series 2 L67 crank in series one L67 block? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 04-11-2008, 06:33 PM   #11
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

I haven't been able to look at the journal diameters yet...

But if he was able to use the series II knife edge crank, and get the assembly balanced he would then be using more of the power to propel the car as opposed to moving the engine internals.. Although the series I pistons and Rods are larger and heavier..

Would be interesting to see of that was possible

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 04-12-2008, 03:16 PM   #12
Junior Member
 
Join Date: May 2006
Location: BonnevilleHell
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
clm2112 is on a distinguished road
Default

Hmm...

Just one question from the peanut gallery here.... What about the rear seal? Series II uses a one piece crank seal on the flexplate end. Series I has a two-piece rear seal. The flange end of the crank is completely different in a way that can't be altered by re-machining...maybe...turn it down in a lathe to fit the 2-piece seal of an SI block?

I can envision the finished product bleeding oil like the Exxon Valdez...
clm2112 is offline   Reply With Quote
Old 04-12-2008, 03:20 PM   #13
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Quote:
Originally Posted by clm2112
Hmm...

Just one question from the peanut gallery here.... What about the rear seal? Series II uses a one piece crank seal on the flexplate end. Series I has a two-piece rear seal.
Series I Vin C through 1990 Production used the 2 Piece... 1991 Vin C, 1990-95 Vin L( L27 ), 1991.5 - 1995 L67 were all one piece rear mains... Is it the rear main you were talking about Curt?

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 04-12-2008, 03:36 PM   #14
Junior Member
 
Join Date: May 2006
Location: BonnevilleHell
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
clm2112 is on a distinguished road
Default

Quote:
Originally Posted by jr's3800
Is it the rear main you were talking about Curt?
Yep, I was thinking of my motor..a 1990 with a two piece vs. the series II that I rebuilt with a one-piece rear seal. My fault...not thinking of a series 1 L67 block
clm2112 is offline   Reply With Quote
Old 04-12-2008, 03:40 PM   #15
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Yes it was odd Curt, for the 1990 Tuned Port 3800 they went to the One piece but continued to use the 2 Piece Vin C block.. In 1991 the vin C block was changed over to the One piece( Same block minus a couple of threaded bolt bosses

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Series II Intake Swap to a Series III Long block trickytransam Performance, Brainstorming & Tuning 9 03-23-2008 10:23 PM
92 sc block shot ...can I use nsc block???? 92 SSE! mo Charger 1992-1999 17 04-20-2007 07:17 PM
Series 2 L67 in a Series 1 L67 car... JimmyFloyd Performance, Brainstorming & Tuning 13 09-04-2006 02:00 PM
Are the L67 series I and series II block different? chuck03 1992-1999 10 01-09-2005 09:38 PM
Series 2 L67 Engine cover on a Series 1 L67? DJ SHO Performance, Brainstorming & Tuning 7 07-19-2004 04:39 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:42 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.