Compression Ratio - Mopar Forums

Compression Ratio

Reply

 
 
 
Old 01-04-2018, 09:55 AM
  #1  
New Member
Thread Starter
 
Join Date: Jan 2018
Location: Colorado
Posts: 3
Thanked 0 Times in 0 Posts
Compression Ratio

Hi all, Iím trying to find out if the 383 Engine in my 71 Cuda has the 9.5 or the 8.5 compression. The block casting is 2468130 dated 9-11-70 the heads are 2843906. Not a numbers matching car and couldnít get much info from previous owners.
Milehighmopar is offline  
Reply With Quote
Old 01-04-2018, 12:16 PM
  #2  
Mopar Lover
 
Join Date: Apr 2011
Posts: 4,267
Thanks: 0
Thanked 381 Times in 376 Posts
You would need to know what heads it has are they stock pistons has it been re bored What is the cranking compression reading. That a side for a 383 most likely a 9.5 to one
TVLynn is offline  
Reply With Quote
Old 01-04-2018, 05:49 PM
  #3  
Mopar Lover
 
RacerHog's Avatar
 
Join Date: Jun 2013
Location: Monrovia SO-CAL (USA)
Posts: 6,905
Thanked 497 Times in 493 Posts
I would say 8.5.1 C.R.
RacerHog is offline  
Reply With Quote
Reply
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
64Imperial
Do-It-yourself Section
5
03-04-2016 06:27 AM
64Imperial
Engines, Exhaust and Fuel systems
63
02-15-2016 07:44 PM
josehf34
Engines, Exhaust and Fuel systems
13
01-13-2014 09:35 AM
mopwit
General Discussion
4
09-08-2012 09:06 AM
RustBeltRodder
Engines, Exhaust and Fuel systems
3
08-19-2011 07:50 AM


Thread Tools
Search this Thread