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| alanstock |
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who makes flat tops for the au engines? where can i get them? not having any luck searching this info!!
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| ranga83 |
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Precisionintl.com they are au flattops 040 over so you will need au rods and a rebore
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| esi635 |
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These guys can make whatever dish or dome you want. My au runs 11.7 comp with these pistons and spool barra rods.
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| 66 coupe |
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CP pistons
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| alanstock |
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ranga83 they would be the mahle motorsport forged ones PFO3986L6040MMS ?
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| ranga83 |
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Yep
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| alanstock |
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thanks. i thought so, just wasnt to sure as the pic shows a small dish. should have mentioned i am looking for them for a speedway engine on methanol. needs 11:1 or better compression
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| ranga83 |
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Attachment: 2013-07-18%2019_41_55.jpg [ 429.72 KiB | Viewed 374 times ]
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| esi635 |
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Mine are cp pistons the dome sits 1.5mm above the deck with big valve reliefs on both sides. I don't recommend altering the head in any way for compression due to detonation problems
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| ranga83 |
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esi635 wrote: Mine are cp pistons the dome sits 1.5mm above the deck with big valve reliefs on both sides. I don't recommend altering the head in any way for compression due to detonation problems What head gasket are you using? I have a set of pistons im putting into a spare bloke atm that are 1mm above deck
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| esi635 |
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It's a mls-r. Gasket. 1.3 mm thick. It has 5 layers and is pretty much indestructible
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| esi635 |
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My setup was a bit overkill. But I figured it is allot easier to take some off the pistons than put it on. The pistons are flat top with 1mm taken off the outside 10mm so the dome fits up inside the oval shaped combustion chamber.
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| ranga83 |
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Im slapping one together with ba gas pistons. But the dome is 040 proud. So i need to use a h/g thats 080 so i still have my 040 quench
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| esi635 |
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You could use two au mls gaskets. A bit dodgy but plenty of turbo guys do it with success. My quench is only .033 A bit tight but so far so good.
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| ranga83 |
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That would only give me 060/ 020quench. Bit tight for my likeing. Was thinking just 2 monotorque gaskets. Should give me just enough. Its only a slap together engine until i get the flattops in my other block
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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