ClassicOldsmobile.com

Notices

Clearance issues using 7/16 studs on iron #6 heads

   
Old May 3, 2018 | 08:17 AM
Share
  #1  
mr.rocket's Avatar
mr.rocket
Thread Starter
Registered User
 
Joined: May 2017
Posts: 9
Clearance issues using 7/16 studs on iron #6 heads
Is it ok to mill rocker for clearance
Reply
Old May 3, 2018 | 02:48 PM
Share
  #2  
70W-32's Avatar
70W-32
Registered User
 
Joined: Mar 2013
Posts: 1,914
From: St. Clair, MI
What lift cam. You can mill the rocker for additional clearance, but shouldnt have to if those are HS Olds rockers.
Reply
Old May 4, 2018 | 03:40 AM
Share
  #3  
mr.rocket's Avatar
mr.rocket
Thread Starter
Registered User
 
Joined: May 2017
Posts: 9
565 lift solid flat tappet cam
Reply
Old May 4, 2018 | 03:50 AM
Share
  #4  
mr.rocket's Avatar
mr.rocket
Thread Starter
Registered User
 
Joined: May 2017
Posts: 9
Originally Posted by 70W-32
What lift cam. You can mill the rocker for additional clearance, but shouldnt have to if those are HS Olds rockers.
solid flat tappet 565 lift I have 5003 HS rockers.
Reply
Old May 4, 2018 | 04:37 AM
Share
  #5  
cutlassefi's Avatar
cutlassefi
Registered User
 
Joined: Nov 2008
Posts: 8,477
From: Central Fl
Yes you can mill the rocker pads.
looks like you’re poly locks are really close to the rocker at max lift. I’d check underneath to make sure the pushrod isn’t hitting the rocker as well
Reply
Old May 4, 2018 | 06:06 AM
Share
  #6  
olds 307 and 403's Avatar
olds 307 and 403
Out of Line, Everytime😉
 
Joined: Dec 2006
Posts: 10,087
From: Melville, Saskatchewan
Holy big solid cam, I figured big by how much the spring was compressed. What are the other motor specs?
Reply
Old May 4, 2018 | 06:07 AM
Share
  #7  
mr.rocket's Avatar
mr.rocket
Thread Starter
Registered User
 
Joined: May 2017
Posts: 9
Originally Posted by cutlassefi
Yes you can mill the rocker pads.
looks like you’re poly locks are really close to the rocker at max lift. I’d check underneath to make sure the pushrod isn’t hitting the rocker as well
so can I mill where the rocker is hitting the poly lock
Reply
Old May 4, 2018 | 06:13 AM
Share
  #8  
mr.rocket's Avatar
mr.rocket
Thread Starter
Registered User
 
Joined: May 2017
Posts: 9
Originally Posted by olds 307 and 403
Holy big solid cam, I figured big by how much the spring was compressed. What are the other motor specs?
355 speedpro flat top pistons, Edelbrock intake, 455 valves, heads and intake ported to match.
Reply
Old May 4, 2018 | 06:23 AM
Share
  #9  
olds 307 and 403's Avatar
olds 307 and 403
Out of Line, Everytime😉
 
Joined: Dec 2006
Posts: 10,087
From: Melville, Saskatchewan
I assume some stall and gearing as well, what car? It should go like hell.
Reply
Old May 4, 2018 | 07:22 AM
Share
  #10  
mr.rocket's Avatar
mr.rocket
Thread Starter
Registered User
 
Joined: May 2017
Posts: 9
3.73 gears 3000 stall in a gbody 87 cutlass
Reply
Old May 4, 2018 | 10:00 AM
Share
  #11  
cutlassefi's Avatar
cutlassefi
Registered User
 
Joined: Nov 2008
Posts: 8,477
From: Central Fl
Originally Posted by mr.rocket
so can I mill where the rocker is hitting the poly lock
It shouldn’t hit there at all, especially with that amount of lift. Are you sure your geometry is correct?
Reply
Old May 4, 2018 | 10:21 AM
Share
  #12  
mr.rocket's Avatar
mr.rocket
Thread Starter
Registered User
 
Joined: May 2017
Posts: 9
Originally Posted by cutlassefi

It shouldn’t hit there at all, especially with that amount of lift. Are you sure your geometry is correct?
yes we checked it twice riding the valve perfect in the middle.
Reply
Old May 4, 2018 | 12:32 PM
Share
  #13  
70W-32's Avatar
70W-32
Registered User
 
Joined: Mar 2013
Posts: 1,914
From: St. Clair, MI
Originally Posted by mr.rocket

yes we checked it twice riding the valve perfect in the middle.
somethings not right, shouldnt need to clearance those rockers at that lift
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Not Using Toro Oil Pan--Can I grind stand off studs on main cap bolts?
David DeCan
Big Blocks
5
Dec 15, 2016 10:30 AM
NOS Iron Batten Heads Bare, Edelbrock Victor Olds Intake (Heads & Intake Sold)
2blu442
Parts For Sale
6
Apr 9, 2016 11:44 AM
Header/ trans Linkage clearance issues
NMcCarthy
Small Blocks
3
Nov 16, 2014 08:03 AM
Thermostat Housing - Using Studs
pmathews
Small Blocks
19
Nov 13, 2014 05:25 AM
First Build and Head Clearance Issues??
Chris Wicks
Small Blocks
17
Oct 21, 2012 09:35 AM
Back to Subforum
Small Blocks
View Next Unread
rebuild of my rocket 350


Thread Tools
Search this Thread
Search this Thread:

Advanced Search

Advanced Search

All times are GMT -7. The time now is 04:16 AM.