How do you thread a GM rocker arm?
To be sure to get the right depth, put a piece of tape on the drill at 7/8” from the tip as shown below. Tap and thread the hole using a tapping lubricant or equivalent. Clean the threaded hole with Brake Kleen or equivalent. The EL-41 insert has some kind of thread lock compound on it from the factory.
How do you thread a rocker bolt tower?
Using the 27/64” drill, drill the rocker bolt tower 7/8” deep from the tip of the drill bit. To be sure to get the right depth, put a piece of tape on the drill at 7/8” from the tip as shown below. Tap and thread the hole using a tapping lubricant or equivalent.
What’s the torque of a GM rocker arm?
First thing is there are 2 different bolt sizes, 8MM (usually on passenger cars) and 10MM (usually on trucks and SUV’s). The 8MM torque is specification: 89 in/lbs plus 30 degrees. The 10MM specification is 24 ft/lbs.
Where can I buy a GM rocker arm repair kit?
The bad news, the kit is around $70 (as of this writing). We buy ours from: The only “trick” to using this method is to run the counter bore tool deep enough so the shoulder of the insert will be just below the slot for the rocker stand as it is in the previous repair.
To be sure to get the right depth, put a piece of tape on the drill at 7/8” from the tip as shown below. Tap and thread the hole using a tapping lubricant or equivalent. Clean the threaded hole with Brake Kleen or equivalent. The EL-41 insert has some kind of thread lock compound on it from the factory.
Using the 27/64” drill, drill the rocker bolt tower 7/8” deep from the tip of the drill bit. To be sure to get the right depth, put a piece of tape on the drill at 7/8” from the tip as shown below. Tap and thread the hole using a tapping lubricant or equivalent.
First thing is there are 2 different bolt sizes, 8MM (usually on passenger cars) and 10MM (usually on trucks and SUV’s). The 8MM torque is specification: 89 in/lbs plus 30 degrees. The 10MM specification is 24 ft/lbs.
Can you adjust the rocker arms on a Chevy small block?
Answer: There is no special valve adjustments on this motor as was the case with the older Chevy small block. Rocker arms are just torqued to specs. The most important thing is that the push rods are installed correctly. They are different lengths.