Notices

Deck height

Old 03-09-2011, 06:41 PM
  #21  
Registered
 
blue thunder's Avatar
 
Join Date: Nov 2001
Location: Pennsylvania
Posts: 3,385
Likes: 0
Received 0 Likes on 0 Posts
Default

Cometic sells a .027" with a 4.53 bore.gasket. I just bought a couple off ebay, best price I could find. I ran 12cc domes for years with 116cc aluminum heads on 89 oct. I think you will be fine with the 13.8cc pistons, iron 115cc heads and 91 octane. FWIW, the engines I built this winter I couldn't get the cc piston I wanted in one engine so I bought solid dome pistons (18cc) and had them fly cut to the cc I wanted. There's more than one way to skin a cat.
blue thunder is offline  
Old 03-09-2011, 06:56 PM
  #22  
Registered
iTrader: (2)
 
Join Date: Aug 2005
Location: Between A Womans Leggs in IL
Posts: 6,306
Likes: 0
Received 1 Like on 1 Post
Default Fixx

Originally Posted by pantera232
I got cc of heads today there 781 heads with 115cc.
the 454 is a 4.29 bore and 4" stroke
The lowest forged domed piston i found was from speedpro it was a 13.8cc dome, they had alot of 18cc domes. 13.8 dome volume would put me around 9.1 compression ratio, I only have around 91 octane readily available. Im going to try to run a compressed gasket around .038 will this set up be save regarding piston slapping valves/head??

Does anyone recommend a thinner gasket?

Thanks All
Deck the block....put the pistons @ .010 in the hole.
FIXX is offline  
Old 03-10-2011, 06:52 PM
  #23  
Registered
Thread Starter
 
Join Date: Jul 2010
Location: Deerfield BCH, FL
Posts: 449
Likes: 0
Received 0 Likes on 0 Posts
Default

I just purshased forged pistons 13.8 cc dome volume and .1 dome height , with 1.645 compression distance should leave me .02 to deck height plus .027 cometic gasket = .047 should be a 9.33:1
Do i have to worry at all about clearance issues.?

Last edited by pantera232; 03-11-2011 at 06:00 AM. Reason: added info
pantera232 is offline  
Old 03-11-2011, 08:21 AM
  #24  
Registered
 
blue thunder's Avatar
 
Join Date: Nov 2001
Location: Pennsylvania
Posts: 3,385
Likes: 0
Received 0 Likes on 0 Posts
Default

You always need to degree in the cam and check piston to valve clearance. If all is correct you will not have clearance issues. The .047 quench height is good too. You will need to run good fuel, and keep the timing conservative with iron heads and 9.33 static compression, but it should run well.

Last edited by blue thunder; 03-11-2011 at 12:28 PM.
blue thunder is offline  

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 On
Pingbacks are On
Refbacks are On


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.