Author Topic: PIston help/question (Read 4243 times)

richie_s999 · « **on:** April 13, 2009, 07:00:40 AM »

Hey guys.....

I am building a stroker motor for my car, I have a spare M42 motor with 191oookm and a M44 motor with all the wiring (MAF

) and am looking for pistons to use. Was hoping to find some s52 pistons at a good price, but no luck in finding them so far.

My question is What pistons can I use with no alterations to the piston in place of the S52 pitson to get a 2l stroker?

This car is my daily driver too (1000km a week) and not looking for a "loose" fit.

Rich

1991 E30 M42 · « **Reply #1 on:** April 13, 2009, 10:48:17 AM »

which engine do you plan on building

richie_s999 · « **Reply #2 on:** April 14, 2009, 11:49:07 AM »

I am using the block from the m42, and the crank from the m44, and was hoping for the s52 size pistons, which should give me the 2.0l stroker. just need to find some pistons of the same size and quality so seeing what others have sugested

1991 E30 M42 · « **Reply #3 on:** April 14, 2009, 12:49:00 PM »

I'm running m44 internals with m44 2nd overbore pistons and I'm right at 2.0l, and yes it is a daily driver and I drive it hard every day.

1991 E30 M42 · « **Reply #4 on:** April 14, 2009, 12:56:54 PM »

http://m42club.com/forums/showthread.php?t=3523

richie_s999 · « **Reply #5 on:** April 15, 2009, 12:05:04 AM »

did you have to shave the m44 pistons or bore the cyl out?

1991 E30 M42 · « **Reply #6 on:** April 15, 2009, 12:24:10 AM »

bore out the block, i also decked the head

richie_s999 · « **Reply #7 on:** April 15, 2009, 10:29:22 AM »

I thought the M44 pistons and the M42 pistons were the same bore, but the M44 ones were taller?

hesgone2fast · « **Reply #8 on:** April 22, 2009, 04:45:55 AM »

if you use S50 pistons(86mm) instead of S52 you get 1952cc.
4 S52 pistons with 45,000kms on ebay:
http://cgi.ebay.de/BMW-E36-M3-3-2L-Kolben-Antrieb-Motor_W0QQitemZ120406969386QQcmdZViewItemQQptZAutoteile_Zubeh%C3%B6r?hash=item120406969386&_trksid=p3286.c0.m14&_trkparms=72%3A1229%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318

email the seller, he might be willing to ship worldwide.

richie_s999 · « **Reply #9 on:** April 23, 2009, 09:39:02 AM »

Quote from: hesgone2fast;70565

if you use S50 pistons(86mm) instead of S52 you get 1952cc.
4 S52 pistons with 45,000kms on ebay:
http://cgi.ebay.de/BMW-E36-M3-3-2L-Kolben-Antrieb-Motor_W0QQitemZ120406969386QQcmdZViewItemQQptZAutoteile_Zubeh%C3%B6r?hash=item120406969386&_trksid=p3286.c0.m14&_trkparms=72%3A1229%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318

email the seller, he might be willing to ship worldwide.

sent him a message, hopefully he will ship!!!