PDA

View Full Version : Cylinder Head Work


mongoswede
06-02-2010, 08:46 PM
I am cleaning up a 8:1 head to put on my 109 which currently has the 7:1 head. I will do a 3 angle valve job and general cleanup while its out. Also Plan on checking for warp etc. What is the max amount of material that can come off the combustion side of the head if I have to deck it?
SafeAirOne
06-02-2010, 09:29 PM
See Terri Ann's FAQs:

http://www.expeditionlandrover.info/landRoverFAQ/FAQ_head.htm
SafeAirOne
06-02-2010, 10:15 PM
See Terri Ann's FAQs:

http://www.expeditionlandrover.info/landRoverFAQ/FAQ_head.htm


EDIT: After re-reading your post, I'm not sure Terri Ann's FAQ will fully answer your question...
mongoswede
06-02-2010, 11:35 PM
EDIT: After re-reading your post, I'm not sure Terri Ann's FAQ will fully answer your question...

actually I found some useful info on that part of her site that I must have missed before:

"According to Pat Young, if an 8:1 head has not been cut before, 0.020 in. is close to raising the compression from 8:1 to 9:1"

.020" is probably a good amount to use as a max.