The small-block Chevy 350 engine has two freeze plugs on either side of the engine block and two in the rear of the block on both sides of the camshaft. They are offered in steel or brass. The brass freeze plugs are slightly more expensive but well worth it. Brass, unlike the steel, does not corrode or rust.
Things You'll Need
- Large common screwdriver
- Large pair of pliers
- Can of shellac
- Freeze-plug installer socket
- Extension for installer socket
Push in on one side of the freeze plug with the screwdriver by tapping it with a hammer. The idea is to rotate the freeze plug while keeping it in the block so the plug can be removed with a pair of pliers. If it falls into the block, it can still be removed, but the process is more difficult. Place the screwdriver on the outermost part of the freeze plug and tap it gently to rotate it enough to grab it with the pliers.
Grab the freeze plug with the pliers and rock it left and right while pulling until it comes out of the block.
Coat the edge of the new freeze plug with shellac. Push the freeze plug straight into the hole and tap it gently around the circumference to hold it in place.
Insert the installer socket with the extension in the center of the freeze plug and tap it in. Keep the plug straight and stop when the edge of the freeze plug is 1/16 of an inch below the block housing.
- Don Bowman, A.S.E.; Certified Mechanic
How to Install Freeze Plugs On a Small Block Chevy
The small block Chevy engine has six freeze plugs, two on either side of the engine and two in the rear of...
How to Change a Freeze Plug by the Motor Mount
Freeze plugs exist because of the manufacturer's casting holes left over from engine blocks and cylinder heads. They appear as circular holes...
How to Replace the Freeze Plugs on a GM 350 Truck
Freeze plugs are small plugs placed in the side of an engine block to prevent damage in extreme cold weather conditions. When...
How to Change the Freeze Plug on a 4.3 L Vortec Engine
Freeze plugs are created when the 4.3-liter Vortec engine is cast. There has to be a way of letting the molten metal...
How to Repair the Freeze Plugs on a Chevy Lumina Automobile
Your Chevy Lumina's engine can occasionally be prone to freezing in extreme weather conditions. In order to protect your engine from the...
How to Change the Freeze Plug on a Buick 3.8 Engine
The Buick 3.8-liter engine is commonly found in GM mid-size and full-size sedans, including Pontiac and Oldsmobile models. The engine contains two...
Small Block Chevy Tuning Tips
The Chevrolet Motor division has produced a number of winners when it comes to small block V-8 engine designs. The 265, 307...
Easy Removal of Freeze Plugs
Automotive freeze plugs are round metal plugs installed in the casting holes in engine blocks. These plugs are thin and sometimes rust...