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| Numbers on pistons https://www.ausmini.com/forums/viewtopic.php?f=2&t=59141 |
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| Author: | xbellx [ Sat Nov 28, 2009 3:29 pm ] |
| Post subject: | Numbers on pistons |
Pulled the head off my 1275 & the pistons have stamped on them 1253 + 1.524 Inderstand that the 1.524 is 60thou over but what does the 1253 stand for. They are dished pistons.[/b] |
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| Author: | drmini in aust [ Sat Nov 28, 2009 4:01 pm ] |
| Post subject: | |
Pistons are Hepolite 21253 probably. These are 9.75:1 C/R (actually a bit more in early blocks). They are more expensive than the 21251 (8.8:1), but are a stronger piston. Ring widths in these pistons are metric, which is a pity- the original rings are expensive and there are no or few alternative suppliers. |
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| Author: | xbellx [ Sat Nov 28, 2009 4:05 pm ] |
| Post subject: | |
Thanks Doc |
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