NixVegaGT Nicolas Wiederhold Minneapolis, MN (659 posts) Registered: 10/16/2007 05:30AM Main British Car: '73 Vega GT 4.9L Rover/Buick Stroker |
Block Filler
Here's a pic from the HardBlok site:
I don't think we would have to fill the block this high. What I'm trying to wrap my mind around is how it helps cooling? Does it keep the coolant moving faster? Anybody ever done this? |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Block Filler
I think it's approx. 15^ atdc of crank rot. for major heat/pressure? What "HardBlok" say about thermal factor? I thinkin, same pump= increased velocity, but reduced volume through rad. Anybody a thermal dynamics engineer out there? roverman.
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NixVegaGT Nicolas Wiederhold Minneapolis, MN (659 posts) Registered: 10/16/2007 05:30AM Main British Car: '73 Vega GT 4.9L Rover/Buick Stroker |
Re: Block Filler
I suppose after putting concrete in the block it's gonna get heavier. I wonder how much?
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hoffbug Tony Hoffer Minnesota (323 posts) Registered: 10/15/2007 05:25PM Main British Car: Olds 215 EFI |
Re: Block Filler
Block fill helps rigidity of the block. It doesnt help with cooling.. Depending on engine design you might actually need an oil cooler even after a partial "street" fill.. IE.. BB Chevys have an oil passage that gets entoumed when you blockfill.. The coolant in my 406 SBC ran real cool with a partial block fill.. The oil got real hot real fast.
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NixVegaGT Nicolas Wiederhold Minneapolis, MN (659 posts) Registered: 10/16/2007 05:30AM Main British Car: '73 Vega GT 4.9L Rover/Buick Stroker |
Re: Block Filler
Yeah. I guess I didn't phrase my question about the "help" cooling. I was wondering how it doesn't hurt it. The oil temp makes sense.
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NixVegaGT Nicolas Wiederhold Minneapolis, MN (659 posts) Registered: 10/16/2007 05:30AM Main British Car: '73 Vega GT 4.9L Rover/Buick Stroker |
Re: Block Filler
On this note, in regard to the deck plate thread too, how well does the block filler seal the water jacket? Let's say the bottom of my T6 tube welded to the deck plate plan was not welded to the bottom of the water jacket, would the filler seal the block? I mean concrete does leak through cracks. Would this do it too?
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Block Filler and beyond
Nic, I've used Hardblock, in the past and it was consistancy of "grout". Why would you, not weld bottom of alum. liner? Seems to me, flanged and shrunk-fit into alum. deck plate, through the plate, with alum. liner welded to block at bottom, possibly welded on top. Is this not a stronger way? I always thought, concrete contained gravel ? I wouldn't fixate too much about additional weight, maybe they use Lava for gravel? LOL. roverman.
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NixVegaGT Nicolas Wiederhold Minneapolis, MN (659 posts) Registered: 10/16/2007 05:30AM Main British Car: '73 Vega GT 4.9L Rover/Buick Stroker |
Re: Block Filler and beyond
I'm totally with you on the welded all around. Just fleshing it out. The only reason would be if I literally couldn't get the torch into the bore or through the space of the crankcase. Totally possible. What if I don't get a complete penetrating weld?
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Block Filler/ no gravel
May want to consider a, straight or bendable torch head. "If" you preheat adequately and have enough heat/correct angle on torch head, should be adequate. Helium is the hottest/cleanest gas for alum. and you can run "DC"., produces more heat, your current isn't "reversing" half of the time. Boeing Aircraft pioneered this method ,for tig. welding alum., decades ago. I suspect if you run at lest 2" of block filler, should not be an issue. roverman.
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