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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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whats a stroker ?

  • Thread starter Thread starter toplessmustang
  • Start date Start date Aug 16, 2004

toplessmustang

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#1
  • Aug 16, 2004
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yeah as you can see i'm new to this. whats a stroker, and what do i need to do to make my 302 one, what would it be after that ? my rear main seal is leaking, so i was either going to pull the tranny and do a 5-speed swap or pull the motor and rebuild it. just trying to figure out which way to go.
 
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baglock1

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#2
  • Aug 16, 2004
  • #2
A "stroker" is a motor in which the cubic inch displacement (cid) has been increased by increasing the stroke length. There are three factors that determine a motors cid. One is the number of cylinders, in our case, 8. The second is the bore which is the diameter of the piston. The third is the stroke which is the distance that the piston travels up and down.

Stroker motors require a complete rebuild as the crankshaft, pistons, and connecting rods are all swapped. They are not a simple bolt-on mod.

The two most common cid stroker kits for the 5.0L are the 331 (4.03" bore x 3.25" stroke) and 347 (4.03" bore x 3.4" stroke).
 
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xYoung347x

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#3
  • Aug 16, 2004
  • #3
baglock1 said:
A "stroker" is a motor in which the cubic inch displacement (cid) has been increased by increasing the stroke length. There are three factors that determine a motors cid. One is the number of cylinders, in our case, 8. The second is the bore which is the diameter of the piston. The third is the stroke which is the distance that the piston travels up and down.

Stroker motors require a complete rebuild as the crankshaft, pistons, and connecting rods are all swapped. They are not a simple bolt-on mod.

The two most common cid stroker kits for the 5.0L are the 331 (4.03" bore x 3.25" stroke) and 347 (4.03" bore x 3.4" stroke).
Click to expand...
Can't say it better myself.
 

onesticker

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#4
  • Aug 16, 2004
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Hey badlock1, hot girl in the avatar...oh yeah, nice car too
 
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baglock1

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#5
  • Aug 17, 2004
  • #5
onesticker said:
Hey badlock1, hot girl in the avatar...oh yeah, nice car too
Click to expand...

My wife and my mustang: two of my favorite things in the world.
 

1slow95

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Aug 17, 2004
#6
  • Aug 17, 2004
  • #6
baglock1 said:
A "stroker" is a motor in which the cubic inch displacement (cid) has been increased by increasing the stroke length. There are three factors that determine a motors cid. One is the number of cylinders, in our case, 8. The second is the bore which is the diameter of the piston. The third is the stroke which is the distance that the piston travels up and down.

Stroker motors require a complete rebuild as the crankshaft, pistons, and connecting rods are all swapped. They are not a simple bolt-on mod.

The two most common cid stroker kits for the 5.0L are the 331 (4.03" bore x 3.25" stroke) and 347 (4.03" bore x 3.4" stroke).
Click to expand...



Plus I think you have to get the block machine/clearanced so the rods don't hit on the block.
 

Rootus

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#7
  • Aug 17, 2004
  • #7
Low-5.0 said:


Plus I think you have to get the block machine/clearanced so the rods don't hit on the block.
Click to expand...
I believe that's only true for the 347 (?).

Dave
 
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baglock1

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  • Aug 17, 2004
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HairyCanary said:
I believe that's only true for the 347 (?).
Click to expand...

The 331 still needs like a 1/4" of clearance machined into it.

on edit: I just looked into it because I figured my memory needed a refresh too. CHP says no clearancing is needed, but my old machine shop guru, said there was. I'd probably side with CHP on the matter.
 

Rootus

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#9
  • Aug 17, 2004
  • #9
baglock1 said:
The 331 still needs like a 1/4" of clearance machined into it.
Click to expand...
Ahh, good to know, thanks for the info!

Dave
 
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baglock1

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#10
  • Aug 17, 2004
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HairyCanary said:
Ahh, good to know, thanks for the info!

Dave
Click to expand...

Dave, see my edit above. I may have spoke too soon.
 

Rootus

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#11
  • Aug 17, 2004
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baglock1 said:
Dave, see my edit above. I may have spoke too soon.
Click to expand...
Ahh, dammit... my small mind confuses easily, be gentle...

Dave
 
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