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head shaving 


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 Post subject: head shaving
Posted: Tue Jan 04, 2005 12:55 am 
Stock as a Rock
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Age: 29

Posts: 154

Joined: 10th Dec 2004

Gallery: 8 images

Ride: 2004 BA XR6T

Location: PERTH
WA, Australia

how much recomended to shave of head 30 thou?? and how much of a power gain??



04 BA XR6t auto
93 eb falcon

Posted: Tue Jan 04, 2005 10:34 am 
Site Admin
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Age: 35

Posts: 8832

Joined: 18th Dec 2002

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Power: 270 rwkw

Location: Sydney
NSW, Australia

Close to bugger all to gain unless you're doing it along with lots of other mods.



WAG363: AUII LTD Supercharged 363 Dart Stroker [Supercharged 363 LTD Build]
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Posted: Tue Jan 04, 2005 5:13 pm 
Getting Side Ways
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Age: 31

Posts: 2280

Joined: 5th Nov 2004

Ride: EF Falcon 95

Location: Rosebud
VIC, Australia

on the topic of head work, will a port and polish give any noticable gains? apart from the LSD and chip im getting put in sometime soon Im stuck on ideas for a few more mods for my 6 without going all out.

Is their any more things I can do for more power (around the $1000 mark) without putting on race heads and expensive stuff like that, i was thinking oversized valves and a vernier timing gear but i cant see that giving me a big gain...



Cougar Zero makes my pants fit nice.

Posted: Tue Jan 04, 2005 9:14 pm 
Getting Side Ways

Posts: 6449

Joined: 11th Nov 2004

just shave it until it's flat. or you could end up with to much compression.
and you can't put it back on after you shave it.

you probably won't notice much power at all. unless your engine is worn and the compression is down. but then shaving the head to get it back will only add the stresses on the aleady worn rings and wear them out faster.

if you're building an engine that needs more compression you should do it with high comp pistons to save your head on case you ever need to shave it again. if you go to far you have nothing left if you need it. then you be up for a new head and more porting to get it like the old one.

but if you have to ask. i take it the above is not the case.

start with other things first it will be cheaper and you'll get more gain




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