700R4 Bolted to a 1969 350 motor? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mike McMahan · 11-07-2006, 12:50 AM

This is my first post.....I have just purchased my 1969 Chevy stepside shortbed. 6 Cyl with a 3 on the tree. I want to lose the 6 and go with a 1969 vintage 350 engine. I would also like to add a 700R4 transmission. My neighbor has a 1993 700R4 out of his 4.3 blazer( for $50). What kind of road blocks and surprizes should I expect. What is the lock up converter I have been reading about? Lots of questions.......I need hellllllllllp. Mike

Aarons72s · 11-07-2006, 02:49 AM

well first off welcome to the board. Well you can put it in but there are a few things.
1. you will need a auto trans crossmember, off of any 1/2 or 3/4 ton 2wd 67-72.

2. your drive shaft will need to be shortened.

3. Lock up converter is more like a clutch. when it is engaged the engine and trans are esentially conected like a clutch. An yes you need it or kiss the 700r4 bye bye.

4. here are some links to help you:
http://67-72chevytrucks.com/vboard/s...ighlight=700r4

http://67-72chevytrucks.com/vboard/s...ighlight=700r4

http://67-72chevytrucks.com/vboard/s...ighlight=700r4

**VetteVet** · 11-07-2006, 03:36 PM

here are some answers.

http://www.technicalevolution.com/articles.htm

Myself · 11-07-2006, 04:08 PM

Try to find one a little older. I think the '93 shifts from computer control only, no detent cable. Also I don't think it has a place for speedo cable. Both of these things can be adapted but it's gonna cost more money.

Mike McMahan · 11-07-2006, 11:41 PM

Thanks for all the help. The websites listed really help.....Thanks again guys!

aboyer · 11-08-2006, 10:32 PM

Somebody correct me if I am wrong, but I think that with a 700R4 transmission on a V6 motor, it has a slight difference in the bolt pattern.

I am looking into doing this same thing and was cautioned on this. I would measure the bolt pattern prior to purchase.

Adam

ND_guy · 11-08-2006, 11:17 PM

The 4.3 has the same bolt patern as the sbc it was based off of

krue · 11-09-2006, 12:12 AM

Welcome to the board.

11-07-2006, 12:50 AM	#1
Mike McMahan Registered User Join Date: Oct 2006 Location: Las Vegas Posts: 4	700R4 Bolted to a 1969 350 motor? This is my first post.....I have just purchased my 1969 Chevy stepside shortbed. 6 Cyl with a 3 on the tree. I want to lose the 6 and go with a 1969 vintage 350 engine. I would also like to add a 700R4 transmission. My neighbor has a 1993 700R4 out of his 4.3 blazer( for $50). What kind of road blocks and surprizes should I expect. What is the lock up converter I have been reading about? Lots of questions.......I need hellllllllllp. Mike

11-07-2006, 02:49 AM	#2
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,670	Re: 700R4 Bolted to a 1969 350 motor? well first off welcome to the board. Well you can put it in but there are a few things. 1. you will need a auto trans crossmember, off of any 1/2 or 3/4 ton 2wd 67-72. 2. your drive shaft will need to be shortened. 3. Lock up converter is more like a clutch. when it is engaged the engine and trans are esentially conected like a clutch. An yes you need it or kiss the 700r4 bye bye. 4. here are some links to help you: http://67-72chevytrucks.com/vboard/s...ighlight=700r4 http://67-72chevytrucks.com/vboard/s...ighlight=700r4 http://67-72chevytrucks.com/vboard/s...ighlight=700r4

11-07-2006, 03:36 PM	#3
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,709	Re: 700R4 Bolted to a 1969 350 motor? here are some answers. http://www.technicalevolution.com/articles.htm __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.

11-07-2006, 04:08 PM	#4
Myself Registered User Join Date: Oct 2005 Location: Northern Arkansas Posts: 1,131	Re: 700R4 Bolted to a 1969 350 motor? Try to find one a little older. I think the '93 shifts from computer control only, no detent cable. Also I don't think it has a place for speedo cable. Both of these things can be adapted but it's gonna cost more money.

11-07-2006, 11:41 PM	#5
Mike McMahan Registered User Join Date: Oct 2006 Location: Las Vegas Posts: 4	Re: 700R4 Bolted to a 1969 350 motor? Thanks for all the help. The websites listed really help.....Thanks again guys!

11-08-2006, 10:32 PM	#6
aboyer Adam B Join Date: Jul 2005 Location: Westfield Posts: 151	Re: 700R4 Bolted to a 1969 350 motor? Somebody correct me if I am wrong, but I think that with a 700R4 transmission on a V6 motor, it has a slight difference in the bolt pattern. I am looking into doing this same thing and was cautioned on this. I would measure the bolt pattern prior to purchase. Adam

11-08-2006, 11:17 PM	#7
ND_guy Tool Addiction=Money Shortage Join Date: Mar 2006 Location: Grand Forks, ND Posts: 233	Re: 700R4 Bolted to a 1969 350 motor? The 4.3 has the same bolt patern as the sbc it was based off of

11-09-2006, 12:12 AM	#8
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: 700R4 Bolted to a 1969 350 motor? Welcome to the board. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"



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