http://www.jegs.com/i/JEGS+Performan...01257/10002/-1


http://www.jegs.com/i/JEGS+Performan...01250/10002/-1


Ones 24 lbs listed for a 305. The other is 16 lbs listed for a 305 & 350. I don't know why they would list it that way, seeing is the flywheel will fit either engine. Just wanted to know if it's better to go with the heavier one. It's going on a 350.

 

You are correct they'll both work fine and why they list one for 305 only is beyond me. I'd personally rather have the heavier one in a street car. I use the heavier one on mine. I had to dig it up but according to this thread, James C was planning on changing his to the heavier one when he got to it, though I don't know his reasoning. https://www.thirdgen.org/forums/engi...questions.html

 

Heavy flywheels help weeeeeeek motors with highway gears, disturb the car somewhat less vaguely off the line when you dump the clutch. (more energy stored in its inertia)

Light flywheels are used in performance oriented setups with powerful motors and higher-ratio gears. They allow the motor to rev quicker and be overall more responsive.

The bigger and/or more powerful the motor, and/or the higher the gear ratio, and/or the lighter the car, the less flywheel weight you need, or want.

The lighter flywheel was used on L69 and LB9 motors. The heavier one was used on LG4 and L03. (never on a 350 .... no telling where THAT came from)

Consider your car.

You do the math.