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drazull
Fordmods - Getting Side Ways
Age:25
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Location: Adelaide SA, Australia
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 Posted: Mon Jan 17, 2005 1:42 pm Post subject: Looking for some good head... |
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Long story short I need a new cylinder head.
Therefore I would also like one which will pump up the kilowatts. Right now the car is stock as a rock so its got to be compatable with the stock setup but also be good for any future mods, (read: exhaust system and cam).
Calling around ITS Performance will do me a port and polished head for between 1400 - 1600. The Mocks can do a mail order changeover for 1950, whilst calling round the local places gets anywhere between 1200 and 2500.
Jim Mock said there was a 'streetfighter' head done on changeover for (IIRC) $ 950, and has 85% of the port and polish work there racing head has. Seems like the best bang for the buck so far.
Opinions? Comments? Advice? |
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drazull
Fordmods - Getting Side Ways
Age:25
Posts: 780
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Location: Adelaide SA, Australia
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| Posted: Mon Jan 17, 2005 11:02 pm Post subject: |
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true true I have heard good things about ITS.
Are head gaskets rubber/copper/alumin etc... under what scenario's would a metal one be used.
Also, oversized exhaust valves are they part of the head (or connected to it). What do they do? |
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bowsaw
Fordmods - Getting Side Ways
Age:43
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| Posted: Tue Jan 18, 2005 12:07 am Post subject: |
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| Oversized ex valves( XR6 heads, in ef/l anyway, are 2mm bigger than stock) helps drag that old charge out a bit quicker, and help pull in a new charge, a bit better than smaller valves. |
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creeture3
Fordmods Tyre Shredder
Posts: 343
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Location: melbourne VIC, Australia
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| Posted: Tue Jan 18, 2005 7:44 am Post subject: |
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| Larger valves more effective @ high revs, smaller valves give more low down torque. It's all about flow rates an' stuff. |
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drazull
Fordmods - Getting Side Ways
Age:25
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Location: Adelaide SA, Australia
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| Posted: Tue Jan 18, 2005 9:47 am Post subject: |
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Ahh right, so the biggest exhaust valves are not nessacerily the best.
Are they part of the head ie: part of the port and polish job? |
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Disco Frank
Fordmods Junkie
Age:29
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| Posted: Tue Jan 18, 2005 11:53 am Post subject: |
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| drazull wrote: | Ahh right, so the biggest exhaust valves are not nessacerily the best.
Are they part of the head ie: part of the port and polish job? |
basically u dont get the "biggest valve" u geta slighly bigger vlave teh increase teh flow etc it can get realll complicated but is basically what bowsaw said.
usually not part of a port/polish as this is where the head ports are increases in size and cleaned up to allow for more flow, u can get the bigger valves fitted at the same time as it wil require modification to the valve seat to allow for the bigger valve and get a 3 angled valve jop! |
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drazull
Fordmods - Getting Side Ways
Age:25
Posts: 780
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| Posted: Tue Jan 18, 2005 12:08 pm Post subject: |
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Ahhh ok. Thanks so far Frank, its not true what they say about you.
Would my XR6 have bigger exhaust valves?
And for a bolt-on bolt-off cylinder head swap would I need to tell the supplier that I have an XR? |
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Andrew J
Fordmods - Getting Side Ways
Age:22
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| Posted: Tue Jan 18, 2005 3:04 pm Post subject: |
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| drazull wrote: | Ahhh ok. Thanks so far Frank, its not true what they say about you.
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Ah, yes it is 
And quoting up to 2500 for a new head is a little rich for me. I got my head replaced with a reconditioned one, which is probably what theyre trying to sell you, for around 1300 fitted. It cracked again (seperate head to original, same fault) and so i got that repaired as well, but got it for free. This head has outlasted the second (which lasted almost three months?) and still seems to be going strong  |
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Disco Frank
Fordmods Junkie
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| Posted: Tue Jan 18, 2005 3:16 pm Post subject: |
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| Andrew J wrote: | | drazull wrote: | Ahhh ok. Thanks so far Frank, its not true what they say about you.
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Ah, yes it is
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OI what do they and who is "they" say about me????
spill it
| drazull wrote: | Would my XR6 have bigger exhaust valves?
And for a bolt-on bolt-off cylinder head swap would I need to tell the supplier that I have an XR? |
yes your xr should have bigger valves not by much though 2mm i think was posted earlier yes tell teh supply you have an XR6 head and since you do i would try and keep it and maybe go buy another stock head from a wrecker thats is rooted and do an exchange that way |
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HJThew
Fordmods - Getting Side Ways
Age:26
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Location: SYD NSW, Australia
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| Posted: Tue Jan 18, 2005 7:41 pm Post subject: |
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| Bugger some of them quotes mate. Have you thought about a stage 2 130 rwkw IT's engine which includes a full engine rebuild? |
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