Go Back   GoFastNews.com - All Racing News All the Time! > Performance Racing Forum > Engine Technology

Engine Technology From the novices to the pros, talk about engine technology. Moderated by David Vizard, professional engine developer and well-known technical writer.

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 07-03-2008, 04:35 PM
Garage Sweeper
 
Join Date: May 2008
Posts: 18
AFR Valve train problems

Just completed a 408SBC build and got ready to cinch up the valve train on a set of AFR220 heads(Older model). The Intakes rockers and stud girdle had serious aligment issues. I acquired these heads used and had them freshened and ported, not knowing that apparently they need an off-set intake rockers. Sooo, what are my choices? Are there any recommendations from you guys?

I've called AFR and they recommend T&D shafts. I contacted several of the shaft guys; Jesel, Crane, etc. to get some info. I also contacted Yella Terra. They were very helpful and knowledgable about this set-up. I'm inclined to go with their deal but don't know much about them. Does anyone out there run their stuff?
Reply With Quote
  #2 (permalink)  
Old 07-03-2008, 06:35 PM
rookie's Avatar
Pit Crew
 
Join Date: Apr 2007
Location: In The Woods
Posts: 570
I don't know about the stud girdles if you can get them from AFR and just need offset intake rockers, Jeg's
JEGS Aluminum Roller Rocker Arms - JEGS

Also Speedway has these,
I don't know if these come offset but they are a new product on the market and scary cheap, worth a look though.
S/B Chevy Platinum Series Shaft Rocker Arms
__________________
Has anything you've done made your life better?
Reply With Quote
  #3 (permalink)  
Old 07-03-2008, 06:44 PM
Garage Sweeper
 
Join Date: May 2008
Location: Finland
Posts: 66
Quote:
Originally Posted by 55Post View Post
Just completed a 408SBC build and got ready to cinch up the valve train on a set of AFR220 heads(Older model). The Intakes rockers and stud girdle had serious aligment issues. I acquired these heads used and had them freshened and ported, not knowing that apparently they need an off-set intake rockers. Sooo, what are my choices? Are there any recommendations from you guys?

I've called AFR and they recommend T&D shafts. I contacted several of the shaft guys; Jesel, Crane, etc. to get some info. I also contacted Yella Terra. They were very helpful and knowledgable about this set-up. I'm inclined to go with their deal but don't know much about them. Does anyone out there run their stuff?
My friend recently bougth AFR 227 heads and he had exactly same problem. He solved it buying T&Ds ($$$). If you end up to stud mounted rockers, he has leftover stud girdles if you need them (I don't know if valve spacing is the same in AFR 220). EDIT: These are stud girdles made by AFR for AFR 227 heads.

Last edited by Lasse; 07-03-2008 at 06:52 PM.
Reply With Quote
  #4 (permalink)  
Old 08-23-2008, 11:35 PM
Garage Sweeper
 
Join Date: May 2008
Posts: 18
Rec'vd the Yella Terra Platinum rockers. Sent me the wrong PN the first time. But made good and replaced them with the right PN. Got the 1.65/1.55 ratio set. Went on my 220's with just a little clearancing along the intake port wall. No real problems with fit. We fired the motor this week, and the valve train was quiet. Everything look's good. We'll see how they operate in the long run.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -4. The time now is 04:23 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.2.0
Copyright ©2007 - 2008 GoFastNews.com LLC