MoparFins

Techical Discussions => Tech- - Engine => Topic started by: Steve on November 11, 2009, 06:28:46 PM

Title: Who's good at stroking?
Post by: Steve on November 11, 2009, 06:28:46 PM
I just got my Virgin 5.9.  Well it is a version, but I swear it was in New Orleans for the great flood.  Took some time to get her to spin over.  While the motor was sealed, the intake was loose and it must have been outside.  I have puddles of rust in the top of the motor, but the moving hardware looks good.  I found water in #2, 4, and 6.  Fortunately, the cylinder walls are salvageable the way they are.  Thank good ness for high alloy blocks.  I can't see the cross hatches any more, but I cleaned up the cylinders and hand turned a hone in them as I washed it out.  I'll get some pics as we go here
 
Since I have to take this apart to clean it up, I was thinking about maybe jazzing it up a bit.  I can surely sell the stock 5.9 crank.  The engine has never been run!
 
Here's the question.  Can I put in JUST a 4" stroke crank and not go with the whole kit?  I can pick up 40 cubes.
 
And incidentally, I found a stroker kit that would turn a 5.2 Magnum into a 471 cu.  Holy Smokes
Title: Who's good at stroking?
Post by: Stitcherbob on November 11, 2009, 06:47:51 PM
Sounds like Dwight is gonna sell some more U1.... (http://www.moparfins.com/forum/smileys/smiley4.gif)

The wrist pins and rings in the pistons might need to be in different locations (custom pistons) for clearance....the bottoms of the pistons get cut to clear the throws of the crank, and the wrist pins sometimes need to be moved up to keep the pistons from rocking too much in the bores. Then the wrist pins get too close to the rings, sometimes invading the oil ring groove so you need a ring expander spring behind it to push it out against the cylinder walls. I would research what stroker kits offer in pistons and why, maybe you won't need any of these extreme modifications.

I'll bet that 471 Magnum smallblock would need a custom computer chip burned to supply enough fuel for all those cubes....larger injectors and more fuel volume/pressure aren't the most efficient way to solve that kind of problem. Maybe drag racing can live with those stopgap measures, but street driving would suffer


Title: Who's good at stroking?
Post by: Steve on November 11, 2009, 07:20:03 PM
Damn I forgot about the wrist pins.  Oh well. . .I stay stock then.  Thanks Bob (http://www.moparfins.com/forum/smileys/smiley4.gif)  It's only a 1/2 of stroke.  and the pistons don't come all the way to the top.  This motor has valve reliefs in the pistons.  Interesting.
 
No U1.  Don't need it.  The used Diesel oil is gobbling up the rust pretty good.  All I need to do it wipe it out and rinse it with some diesel fuel to get any missed debris into the pan.  Then I'll drain the pan and mix up a nice mix of oil and STP and pump it through.  Drain and refill. 
Title: Who's good at stroking?
Post by: Butch Houghton on November 12, 2009, 06:40:23 AM
No maybe to it,  if you use a 4" crank then you gotta have stroker pistons to work with that stroke increase.     Wrist pin moves up 1/2 the stroke increase generally but then you have different compression heights available too for different compression ratios.

Check KB for Hypers,  pretty sure they have them for the 360 w/4" arm in different comp ratios.    If you're building a nice torque motor not a race motor the stock rods should be okay.

Wind up with a 408 incher,   they make a lot more torque!  

Butch


Title: Who's good at stroking?
Post by: Steve on November 12, 2009, 06:46:28 AM
That's what I was trying to do Butch. . . Make it a nice torquie daily.  Definitely more fun to drive
Title: Who's good at stroking?
Post by: Stitcherbob on November 12, 2009, 07:13:03 AM

Quote from: POLARACO
All I need to do it wipe it out and rinse it with some diesel fuel to get any missed debris into the pan.  Then I'll drain the pan and mix up a nice mix of oil and STP and pump it through.  Drain and refill. 

(http://www.moparfins.com/forum/smileys/smiley4.gif) Just don't want to Stanley your new motor......

From the 2010 Web-sters Dictionary:
Stanley: stan-lee , verb, to render useless a mass of cast iron (Fe on the elemental chart)  generally held in high regard by Moparites (from the Latin "moparo".....meaning "those who worship the blue Pentastar"); to inadvertantly throw away a useful object  as in :"He really Stanleyed his checkbook on that one...hope his wife doesn't find out..."









(http://www.moparfins.com/forum/smileys/smiley17.gif)
(http://www.moparfins.com/forum/smileys/smiley2.gif)
Title: Who's good at stroking?
Post by: Stan Paralikis on November 12, 2009, 07:21:13 AM
Yah, Bob.  Like you've never been there.  And I'm not talking about the wife part...(http://www.moparfins.com/forum/smileys/smiley17.gif)
Title: Who's good at stroking?
Post by: Snotty on November 12, 2009, 08:07:45 AM
Who's good at stroking?  Do you know the number of ways I want to answer that question?????  I'll bet I'm not alone either.  :-)
Title: Who's good at stroking?
Post by: firedome on November 12, 2009, 08:18:09 AM
Not hardly!

Title: Who's good at stroking?
Post by: Steve on November 12, 2009, 09:12:43 AM
(http://www.moparfins.com/forum/smileys/smiley4.gif) Just don't want to Stanley your new motor......

 
What do I look like?!?  Some dumb truck driver?
 

Title: Who's good at stroking?
Post by: Steve on November 12, 2009, 09:13:20 AM
Quote from: Snotty
Who's good at stroking?  Do you know the number of ways I want to answer that question?????  I'll bet I'm not alone either.  :-)
 
Got your attention.  Didn't it?  (http://www.moparfins.com/forum/smileys/smiley36.gif) (http://www.moparfins.com/forum/smileys/smiley2.gif) (http://www.moparfins.com/forum/smileys/smiley2.gif)
Title: Who's good at stroking?
Post by: Leaburn Patey on November 12, 2009, 01:55:32 PM
Quote from: POLARACO
Quote from: Snotty
Who's good at stroking?  Do you know the number of ways I want to answer that question?????  I'll bet I'm not alone either.  :-)
 
(http://www.autographdealer.com/images/PamAnderson432.jpg)
Title: Who's good at stroking?
Post by: firedome on November 12, 2009, 02:24:49 PM


Dang, they grow em good up there in Canadia!!

And no, she's not related... (wish she was!  - and

yes, my last name is Anderson, for those who don't know!)


firedome2009-11-12 19:27:20
Title: Who's good at stroking?
Post by: Steve on November 12, 2009, 02:35:53 PM
That's his wife
Title: Who's good at stroking?
Post by: firedome on November 12, 2009, 02:54:13 PM


In my dreams!

But my wife is a babe too.. at least to me ;-)

firedome2009-11-12 20:13:13
Title: Who's good at stroking?
Post by: Snotty on November 14, 2009, 07:18:29 AM
[/QUOTE]
 
Good answer, good answer!