Reassembling the truck, first snag... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

the idiocracy · 06-24-2017, 07:48 PM

It's a 67, with the 250 motor. I want to put a th350 in it but standard SBC stuff isn't working. As I'm lining the trans up, the tq converter hits the crank before the bolts are even close. Flex plate is oriented properly, I confirmed that. Is there a special torque converter and/or flexplate out there to enable this conversion?

**68bowtie** · 06-24-2017, 07:54 PM

can't answer your question but i had a 71 with a 250/th350 from the factory, i loved that combo.

**FirstOwner69** · 06-24-2017, 08:06 PM

I'm not sure of how that combo matches up as compared to a SBC TH350 combo. It sounds to me like the convertor isn't properly seated on the TH350 shaft. I haven't done it for a while nor have I watched these 2 videos recently, but as I recall at least one describes the process.

How to install Torque Converter and Automatic...

How To Install a Torque Converter on an Automatic...

mud.man.rj · 06-24-2017, 08:13 PM

My thoughts exactly on the convertor, not all the way in pump.
Mudman.

the idiocracy · 06-24-2017, 08:51 PM

Thanks guys. I think the converter is fully seated. I am installing it to the motor from under the truck and I think the alignment might be off, causing the center of the converter to hit the crank. It's tough to see. I'll se if I can play with it more tomorrow.

**LockDoc** · 06-24-2017, 11:55 PM

Quote:

Originally Posted by firedemon

if it was standard could there be a pilot bushing in there keeping the torque converter from going into the crank like its supposed to

If the bushing is all the way in it won't interfere.

LockDoc

**Mike_The_Grad** · 06-25-2017, 05:50 AM

Are you able to start the bell housing bolts into the block? From what i read you can bolt up a number of trannys to those inline 6 engines. Im with the guys before me, sounds like your torque converter aint seated properly. Theres a diagram you can view on Google that tells you how to measure if your torque converter is seated properly.

rcazwillis · 06-25-2017, 10:40 AM

If the torque converter is seated all the way back, you should not be able to put your fingers between the torque converter and the body of the trans. If you can, then it is not seated properly. Without pics, I am betting this is the situation.

tutone · 06-25-2017, 10:53 AM

I just fought this battle last week with a 90 model 350/700r. Found out it was definitely alignment issues. I fought for an hour or so until I got smart and put a torpedo level on the oil pan of the eng and matched it on the
trans jack. Side to side and back to front. Slid on like greased butter once I got the dowels aligned.

06-24-2017, 07:48 PM	#1
the idiocracy Registered User Join Date: Jun 2016 Location: Davisburg, Michigan Posts: 54	Reassembling the truck, first snag... It's a 67, with the 250 motor. I want to put a th350 in it but standard SBC stuff isn't working. As I'm lining the trans up, the tq converter hits the crank before the bolts are even close. Flex plate is oriented properly, I confirmed that. Is there a special torque converter and/or flexplate out there to enable this conversion?

06-24-2017, 07:54 PM	#2
68bowtie Senior Member Join Date: Jan 2007 Location: Turlock, CA Posts: 8,413	Re: Reassembling the truck, first snag... can't answer your question but i had a 71 with a 250/th350 from the factory, i loved that combo. __________________ I live in California, but identify as a Texan "If a job's worth doing, it's worth doing well" Project "Little Sister" (70 c10 blue original paint refresh) Project "C10 Fever" (68 factory black 396 swb) Project "Blue Bomb" (70 c30 blue original paint refresh) Project "Vitamin C" (71 c10 orange original paint refresh)

06-24-2017, 08:13 PM	#4
mud.man.rj Registered User Join Date: Dec 2011 Location: Creighton Sask. Canada Posts: 4,121	Re: Reassembling the truck, first snag... My thoughts exactly on the convertor, not all the way in pump. Mudman. __________________ 1987 Green n Green machine. 5.0 4spd std. 7" lift w 35's.

06-24-2017, 08:51 PM	#5
the idiocracy Registered User Join Date: Jun 2016 Location: Davisburg, Michigan Posts: 54	Re: Reassembling the truck, first snag... Thanks guys. I think the converter is fully seated. I am installing it to the motor from under the truck and I think the alignment might be off, causing the center of the converter to hit the crank. It's tough to see. I'll se if I can play with it more tomorrow.

06-25-2017, 05:50 AM	#7
Mike_The_Grad Senior Member Join Date: Oct 2013 Location: Santa Paula, CA Posts: 585	Re: Reassembling the truck, first snag... Are you able to start the bell housing bolts into the block? From what i read you can bolt up a number of trannys to those inline 6 engines. Im with the guys before me, sounds like your torque converter aint seated properly. Theres a diagram you can view on Google that tells you how to measure if your torque converter is seated properly. __________________ 1972 C/10 LWB - Mine 1964 C/10 LWB - My Dad's Instagram: Mike_The_Grad

06-25-2017, 10:40 AM	#8
rcazwillis Registered User Join Date: Aug 2013 Location: Fort Worth, TX Posts: 309	Re: Reassembling the truck, first snag... If the torque converter is seated all the way back, you should not be able to put your fingers between the torque converter and the body of the trans. If you can, then it is not seated properly. Without pics, I am betting this is the situation.

06-25-2017, 10:53 AM	#9
tutone Registered User Join Date: Mar 2016 Location: hickory, ky Posts: 1,254	Re: Reassembling the truck, first snag... I just fought this battle last week with a 90 model 350/700r. Found out it was definitely alignment issues. I fought for an hour or so until I got smart and put a torpedo level on the oil pan of the eng and matched it on the trans jack. Side to side and back to front. Slid on like greased butter once I got the dowels aligned.



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