft a couple inches and change to a fine spline yoke. Probably would have been easier with a 63/4 driveshaft but we worked with what we had.

Exactly!

That's what I had to do also (my 59 Parisienne came with a 6 and iron PG originally, swapped in a 1964 283 with alu PG.