Roller Rockers For LT1 Center Bolt Heads - CorvetteForum - Chevrolet Corvette Forum Discussion

Go Back   >
Log In 
Register FAQ Search Today's Posts Mark Forums Read Vendor Directory

C4 Tech/Performance
L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Roller Rockers For LT1 Center Bolt Heads

Reply
 
 
 
Thread Tools Search this Thread
Old 09-03-2010, 02:47 PM   #1
Buddyvette
CF Member
Thread Starter
 
Buddyvette's Avatar
 
Member Since: Apr 2004
Location: Honolulu HI
Posts: 93
Thanks: 0
Thanked 0 Times in 0 Posts
Default Roller Rockers For LT1 Center Bolt Heads

What aftermarket full roller rockers (7/16 stud, non self aligning) work with the LT1 center bolt heads? Comp Cams Pro Magnum rockers are one that I know of, but what others are out there?
Buddyvette is offline   Reply With Quote
Old 09-03-2010, 11:07 PM   #2
lushdrunk
CF Senior Member
 
lushdrunk's Avatar
 
Member Since: Aug 2007
Location: Charlotte NC
Posts: 916
Thanks: 0
Thanked 1 Time in 1 Post
Default

I'm not a professional, and some of this could be wrong. But I did learn a little when I installed roller rockers on my Lt1.

The OEM stud size is 3/8" and you need self aligning rockers or you will need to use guide plates. The rockers must be a "narrow body" design to work with center bolt valve covers and OEM valve covers need the baffles removed for the extra clearance needed.


Proform makes an aluminum roller rocker that seems to be quite popular with the centerbolt guys and runs under $180 per set from both summit and jegs, Or at least they where a couple of years ago when I was looking for mine.

I purchased my 1.6 stainless steel roller rockers off ebay for $119 shipped to my door. They are cheapo knock off's, But they have worked well for me over the years and the quality was better then I expected. I originally put them on a Barnes & Reese short block with ported Lt1 heads, But after approx 7K miles one of the wrist pins broke and destroyed the block and heads. Now I have them installed on my otherwise stock 94 Lt1, And have put close to 10K miles on them.


But any SBC roller rocker with a 3/8" stud and narrow body design will work with centerbolt valve covers. Oh and don't forget to change your springs as well, The LT4 springs work well.
lushdrunk is offline   Reply With Quote
Old 09-03-2010, 11:29 PM   #3
STL94LT1
CF Senior Member
 
STL94LT1's Avatar
 
Member Since: Jan 2002
Location: O'Fallon Missouri
Posts: 12,020
Thanked 6 Times in 4 Posts
Default

Scorpion, Crane, ect. I would imagine all of the 7/16" SBC RR's would work.
STL94LT1 is offline   Reply With Quote
Old 09-04-2010, 05:03 PM   #4
Buddyvette
CF Member
Thread Starter
 
Buddyvette's Avatar
 
Member Since: Apr 2004
Location: Honolulu HI
Posts: 93
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thanks for the responses. Just wanted to be sure since these manufacturers list these rockers for Gen I engines only and not The Gen II LTx's, but other threads have discussed using Scorpian, Harland Sharp, etc.
Buddyvette is offline   Reply With Quote
Old 09-04-2010, 05:34 PM   #5
aboatguy
CF Senior Member
 
aboatguy's Avatar
 
Member Since: Jan 2005
Location: Slidell Louisiana
Posts: 8,451
Thanked 0 Times in 0 Posts
Default

I've been running 7/16" 1.6:1 NSA Stainless Comp promags on my DD since early in 2005.....

However, many folks swear by scorpians, crane golds...etc
Ensure you get the correct guideplates and pushrods...seems like lots of folks on these forums end up with valvetrain geometry issues





Mike
aboatguy is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • Roller Rockers For LT1 Center Bolt Heads
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    Standard roller rockers hit stud...GRRRRRR ANTI VENOM C4 Tech/Performance 1 05-25-2014 01:11 AM
    LT4 rocker studs and rockers on a LT1 head?? Strick C4 Tech/Performance 5 08-04-2013 10:33 AM
    Engine final assembly, roller rocker issue. 76stingracer C3 Tech/Performance 15 03-25-2011 04:20 PM
    Roller Rockers for center bolt L98 113 heads C4happy C4 Tech/Performance 5 10-05-2010 01:57 PM
    gm performance valve covers #12497985 will they fit a lt1 and a l98 [help] MITCH C4 Tech/Performance 5 10-03-2003 12:46 PM


    Tags
    1996, arms, bolt, center, corvettes, covers, lt1, lt1s, proform, rocker, rockers, roller, tune, valve, work

    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    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 Off
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump


    All times are GMT -4. The time now is 07:27 AM.