frankmarroquin

iTrader: (31)

OK now is time it is the real deal. I finally got some 243's but what else am I gonna need to bolt them up? I have the Head Gaskets, and head bolts... Will I need different Pushrods? Also would these heads hurt my motor and is anyone running a set up like mine?

Pharcyde50

iTrader: (11)

I had my 243's worked on for the bigger bore of the 6L. Pushrods should be the same but I would check them just to be sure.

frankmarroquin

iTrader: (31)

Cool, maybe that's why the "Kidney" on the heads are shaved a little bit wider. Will I feel the difference performance wise from the 317 heads to 243's?

caviness

iTrader: (14)

i would have them milled if i didnt do anything elese,raise that cr up,and if you can get a 5 angle valve job and a little bowl work if you can afford it if not get them milled atleast

frankmarroquin

iTrader: (31)

Well on the LQ9 the Cr is aready gonna jump from 10:1 to 11:1 if I am not mistaken....

caviness

iTrader: (14)

might want to check your math on that one,i would shoot for 11.5 or 11.7 somewhere in that range help bring that bottom end up

frankmarroquin

iTrader: (31)

Well that's just what I have read around but can someone plz chime in... I wouldnt want to hurt the motor. and CALINESS would that Cr be bad?

Pharcyde50

iTrader: (11)

I left my cr near 11-1. My car is a daily driver and din't want to get too crazy with the cr.

caviness

iTrader: (14)

im at 11.3 now only because i had my heads cut for different cam then changed cam wanted 11.5 to 11.8 should have cut them sum more,it all about the cam. you can run 11.6 pretty easy with a good tune,its the dcr you got to worry about, ask patrick g he will tell ya or just search for sum scr and dcr info and you will learn alot.