Flwheel
 

I am swapping from a 250 six cylinder that has a three speed manual transmission to a 350. Will my existing flywheel work on the 350? If not what flywheel should I search for ?

Re: Flwheel
 

i did this on a 78 c20 i had to alter the size of the crankshaft mounting bolt holes but it works well
(i cut some steel tube inserts to step the 6 cylinder 9/16 holes down to the 1/2in small block holes and used arp bolts)

Re: Flwheel
 

I did the same swap and everything bolted right up.

Re: Flwheel
 

I swaped a 250 six in a 65 panel the 396 was lunched fly wheel off the big block bolted right up. Thats one things that make chevy great.

Re: Flwheel
 

Here's a handy reference: http://www.hemmings.com/hmn/stories/...feature29.html

Re: Flwheel
 

I have a 454 flexplate on my 250 six (with the balance weight removed, of course...).

Re: Flwheel
 

'86 and newer one peice rear seal engines changed bolt circle diameter.