Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - I have stock Gen IV 454 & 781 Heads, Compression ????
View Single Post
  #9 (permalink)  
Old 11-27-2011, 07:29 AM
wild_man84 wild_man84 is offline
Registered User
 

Last journal entry: 1990 ss....... Starting out as just another chevy/ going to end in a show near you
Last photo:
Join Date: Jan 2009
Location: Piedmont, S.C.
Posts: 136
Wiki Edits: 0

Thanks: 10
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by 454C10
stock flat tops on a 454 with 120-123cc heads (781's) makes around 7.7 to 7.9 :1 cr.

you will need a dome piston with 781's to get the compression up or do a 496 stroker kit.

Im going to order the things needed to measure the cc myself as techinspector1 recommended.. How did you do the math to find out the CR. What if or lets say the heads are 118 CC

what would be the CR then?
Reply With Quote