I would like to build a D16Z6 with an outcome of 10.5:1 to 10.7:1 compression. I know If use the A6 piston, mill the head and block .020 and use a 2 layer gasket I can achieve this. I would like to achieve this by not milling the block as it is not required and by doing a std .005 mill on the head for flatness. I was thinking about the PM3 or P03 piston, but understand I may not be able to do this because the PM3/PO3 has a higher deck height than the flush P28 (D16Z6) piston. When using the calculator (http://www.knology.net/~jediklc/D.htm) I'm unsure what to input into the deck height field for the PM3.

I have read that the height difference is minimal and the additional height would be taken up by the head gasket. I'm unsure if valve clearance would be an issue and again what I would end up for compression.

I do not want to get into the 11.0:1 + which the PG6B's would produce.

 

is this going to be a all motor..motor

 

yes all motor

 

bump

help plz.

 

just use a6 pistons and a 2 layer hg. After that you shouldnt even need to mill the head to get roughly a 10.7:1 compression.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phatrick2332 &raquo;</TD></TR><TR><TD CLASS="quote">just use a6 pistons and a 2 layer hg. After that you shouldnt even need to mill the head to get roughly a 10.7:1 compression.</TD></TR></TABLE>


when using a z6 block and a z6 head with a6 pm6 pistons and a y8 (2 layer) head gasket it will only come out to 10.2:1 compression.

see http://www.knology.net/~jediklc/D.htm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by c0nspire &raquo;</TD></TR><TR><TD CLASS="quote"> with an outcome of 10.5:1 to 10.7:1 compression</TD></TR></TABLE>

D16 block, PM6 pistons, Z6 head, Y8 3-layer HG, 0.020" (total) milled/decked = 10.43:1 CR
D16 block, PM6 pistons, Z6 head, Y8 2-layer HG, 0.020" (total) milled/decked = 10.74:1 CR