Combustion Chamber - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-07-2008, 12:25 PM
BG383's Avatar
BG
 
Join Date: Oct 2008
Location: MIAMI
Posts: 38
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Combustion Chamber

Question: I have a crate 383 stroker (360hp/410lbs) on Sealed Hyperutectic Pistons(yields 9.5:1 CP, flat top, 2valve relief); GM Cast Iron heads (Valves: 1.94int/1.5exh)(72cc/170 runners)...Compressed Head Gasket of .041..Standard deck height..Comp Cams Hydraulic Flat tappet .477/.480 lift; 110 lsa; 224/230 dur. @0.50" Advertised Dur. 268/280. I want to run Aluminum Heads (preferable trick flow's, AFR, Dart) with 190 or 195 intake runners & 2.02/1.6 valves. What size Combustion Chamber should I use to keep a CP ratio of nothing greater 10.5. (Street Driven/ Maybe some Track car).....Thanks

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-07-2008, 01:08 PM
Registered User
 
Join Date: Oct 2008
Location: Mora,MN
Posts: 422
Wiki Edits: 0

Thanks: 0
Thanked 8 Times in 8 Posts
Making a few assumptions here, but 8CC valve reliefs, 4.1 gasket bore, .030" down the bore, you could go as small as 60CC's.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-07-2008, 01:14 PM
lg1969's Avatar
Google "Tunnel Ram 406"
 
Last photo:
Join Date: Oct 2007
Location: Bohemia, L.I.N.Y.
Age: 64
Posts: 1,059
Wiki Edits: 0

Thanks: 1
Thanked 21 Times in 18 Posts
All you need is set of 70cc heads. This will bring you around 10.25:1 compression for -4 cc for a 2 valve relief

Last edited by lg1969; 11-07-2008 at 01:20 PM.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Thermal barrier coatings on combustion chamber and valves, any experience? Berliner Bel Air Engine 3 12-13-2007 12:36 PM
combustion chamber volume variances 383mudlust Engine 9 03-02-2007 11:05 PM
Combustion Chamber Volume Question mattson70 Engine 7 02-10-2007 03:25 PM
BBC combustion chamber sizes ratlover Engine 4 09-12-2004 02:02 PM
de-carbonize the combustion chamber KeithB123 Engine 23 10-01-2003 02:54 AM


All times are GMT -6. The time now is 02:07 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.