Information on heads - 460 Ford Forum
Engine Tech Archive A collection of all posts from the old Network54 forum

User Tag List

 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 10 (permalink) Old 07-23-2016, 01:11 PM Thread Starter
Junior Member
 
Join Date: Jul 2016
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
Information on heads

Hey guys, building a mild 460 for towing, I have a older set of take off heads I'd like to get some info on. They have been ported, I can measure the valves, and have factory bolt on pedestals. The only info I have on the port job is a hand written flow sheet I'm having a hard time making sense of.
Attached Images
File Type: jpg image_1469297487571.jpg (10.0 KB, 55 views)
Crucialprospect is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 07-23-2016, 06:18 PM Thread Starter
Junior Member
 
Join Date: Jul 2016
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
I apologize for not saying this before, they are d3ve heads. I don't know how much these things can flow, but is it safe to assume they are better than stock?
Crucialprospect is offline  
post #3 of 10 (permalink) Old 08-06-2016, 01:30 AM Thread Starter
Junior Member
 
Join Date: Jul 2016
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
Anyone? The only thing I can guess is the numbers on the left is lift? I'm trying to figure out if these things are any good to use, I was told there was a decent amount of beadwork done, but I only have receipts and that hand written chart. Thanks.
Crucialprospect is offline  
 
post #4 of 10 (permalink) Old 08-06-2016, 04:25 AM Thread Starter
Junior Member
 
Join Date: Jul 2016
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
If there is any math involved, I'm sure there is, if I take that top number on top " int 295" and multiply it by the decimal numbers, that replicates what they got for 254cfm at 500 lift.

295x.85=253.7~254

If this is the case what is 295 representing and what are the decimal numbers representing?

And finally, is 254 cfm at .500 any decent? And on the exhaust side 174cfm at .500?
Crucialprospect is offline  
post #5 of 10 (permalink) Old 08-06-2016, 08:50 AM
Senior Member
 
CarsByCarl's Avatar
 
Join Date: Jan 2006
Location: Colorado Springs, CO.
Posts: 5,481
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 186 Post(s)
 
Garage
If the numbers are accurate, they're pretty typical of D3 heads with mild porting. For what you're doing, they're fine.


.

Fastest street legal BBF on 460Ford.com
Fastest AFR headed BBF on 460Ford.com
Fastest street legal 2nd gen Montego GT on EARTH!
CarsByCarl is offline  
post #6 of 10 (permalink) Old 08-07-2016, 09:24 AM Thread Starter
Junior Member
 
Join Date: Jul 2016
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
Can you explain what the numbers are?
Crucialprospect is offline  
post #7 of 10 (permalink) Old 08-08-2016, 06:50 PM Thread Starter
Junior Member
 
Join Date: Jul 2016
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
Looking In the engine build specs page, my 268 cfm intake at 600 lift is horrible? It's showing 315 ish and 180 ish exhaust, I though factory d3's intake was closer to 300cfm? So that really can't be the right way of calculating cfm... Exhaust is nicer though.
Crucialprospect is offline  
post #8 of 10 (permalink) Old 08-08-2016, 07:11 PM Thread Starter
Junior Member
 
Join Date: Jul 2016
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
it would make more sense to see the first number as a stock volume at x lift, and the number next to it was the ported volume at x lift, but that doesn't tell me much else,
Crucialprospect is offline  
post #9 of 10 (permalink) Old 08-09-2016, 08:35 AM
Senior Member
 
CarsByCarl's Avatar
 
Join Date: Jan 2006
Location: Colorado Springs, CO.
Posts: 5,481
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 186 Post(s)
 
Garage
Quote:
Originally Posted by Crucialprospect View Post
Can you explain what the numbers are?
Numbers on the left are lift. The rest, looks like some sort of non-standard or home-brewed flow measuring devise that was then converted to 28" depression or something on the far right. Maybe before and after porting numbers on the middle and right hand columns....kind of looks like it with 139cfm before and 174cfm after noted on the exhaust.

At the end of the day, ~270/170 is pretty typical of a mild port job on D3's, and far better than stock. As I said before, for your application, they're fine. Even stock un-ported heads are fine. Run em.


.

Fastest street legal BBF on 460Ford.com
Fastest AFR headed BBF on 460Ford.com
Fastest street legal 2nd gen Montego GT on EARTH!

Last edited by CarsByCarl; 08-09-2016 at 08:42 AM.
CarsByCarl is offline  
post #10 of 10 (permalink) Old 08-09-2016, 01:16 PM Thread Starter
Junior Member
 
Join Date: Jul 2016
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
Thank you, worst case, once I pull them and get them cleaned up, I can go back in there and do more work.
Crucialprospect is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 460 Ford Forum forums, you must first register.
Please enter your desired user 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:
OR

Log-in










Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome