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Re: HELP! Will a 121 head with 72 stamp work on a (archive)

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Posted by Tim on April 29, 2000 at 15:45:30:

In Reply to: HELP! Will a 121 head with 72 stamp work on a 76?! posted by Blue PISSED OFF 02 on April 29, 2000 at 15:03:34:

Hi Chris,

Generally speaking the raised "grand piano" top pistons will only work on an E-12 cylinder head. With the 121 or 121TI head the raised "bath tub" type pistons will work.

Refer to Mike McCartney's "BMW 'O2 Restoration Guide" on pgs 106-110 for extensive explainations on cylinder heads,valves and piston uses. HTH.



: I just found out that #2, & #4 pistons on my car have very low compression. I fucked them up by using my dual side drafts but they were not tuned correctly.I have a good head with the 121 72 stamp on it, should I rebuild the 76 or use the 72. I also want to use a set of the tii piano tops in place of the stock pistons WILL IT WORK??!
: Thanks to everyone that keeps this board going!!!
: Chris Lingle

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