Main Girdle Question???
Thread Starter
Instructor
Joined: May 2006
Posts: 217
Likes: 0
From: Westchester NY
Main Girdle Question???
1992 Corvette Lt1 6 speed
I need to know if anyone is running an LT1 engine with a main girdle, which oil pan (brand/PN#) do you use that clears the girdle because the stock one didn't
. Thank you in advance.
I need to know if anyone is running an LT1 engine with a main girdle, which oil pan (brand/PN#) do you use that clears the girdle because the stock one didn't
. Thank you in advance.
Race Director
Joined: Jan 2008
Posts: 16,027
Likes: 170
From: oregon
last engine builder i asked about this mentioned that the ribs will rip out of the casting where the main area meets the block before main studs will break. the girdle might help keep bearings in place if you're heading above 7,000rpm though. then again if you're going over 7k a dart block would be smart. i used the arp main stud kit with the factory windage tray, shift at 6,500 constantly and redline at 6700. not a problem one 15,000 miles later.
Safety Car
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
I have run stock 4 bolt 350 blocks to over 650HP and 7500RPM (with fairly heavy rotating assy's) before the caps started to show any signs of walking. A GENII LT1 is no different in the caps/main webbing area and few people can make that kind of HP N/A in a street car.
Will
Thread Starter
Instructor
Joined: May 2006
Posts: 217
Likes: 0
From: Westchester NY
Yes my block is 4 bolt main rkl. Now I see why nobody here runs a main girdle and there is no direct fit oil pan out there for it either. Thanks rklessdriver and racebum for your help. 
Drifting
Joined: Dec 2005
Posts: 1,360
Likes: 3
From: NORTHEAST
If you are worried about the caps billet caps would be a better choice over a girdle and studs don't make the caps andy stronger as they are just a grey cast iron cap, Its like putting a new set of ARP rod bolts in old set of rods it does not make the rod any stronger it just better hardware.
If you get into some serious power splayed caps are the way to go.
If your bloc has the 2482 on the center caps they are the nodular iron caps and GM rates them at 450 horse.
Here is a pic of a late model block we installed billet caps on.
Here is a pic of a cap that came of a studed block.
If you get into some serious power splayed caps are the way to go.
If your bloc has the 2482 on the center caps they are the nodular iron caps and GM rates them at 450 horse.
Here is a pic of a late model block we installed billet caps on.
Here is a pic of a cap that came of a studed block.
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Drifting
Joined: Dec 2005
Posts: 1,360
Likes: 3
From: NORTHEAST
Splayed caps are tied into the pan rails which doesn't put all the torque and HP just to the webbing of the block.
