First off great website. I have been reading it for years and getting all the info I have needed until now. I recently swapped an inline six cylinder motor for a 350. Now the problem seems to be that the TH350 that was behind the 250 isn't working behind the 350 motor. I have checked the fluid and checked the vacuum line everything is hooked up correctly. The tranny was working fine before the swap. Any help would be great. Thanks

Welcome! Port Hueneme, Our customer is NSWC PHD. Nice area. Enlighten us, what is the trans not doing? Is it not shifting, slipping, no reverse, no forward, etc.?

One thing I have learned, an auto trans from a 6-cyl all ita life will definately slip when bolted to a V8, something having more power than a 6-cylinder.

Well thanks. the area is great, just wish I didn't have to transfer. The tranny doesn't want to do anything. I can't get it to shift into any gear. At first it went into drive but now its dead. any help would be great. Thanks again.
Joe

You might have gotten the flex plate on backwards. This action would pull the torque convertor out of engagement of the trans oil pump, thus, not pumping any oil.

When connecting the t/convertor to the flex plate, the fingers of the t/conv mate with the "raised" section of the flex plate. The flex plate is stamped. The place where the t/conv would bolt up, is flush with the side of the ring gear. When the t/conv is in the case all the way to the rear, there should be no more than 1/4 inch of clearance between the finger and the flex plate. If this distance is not filled with equal spacers and longer bolts, the t/conv will disengage from the oil pump.

This is why I suggest the flex plate may be on backwards on the crankshaft. This would greatly increase the distance.

A quick check to see if oil is pumping is to unscrew the top oil line in the radiator and attach a nipple and hose into a bucket from the radiator. This is the return line to the trans case. Start the car up, and if oil doesn't pump out, then the oil pump is not working.

well i pulled the tranny out and found out that i had broke the pump. the torque converter wasn't seated all the way down when i tightened down the bellhousing bolts. this is definately a lesson learned. thanks for the help everett.