ClassicOldsmobile.com

Notices

260 or 305?

Thread Tools
 
Search this Thread
 
Old Aug 19, 2010 | 06:13 PM
Share
  #1  
radioburningchrome's Avatar
radioburningchrome
Thread Starter
Registered User
 
Joined: Jan 2009
Posts: 679
From: Lehigh County Pennsylvania
260 or 305?
Went out to look at a 77 Olds "350" for sale, but something is not right. Now I am suspicious if it is a 260 or 305.

Intake is missing as well as valve covers. Any way to ID the block?
Reply
Old Aug 19, 2010 | 06:25 PM
Share
  #2  
lshlsh2's Avatar
lshlsh2
71 cutlass convertible
 
Joined: Sep 2008
Posts: 2,170
From: Trappe, MD
Should be a casting # behind the water pump. Get it and someone will tell you what it is.
Larry
Reply
Old Aug 19, 2010 | 08:38 PM
Share
  #3  
70 cutlass s's Avatar
70 cutlass s
Registered User
 
Joined: Sep 2009
Posts: 1,489
From: KY
Castings numbers is the fastest and easiest way. Well a 305 is a Chevy engine so that is pretty easy to tell the difference. Unless you meant 307 which the first year for them is 81.
Reply
Old Aug 20, 2010 | 11:26 AM
Share
  #4  
radioburningchrome's Avatar
radioburningchrome
Thread Starter
Registered User
 
Joined: Jan 2009
Posts: 679
From: Lehigh County Pennsylvania
Originally Posted by lshlsh2
Should be a casting # behind the water pump. Get it and someone will tell you what it is.
Larry
That sounds like the best plan. Next week I'll have another chance to look at it.
Reply
Old Aug 20, 2010 | 01:43 PM
Share
  #5  
jaunty75's Avatar
jaunty75
Registered User
 
Joined: Jun 2009
Posts: 15,192
From: southeastern Michigan
According to Setting the Pace, a 305 V-8 was available as an optional engine on the Omega.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
just bought 8 cutlass swith 305,000 miles still rollin
droptop442
The Newbie Forum
2
Aug 10, 2009 07:52 AM
New Owner of a 1978 Cutlass Supreme 305 V8
evilla
Cutlass
7
Oct 11, 2008 04:10 PM
Help me wake up my 305 in my 78 Salon
HAFROD
Small Blocks
4
Apr 24, 2008 03:12 AM
305 "H" motors.
J-(Chicago)
Small Blocks
1
Jul 31, 2007 10:38 AM
350 305 carb question
mjregim
Small Blocks
3
Jul 24, 2006 12:43 PM
Back to Subforum
Small Blocks
View Next Unread
New Engine - how much should I tear it apart?




Advanced Search

All times are GMT -7. The time now is 08:16 AM.