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WTB:Bathtub pistons for 121 head


jefgreen

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Picked up a factory longblock engine over the weekend with low usage and flat top pistons for a 8.5:1. I haven't measured a bore yet but based on how the rest of the engine looks I suspect I could use standard bore pistons. Does anyone have a set of bathtubs to get me to 9.3:1 or 10:1 in good condition they would be willing to part with?

I know Ireland has cast pistons for the 121 but they are 1mm overbore which adds cost to the budget.

Updated - spoke with Ireland last evening and they provided p/n's -

Mahle 9.3:1 standard bore 081 94 00

Mahle 10:1 standard bore 081 92 00

Jeff

jeff.green@philips.com

2000 BMW 528i M-Sport -DD

1976 BMW 2002 - Fjord Blue - current project

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  • 4 weeks later...

Thanks to those who reached out and educated me on the scarcity of these pistons. I could have had a set if I was willing to forgo my son's tuition but wasn't looking to put that much into the engine. I ordered the IE 9.5 cast pistons last week. The set was $420 with rings & wrist pins. I'll get them balanced and they should be more than adequate for my needs.

Consider this WTB closed.

2000 BMW 528i M-Sport -DD

1976 BMW 2002 - Fjord Blue - current project

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