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09-14-2019, 08:11 AM
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#1 |
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Member
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Location: West Layfayette
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440 6 pack
Putting together a stocker bottom end and I have 3 blocks to choose from.
The best block checks out with a minimum of .171 cylinder wall thickness. Before machine work is done. My pistons are .060 over. The question I have is, would you fill the block or sleeve all eight cylinders? I've had someone tell me do not fill the blocks you will lose ring seal. Last edited by littlemanjoe; 09-14-2019 at 08:13 AM. |
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09-14-2019, 12:43 PM
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#2 |
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Senior Member
Join Date: Aug 2004
Location: So. Cal.
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Re: 440 6 pack
The reason to fill blocks is to preserve ring seal. Increases rigidity. Fill as high as possible leaving 1-1/2" at the top.
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09-14-2019, 01:25 PM
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#3 |
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Senior Member
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Location: Cincinnati
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Re: 440 6 pack
We always ran filled blocks never had any problems with ring seal but i never had a mopar if that makes any difference.
Jerry Retired 3490 3492 STK SS SST |
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09-15-2019, 12:44 PM
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#4 |
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VIP Member
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Re: 440 6 pack
Is .171 on thrust side of cylinder.
That is the most significant spot.
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John Irving 741 Stock 741 Super Stock |
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09-16-2019, 08:21 AM
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#5 |
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Re: 440 6 pack
Yes on the thrust side towards the bottom.
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09-16-2019, 12:45 PM
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#6 |
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Re: 440 6 pack
I would rather see it on the bottom than the top
for the thinner side. My big blocks are thicker than that by .030/.040. I think you would be fine with a filled block at that dimension. Sometimes my filled blocks leaked better after they had been reringed once....But they were still decent the first time.
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John Irving 741 Stock 741 Super Stock |
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09-18-2019, 10:55 PM
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#7 |
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Member
Join Date: Feb 2018
Location: West Layfayette
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Re: 440 6 pack
Does anyone know if it is legal to put 4 bolt main cap in?
The type I'm looking at bolt through the side of the block. |
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09-19-2019, 02:16 PM
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#8 |
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VIP Member
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Location: Boulder City, Nevada 89005
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Re: 440 6 pack
Nope!
Really not needed in a Mopar 440 at this power level in my opinion.
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John Irving 741 Stock 741 Super Stock |
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