Head pick help with SRP #141636 piston Help!! - 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 03-30-2012, 05:29 PM
Registered User
 
Last photo:
Join Date: Jan 2008
Location: Washington State
Posts: 272
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Head pick help with SRP #141636 piston Help!!

Hello agian
my short block is all done and drop off these heads that I have to get re-done
3964291 old LS6 454 rect port heads. Come to find out they has been port work in the chambers to the extent of 111cc up to 114cc where the factory says these heads should be 108.9cc's which is what I designed my cam pick, piston pick etc... Each cyl on each head is a little different. Got taken to the cleaners on these boat anchors. So much for honest joe's. Anyway I need a set of heads that will work with the already put together short block piston #141636, 14cc dome for these closed chamber 291 heads. I was looking at the Edelbrock #60499 with 100cc chambers semi-open. Will these work with the SRP-141636 piston? OR??? any thoughts. Didn't really want aluminum, but
these 60499 are. Shop is throwing the 291's back together with old stuff to cc all 8 chambers and if they are all the same or close on each head say 114 on one hea and 11 on the other could I just have them milled to 108???
Anhy help or thoughts would be great man
thanks

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-05-2012, 02:33 PM
Registered User
 
Last photo:
Join Date: Jan 2011
Location: Hopewell, Va
Age: 62
Posts: 1,228
Wiki Edits: 0

Thanks: 0
Thanked 121 Times in 117 Posts
Head pick

The Edelbrock 60499 heads would give you 10.8 compression. That is a little too high even for aluminum heads. You would probably have to use racing fuel. Edelbrock designed their heads simalar to the GM aluminum heads. Either head you use be sure and check piston to valve clearance. Using the GM head with 108cc would be about 10.2 compression which could use 93 octane. By the way i looked up the GM heads on several sites, they were selling anywhere from $650 on Ebay to $2200 on some Camaro forums. The less work that was done to them seemed to bring more money.

Last edited by cdminter59; 04-05-2012 at 02:40 PM. Reason: adding more info
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-05-2012, 02:41 PM
Registered User
 
Last photo:
Join Date: Jan 2008
Location: Washington State
Posts: 272
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
cdminter59..Thanks another?

if the OE 291 heads are 108cc's and the pistons are exact
match SRP 141636 which is what I am making (LS6) I should
be ok with valve clearance. ???
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-05-2012, 05:10 PM
Registered User
 
Last photo:
Join Date: Jul 2004
Location: At Speed
Age: 51
Posts: 1,386
Wiki Edits: 0

Thanks: 2
Thanked 39 Times in 37 Posts
GM was just guessing when they published a head cc number. I have seen original BBC heads off by as much as 14cc. When the chambers are as cast, anything is possible. In the old days it was common to cc all 8 chambers and equalize as best you could. 2cc out of 110cc is not a show stopper for a street engine.

You will have to check piston to valve clearance yourself.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-05-2012, 05:25 PM
Registered User
 
Last photo:
Join Date: Jan 2008
Location: Washington State
Posts: 272
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Piston to Valve clearance fix??? how to?

If you find after testing that you have cleance issues, "how does
a guy fix it"?
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
What size CC head should I pick for my build? ACA Engine 22 06-23-2010 01:13 AM
Piston/ head cc chioce Biscuit6447 Engine 11 11-19-2009 03:03 AM
Help me pick a target head flow curtis73 Engine 18 11-20-2007 12:14 AM
SBC/882 head: which piston to get ~9.5:1 CR? Rhansen Engine 3 11-02-2005 06:55 PM
SBC Head and Piston Q?? 89SDime Engine 2 01-29-2005 12:10 AM


All times are GMT -6. The time now is 10:25 PM.


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.