The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-18-2015, 07:23 PM   #1
ratrodsrule1
Registered User
 
Join Date: Oct 2014
Location: Gulfport Ms.
Posts: 27
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 ?
__________________
We make too many wrong mistakes..................Yogi Berra
ratrodsrule1 is offline   Reply With Quote
Old 01-19-2015, 08:13 AM   #2
bns454
Registered User
 
Join Date: Jan 2013
Location: sydney australia
Posts: 56
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)
bns454 is offline   Reply With Quote
Old 01-19-2015, 08:51 AM   #3
73kay
Senior Member
 
Join Date: Jul 2014
Location: Indy, IN
Posts: 637
Re: Flwheel

I did the same swap and everything bolted right up.
__________________
Andrew

1953 3100 292 T5
1985 K5 Blazer 350 700R4 208
73kay is offline   Reply With Quote
Old 01-19-2015, 11:33 AM   #4
Bigstevex4
Registered User
 
Bigstevex4's Avatar
 
Join Date: Oct 2014
Location: Spearfish South Dakota
Posts: 407
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.
Bigstevex4 is offline   Reply With Quote
Old 01-19-2015, 02:57 PM   #5
Oregoon
Roadside Rebuilder
 
Oregoon's Avatar
 
Join Date: Oct 2008
Location: Southeast Portland, OR
Posts: 421
Re: Flwheel

Here's a handy reference: http://www.hemmings.com/hmn/stories/...feature29.html
Oregoon is offline   Reply With Quote
Old 01-19-2015, 04:32 PM   #6
ChevDog1
Registered User
 
ChevDog1's Avatar
 
Join Date: Aug 2013
Location: Banks, OR
Posts: 497
Re: Flwheel

I have a 454 flexplate on my 250 six (with the balance weight removed, of course...).
ChevDog1 is offline   Reply With Quote
Old 01-20-2015, 09:43 AM   #7
jetmech85
Registered User
 
Join Date: Sep 2014
Location: Texas
Posts: 215
Re: Flwheel

'86 and newer one peice rear seal engines changed bolt circle diameter.
jetmech85 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:55 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com