Are solid lifters better than hydraulic?

Solid lifter cams can be a good choice for a hot street or race engine. They usually have faster ramps (lobes) than hydraulic cams, but not as fast as roller cams. They also need stouter springs than a hydraulic cam, but not nearly as stiff as a roller cam.

How do I know if my engine has solid or hydraulic lifters?

Another way to quickly determine solid or hydraulic lifters is to push down firmly on the lifter end of the rocker arm. Hydraulic lifters will allow for some movement, whereas solid lifters will not budge.

What’s the difference between a hydraulic cam and a solid?

Hydraulic Camshaft Shootout. Without a doubt, solid cams carry a certain mystique. The real difference is in the lifters, with a corresponding change in cam-lobe profile to accommodate the requirements of the lifter. Solid cams have a reputation for higher rpm power, and for some, the image of a race-only piece.

Can you put a roller cam in a flat-tappet block?

Flat-tappet cam lobes are ground at a very slight angle to prevent the cam from moving. Roller cams cannot be machined this way, so a roller-cam button is employed to limit cam movement. The spec for this is 0.003 to 0.005 inch.

Which is better roller cam or flat tappet?

The flat-tappet cam lobe is more pointed at peak lift, while the roller cam nose tends to be rounded; this means the roller is holding the valve open at higher lift for a longer period of time, which results in a greater fuel/air charge. The lobe shape also opens the valve much faster.

What cam should I put in my 350?

COMP Cams CL12-600-4 is the biggest cam for stock 350 and plays its role as the topper since 1976. This Chevy cam increases horsepower along with torque performance. It is the best cam kit for 350 small blocks as it performs efficiently for years without any hassle.

Do you have to break in a flat tappet cam?

Breaking in an engine with a flat tappet camshaft is critical to its performance and long life. This mates the lifters to the cam lobes. Most camshafts will come with specific break-in procedures.

How long does it take to break in flat tappet cam?

20 minutes

How important is Cam break in?

Perhaps the most important step in the break-in process is to bring the engine immediately up to a minimum of 2,500 rpm or more. This is vital because most V8 pushrod engine camshafts are not pressure-lubed. Instead, the cam relies on splash oiling brought up from crankshaft movement.

How long does it take to break in a new cam?

This process should only take about five minutes but can sometimes take longer. A big-block Chevy will take much longer to pump oil to all the rocker arms-perhaps as long as 20 minutes.

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