hi i bought a type r cylinder head from city-speed.com. the head i got back says pr3-4. now i always thought the itr p/n started with p73. does anyone know where this head comes from?

 

You most likely have an ITR head. Its made from the same casting as the b16 heads, ie. pr3-4. The p73 markings are for other parts, like rods, crank, pistons and the such. Is the head bare or does it include cams and valve springs?

 

i bought it bare. thx for the info. i just read that the b16a/b and b18c5 are made from the same casting.

 

P73 is GSR..

PR3 is B16
I have a PR3-4 head too... BUMP.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSVTEC 91 Civic &raquo;</TD></TR><TR><TD CLASS="quote">P73 is GSR..

PR3 is B16
I have a PR3-4 head too... BUMP.</TD></TR></TABLE>

Pr3 is b16
p72 is gsr
p73 is itr

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eda6 hb &raquo;</TD></TR><TR><TD CLASS="quote">Pr3 is b16
p72 is gsr
p73 is itr</TD></TR></TABLE>

this is correct. p73 is NOT gsr.