`90 l98 3/8 or 7/16 studs
Thread Starter
Burning Brakes
Joined: Jun 2004
Posts: 752
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From: richardson tx
`90 l98 3/8 or 7/16 studs
i do have my corvette for sale but if it doesent im going to buy some 1.6 roller rockers what i need to know is do i have 3/8 or 7/16 studs? the heads are stock 202 heads.
Melting Slicks
Joined: May 2003
Posts: 3,490
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From: Hewitt NJ
Originally Posted by JAKE
3/8" studs, unless someone changed them.
Jake
Jake
Le Mans Master
Joined: Sep 2004
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From: Conroe Texas
Originally Posted by Admiral94
Correct, but I believe the part that screws into the head is 7/16" so it might be a good time to upgrade to 7/16" studs. You'll be getting rockers anyway and there really isn't much (if any) of a price difference between 3/8" and 7/16" ones. 7/16" studs are relatively cheap and it's an easy way to strengthen your valvetrain, especially at high rpms.
7/16" studs are way more ridgid than the 3/8's. and if you decide to run a stud girdle, that would also not be a problem.
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Originally Posted by steve1ph2
i do have my corvette for sale but if it doesent im going to buy some 1.6 roller rockers what i need to know is do i have 3/8 or 7/16 studs? the heads are stock 202 heads.
RACE ON!!!
Last edited by CFI-EFI; Dec 1, 2005 at 05:06 PM.
Race Director
Joined: Sep 2000
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From: The Top of Utah
Indeed. But not with 2.02 heads. I had written the response as though it might not be a C4, because the year wasn't in the post. After I clicked "Reply" I saw the title to the thread, with the year. I was out of time and I tried to do a "quick save". Maybe it wasn't as graceful as it could have been.
RACE ON!!!
RACE ON!!!
Le Mans Master
Joined: Sep 2004
Posts: 6,019
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From: Conroe Texas
Originally Posted by CFI-EFI
Indeed. But not with 2.02 heads.
Originally Posted by CFI-EFI
Maybe it wasn't as graceful as it could have been.
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Team Owner
Joined: Sep 2002
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From: OBAMA IS HITLER
i'm thinking either aftermarket heads, or they're stock '90 113's that were ported and professionally worked over. hard to tell, so i say he'll have to pull the valve covers to find out about the studs.
Team Owner
Joined: Dec 2000
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From: SE NY
Cruise-In II Veteran
Pull a valve cover; if you see #113 the valves are 1.94"/1.50" if stock.
The studs are 3/8" at the rockers with 7/16" at the threads.
Under the studs are non-hardened guide plates.
For these reasons I prefer to go with non self-aligning RRs and install hardened guide plates & push rods with 7/16" studs. The overall price is about the same as with self-aligning RRs and you need to pull the stock guide plates anyhow.
The studs are 3/8" at the rockers with 7/16" at the threads.
Under the studs are non-hardened guide plates.
For these reasons I prefer to go with non self-aligning RRs and install hardened guide plates & push rods with 7/16" studs. The overall price is about the same as with self-aligning RRs and you need to pull the stock guide plates anyhow.