What bore are the cylinders on a 94 Cobra?

InMyPrimeSVT

Founding Member

Jul 31, 2001

869

2

19

Cincinnati

Jan 4, 2007

#1

• Jan 4, 2007

• #1

Can anyone tell me what the stock bore is on a 94 Cobra?

 

I

igotyofire

Member

Feb 26, 2004

774

1

19

Southern California

Jan 4, 2007

#2

• Jan 4, 2007

• #2

4in bore, same as all other 302's including the GT View attachment 413769

 

bill302

Active Member

Nov 2, 2005

2,131

1

46

alabama,gadsden

Jan 4, 2007

#3

• Jan 4, 2007

• #3

correct 4.00 bore and 3.00 stroke and 9.0:1 compression....lol a little extra info. here.

 

InMyPrimeSVT

Founding Member

Jul 31, 2001

869

2

19

Cincinnati

Jan 4, 2007

#4

• Jan 4, 2007

• #4

My block needed some rebuilding and they bored the block .030 for the pistons. I guess my dumb question is...these are bigger?

 

I

igotyofire

Member

Feb 26, 2004

774

1

19

Southern California

Jan 4, 2007

#5

• Jan 4, 2007

• #5

InMyPrimeSVT said:

My block needed some rebuilding and they bored the block .030 for the pistons. I guess my dumb question is...these are bigger?

Click to expand...

yup if your block is bored 30 over as most people like to call it, then now u need pistons with a bore size of 4.030 which piston manufactures make and i believe that will turn your 302ci moter into a 306ci motor

 

Chythar

Recently finished repairing my rear

20+ Year Stangneter

Aug 26, 2004

2,373

140

113

Foothill Ranch, CA

Jan 5, 2007

#6

• Jan 5, 2007

• #6

igotyofire is absolutely correct. The overbore is usually done if there's extra wear on the cylinder walls, or a piston/ring was damaged. You may or may not notice a power difference, it's a very subtle change.