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Pampered-Z · 10-25-2011, 05:18 PM

I run them.

READ THE PART THAT STATES: According to them a 50RA OR FINER finish is needed on the head for proper sealing.

This means you need to make sure the block and heads are finished to this or you could have sealing issues. People have not done this, and with high compression ( boost/nitris )had to tear their engines down to get them refinished properly.

10-25-2011, 05:18 PM	#4
Pampered-Z Sliderule / Moderator Join Date: Oct 2004 Location: Catawissa PA Posts: 2,294 iTrader: (1)	I run them. READ THE PART THAT STATES: According to them a 50RA OR FINER finish is needed on the head for proper sealing. This means you need to make sure the block and heads are finished to this or you could have sealing issues. People have not done this, and with high compression ( boost/nitris )had to tear their engines down to get them refinished properly. __________________ 93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada 1) Build it 2) Race it 3) Break it 4) Repeat!!!