Auto flywheel question
 

Is a 250 flywheel for an automatic the same as a V8?

Re: Auto flywheel question
 

Ok, so I was installing a TH350 behind my 230 Inline 6.

I had to remove the old flywheel and use one from a smallblock Chevy (that had the TH350 behind it).

Now, I dunno if the flywheel from a TH350 fits a TH400. All I can tell you is, if you find a truck (in the wrecking yard for example) that has a 400, that flywheel is bond to work no matter what engine application. I think the bolt pattern is the same for most GM engines. The flywheel off that V8 in the yard fits my Early 60's 230.

Re: Auto flywheel question
 

the flexplates depend on the year ie) 73-84 will fit many 305,350 etc but it depends on the vin number for others a 79-80 vin number with M uses a different flexplate

Re: Auto flywheel question
 

Mine's a 1970. I'm going to a TH400 from a Saginaw 3 spd. The trans and flexplate came from a 67 but I don't know what engine it had. I know there are 2 different flexplate tooth counts, 153 & 168. Anybody ever made this particular type of swap before? Any help is appreciated.

Thanks,
Stovebolt