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408 stroker build

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  #311  
Old 01-30-2011 | 09:49 PM
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Originally Posted by matty675
so youre saying to run the pump to a resevoir and then run all my lines to the reservoir?

i thought i could just run everything straight to the pump?
You could... but, not sure how well it would work..... I didn't see much in the way of how much volume the pump would move...... and I didn't feel like doing the math to figure it out.

With JUST the pump, the volume it moves makes a big difference in how fast your vacuum accessories react. If you don't mind slow vent switching, and even slower 4wd engagement, not to mention your vents switching when you put the truck in 4wd.... and take it out......... reservoir isn't necessary.

With the reservoir, the pump won't run nearly as much, your vents and 4wd will be much better behaved..... It also has the added advantage of the pump lasting longer.....

You already have a reservoir in the truck, it is just cleverly concealed...... Make use of that, plumb from there out, and I think you will be happy.
 
  #312  
Old 01-30-2011 | 10:03 PM
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ok sounds good

main benefit here, for me, is the vac system being independent of the engine
 
  #313  
Old 01-31-2011 | 01:47 PM
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Originally Posted by HeyYou
Part of the piston travels out of the bore on a stock engine too. The sleeve will end up being the same length the cylinder was initially, so, it really shouldn't be a problem.
actually no it doesnt.mag heads are closed chamber(dual quench pads).oem 360 the pistons are approx .060thou down in the hole.

on a stroker you want to zero deck pending rod choice(.0000-.0030 in the hole).this gives a tight quench with closed chamber heads.only thing seperating the piston and dual quench pads(closed chamber)is the head gasket.if the piston is out of the hole you have problems.
 
  #314  
Old 01-31-2011 | 01:53 PM
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bottom of the hole stands. the bottom of the hole.
 
  #315  
Old 01-31-2011 | 02:22 PM
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sure
 
  #316  
Old 01-31-2011 | 04:47 PM
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Part of the piston can travel out of the bottom, just not past the rings or they'll bind up going back in and you'd be hating life. If the piston comes up out of the top of the bore, you've got only the thickness of the head gasket to go before spanking the top of the piston into the head. The quench area is that space between the head and gasket. You need that for proper flame propagation
 
  #317  
Old 01-31-2011 | 05:28 PM
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Prius here I come
 
  #318  
Old 02-02-2011 | 02:49 PM
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he said +.010 will be no problem. he has gone .060 on plenty of 360s. .040 will be fine he says.

but he doesnt have a means of sonic testing, so id have to arrange it...
 
  #319  
Old 02-02-2011 | 04:48 PM
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Originally Posted by matty675
he said +.010 will be no problem. he has gone .060 on plenty of 360s. .040 will be fine he says.

but he doesnt have a means of sonic testing, so id have to arrange it...

+.60 on a Magnum 360 or LA 360...There's a difference, make sure he knows that...

Even the book "How to Build a Small Block Stroker" says +.20 is all you can safely go on a Magnum block....But there's a bunch of 408's out there...Who knows? I guess I'm glad I'm staying std bore...
 
  #320  
Old 02-02-2011 | 04:56 PM
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See if you can find a place that will do the sonic check for you, BEFORE you do the bore. Conversely, you might be able to rent the equipment from somewhere around you that does equipment rental..... something to look into anyway.
 


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