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there are both screw in and press in studs on 350s. it depends on application. i will say that fatory heads are most likely press in. high performance applications may be screw in.
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Are the rocker arm studs in a 1974 Chevy 350 engine threaded or pressed into the head?
pressed in..
Are all Chevy rocker arm studs pressed in?
No you can get screw in studs mainly for high performance engines.
Are the rocker arm studs in a 1997 4.3 Chevy Vortec engine threaded or pressed into the head?
They are pressed in.
How big of a cam can i run in a stock small block Chevy?
Around 450, to 460, lift, 250, to 260 degrees duration, 116, centerline. New answer: If you run anything bigger then a 400 Lift, Then you MUST change the rocker arms to a LONG SLOT rocker arm are you will CUT the rocker arm studs in half. Even with the 400 LIFT it will still try and probley pull the rocker arm studs out of the head if the studs are pressed in like MOST stock heads are.
How do you remove the rocker arm studs on an 85 Chevy 350?
There probably "pressed in" so take a couple of old nuts or balls from the rocker arm, put the nuts on the shaft, then put the rocker nut on and just tighten it up, it willl pull the shaft out of the head. Good Luck
Does the rocker arm boss have to be cut down when replaced stock rocker arm studs with screw in studs?
I think the only time you have to do any cutting is when you're using guide plates.
What is the torque sequence for rocker arm bolts on a 1991 ford 1.9 engine?
There is no torque sequence just torque rocker arm studs to the proper torque
What are the torque specs for the rocker arm studs for a 1995 cavalier?
22 ft-lbs
How do you change from a pressed in rocker arm stud to a threaded one?
you have to remove the pressed in studs ,and tap the hole with the proper thread size for the threaded stud. this may require drilling the heads with the proper size drill, for the tap size you need. you must make sure that the new threaded studs are bigger than the pressed in ones, or you won't be able to thread the stud holes.
How do you adjust valves on 289?
All the 289 ford engines I have worked on have hydraulic lifters and are not adjustable. However on the older ones that have pressed in rocker arm studs they have been known to back out of the head and cause problems.
What causes threads in an engine to break and crack the rocker arm?
You must have a modified camshaft. The lift on the cam is to high of a lift and the rocker arms are binding on the studs. You need to use a long slot rocker arms to stop that. You also need to check the rocker are studs and make sure they are not cut in half.
What is the size of the rocker arm studs on a 1980 L-48 Cylinder Heads?
Unless some one has replaced them with aftermarket studs their more than likely 3/8
