Notices
GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

Need help.

Old 07-13-2015, 09:56 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default Need help.

I've installed new heads and did the trunnion upgrade. My question is the rocker arm cradle does not sit flush on the new hands, can I just cut the part that is keeping the cradles from sitting flush on the heads. Please help thanks.
Attached Thumbnails Need help.-image-3590298812.jpg  
Old 07-13-2015, 10:02 PM
  #2  
11 Second Hall Moniter
iTrader: (22)
 
AKlowriderZ71's Avatar
 
Join Date: May 2008
Location: Wyoming
Posts: 11,651
Received 8 Likes on 8 Posts
Default

My first inclination is to say yes, trim the rocker stands to fit. But it might be worth a quick call to the manufacturer of the heads just to see what they have to say.

Whose heads are you using?
Old 07-13-2015, 10:04 PM
  #3  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default

That's what I was thinking. But trying to stay up late to top it off. They are RHS225 heads.
Old 07-13-2015, 10:06 PM
  #4  
Custm2500's Rude Friend
iTrader: (17)
 
1FastBrick's Avatar
 
Join Date: Apr 2007
Location: JunkYard
Posts: 14,320
Received 758 Likes on 627 Posts
Default

I would be inclined to agree with AKlowriderZ71.

Without knowing what head's you have and how they are set up it's hard to say for sure.
Old 07-13-2015, 10:09 PM
  #5  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default

The heads are straight out the box with GM MLS gaskets, tsp 7.4 pushrods, and factory rocker arms.
Old 07-13-2015, 10:15 PM
  #6  
11 Second Hall Moniter
iTrader: (22)
 
AKlowriderZ71's Avatar
 
Join Date: May 2008
Location: Wyoming
Posts: 11,651
Received 8 Likes on 8 Posts
Default

I'd mod the rocker stands to fit, then assemble everything in mock up. Verify pushrod length. Then check the wipe pattern on the stem. If it's all good, you're done. If not, correct the valvetrain geometry.

Should be okay unless those heads were designed to use screw in studs, or something unique.
Old 07-13-2015, 10:18 PM
  #7  
Custm2500's Rude Friend
iTrader: (17)
 
1FastBrick's Avatar
 
Join Date: Apr 2007
Location: JunkYard
Posts: 14,320
Received 758 Likes on 627 Posts
Default

After looking them up, I would say you need to trim the tabs that hang down as the rocker area's of the head are reinforced.
Old 07-13-2015, 10:19 PM
  #8  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default

No they were not set up for anything unique. My friend had them installed on his 6.0 with a cam from TSP. Heads have about 1200 miles on them. He had other plans so he sold me the heads.
Old 07-13-2015, 10:22 PM
  #9  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default

Here's a picture hopefully you can see the tabs.
Attached Thumbnails Need help.-image-696263541.jpg  
Old 07-13-2015, 10:30 PM
  #10  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default

Here goes nothing like a mod them.

Thread Tools
Search this Thread
Quick Reply: Need help.



All times are GMT -5. The time now is 12:04 PM.