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| Head Gasket https://www.ausmini.com/forums/viewtopic.php?f=2&t=81878 |
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| Author: | Gezo [ Sun Jun 23, 2013 6:07 pm ] |
| Post subject: | Head Gasket |
Just about to put on my head on to finish my 1275 engine rebuild. Engine has 11.34:1 compression, bit high for my liking for road use. Was going to use PAYEN BK450 Head Gasket but will compress to .035. Is there a thicker head gasket or shim, I can use to lower the compression. From my calculator if I raise the height another, .040 compression will be 9.67:1 .030 compression will be 9.92:1 .020 compression will be 10.17:1 Assistance would be good |
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| Author: | Bubbacluby [ Sun Jun 23, 2013 6:08 pm ] |
| Post subject: | |
just use 2 head gaskets. |
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| Author: | drmini in aust [ Sun Jun 23, 2013 6:59 pm ] |
| Post subject: | |
PM sent, I had replied to your email but it bounced back. 2x BK450 gaskets worked fine for me until I got around to opening the chambers out a bit more. [edit] Try a Cometic- http://www.cometic.com/automotive-gaskets.aspx [edit 2] Looks like thickest one sold is .040". http://www.shopengineparts.com/parts.as ... ini+1300cc |
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| Author: | Convertible Mini [ Mon Jun 24, 2013 7:43 am ] |
| Post subject: | head gasket |
As you still have the head out why don't you grind the chambers out a bit larger to increase the volume. Make sure you measure them individually to get them equal. I am not very keen on having two head gaskets especially on that High a compression. It will only need to run a bit lean and blow between 2 and 3 where you have two exhaust valves side by side. Gets pretty hot in that spot. |
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