Hey does anyone on here know what a stroker kit does and how can it benefit my engine?

 

What's your engine?

A "stroker" has a crankshaft that moves the piston farther with each revolution, therefore increasing the "stroke". Using such a crank requires properly matching the rods and pistons so the crown of the piston remains in the proper place in the cylinder at the top of the stroke. Typically, grinding of the block is required so the rods clear the oil pan rails as they swing around in the space originally intended for a shorter stroke. And, most kits assume the cylinders will be bored .030" over stock. Sometimes a special camshaft (small circle) is required to keep things from hitting each other.

The longer stroke means the piston is pushing down on a longer arm, so the torque the engine puts out is increased. It also increases the displacement of the engine, which tends to increase power. The net effect is increased torque and increased power.

 

Do a search on this site and you will find all the info you need.

 

BrianS,

Don't know how much you know about engines but a great place to learn real quick... helped me a hell of a lot, was this site.

http://www.howstuffworks.com/engine.htm

It's got animated pictures and totally explains everything. If I remember right, at the end it has a bunch of questions with answers, one being about stroking an engine. As I understand it,
when you stroke the engine you increase the displacement of the engine, changing it from lets say a 350 to a 383 cubic inch engine. With all things being equal, this alone will give you more power (torque). (I may not be very technical, but I know a little bit about a lot of stuff)


Hope this helps!

 

Just imagine you're trying to torque down a bolt and you need the most torque possible and you have a 3/8 inch rachet and an even longer breaker bar that you can use. You use the longer breaker bar because you can place your hand further away from the pivot point, which is the bolt. A stroker crank does the same thing. It places the connecting rod's center line a little bit further away from the crankshaft's center line. But as five7kid mentioned, there is more involved than just slapping in a longer stroke crank.

Tom

 

A stroker kit could also lower the displacement of the motor depending on what stroker motor you're building.

 

How much would it cost to build a 383 stroker?