Stroked And Bored

Coolman532

New Member

Nov 29, 2003

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San Jose, CA

Jan 5, 2004

#1

• Jan 5, 2004

• #1

What does it mean when someone says an engine is stroked and bored?

 

Babbat

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May 25, 2003

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Long Island, NY

Jan 5, 2004

#2

• Jan 5, 2004

• #2

Coolman532 said:

What does it mean when someone says an engine is stroked and bored?

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Stroking is increasing the crank's diameter so that you get more displacement. Say you have a 3" diameter crank that displaces 300 cubic inches. You change that crank, all things being the same, w/ a 4" crank, you now have an engine displacing 400 ci. This is an example btw, as it's more complicated than that Boring a cylinder is making the cylinder's "holes" bigger, effectively making the engine bigger.

 

S

Solid Snake

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Nov 26, 2002

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GA

Jan 5, 2004

#3

• Jan 5, 2004

• #3

Babbat has the right idea. Stoke refers to the distance the piston travels within the cylinder (up and down motion). Increasing stroke means that you are increasing the ditance the piston is traveling in the cylinder. Increased stroke = more displacement and gobs of torque

Boring, as Babbat mentioned, is englarging the actual diameter of the cylinder itself.

 

Coolman532

New Member

Nov 29, 2003

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San Jose, CA

Jan 6, 2004

#4

• Jan 6, 2004

• #4

Does it cost alot of money to stroke and bore the engine. And the (up and down motion) craked me up. Just like your sig.

 

Babbat

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May 25, 2003

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Long Island, NY

Jan 6, 2004

#5

• Jan 6, 2004

• #5

Coolman532 said:

Does it cost alot of money to stroke and bore the engine. And the (up and down motion) craked me up. Just like your sig.

Click to expand...

Stroking and boring can be done by most machine shops. For a stroke/bore, you need a new bottom-end kit (rings, pistons, crank, rods) and a shop to do the boring and possibly handle clearance issues w/ the rods considering your new stroke. The price will vary, depending on the shop and the new part you buy.

 

Slow5.0

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Feb 13, 2003

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Portland, OR

Jan 6, 2004

#6

• Jan 6, 2004

• #6

stroked and bored mean you need 5.0 to do that right

 

jadesville

the polarbear conservation corps protects a polarb

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Oct 8, 2003

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Gresham, OR

Jan 6, 2004

#7

• Jan 6, 2004

• #7

Seth5.0 said:

stroked and bored mean you need 5.0 to do that right

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StangVert00

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Mar 2, 2003

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Stoneham, MA

Jan 6, 2004

#8

• Jan 6, 2004

• #8

I think the words "Stroked and Bored" are in the Beach Boys song "Little Deuce Cuope". (I think) Correct?


StangVert00

 

Bornstanger

Uncle 'Kiss Me''Kiss Me''Kiss Me''Kiss Me'er

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Oct 20, 2001

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Strongsville, OH

Jan 6, 2004

#9

• Jan 6, 2004

• #9

jadesville said:

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ahem....