bored out engine?

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05-03-2007, 11:16 PM

#11

5speedstang

4th Gear Member

Join Date: Jun 2006

Location: macomb

Posts: 1,777

RE: bored out engine?

didnt they bore and stroke a s197 on horsepower tv last week or the weekbefore and it ended up putting 5xx at the wheels?

05-03-2007, 11:28 PM

#12

03greyGT

3rd Gear Member

Join Date: Jan 2006

Location: Akron, OH

Posts: 835

RE: bored out engine?

From what ive heard, our 4.6 motors dont respond hardly at all to being stroked.

05-03-2007, 11:29 PM

#13

SVTBill

5th Gear Member

Join Date: Sep 2006

Location:

Posts: 2,437

RE: bored out engine?

Quote:

A bored engine is NOT refered to as stroked, they are two seperate things. Also boring does not enlarge the combustion chamber, it enlarges the cyclinder bores. The combustion chamber is part of the head.

the combustion chamber is between the piston and the head where the explosion happens

at least thats what i thought

05-03-2007, 11:33 PM

#14

blueherd02gt

5th Gear Member

Join Date: May 2006

Location: Tennessee

Posts: 4,182

RE: bored out engine?

Did they ever dyno it?
I'm going this route in my 07gt

Quote:

ORIGINAL: 5speedstang

didnt they bore and stroke a s197 on horsepower tv last week or the weekbefore and it ended up putting 5xx at the wheels?

05-03-2007, 11:41 PM

#15

David_K

5th Gear Member

Join Date: Mar 2005

Location:

Posts: 3,967

RE: bored out engine?

.my big bore (.160 over) stroker makes 416hp and now its getting ford gt heads and a sheetmetal intake manifold and bigger cams shooting for 500.

the 4v responds best to increased displacement the 2v hardly sees any improvement.

the BBS 3v made 360hp on horsepower tv

05-05-2007, 12:45 AM

#16

JD1969

Pro. B.S. caller outer

Join Date: May 2004

Location: IL

Posts: 9,644

RE: bored out engine?

Quote:

ORIGINAL: SVTBill

Quote:

the combustion chamber is between the piston and the head where the explosion happens

at least thats what i thought

No Bill, the combustion chamber is in the head. It's the small dished out area that the valves are in. When you see heads in a catalog the list the combustion chamber volume in cc's. You could make an argument that the small space when piston is at TDC is technically part of the combustion chamber but when talking about heads it is accepted that the combustion chamber is in the heads.