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| OzECruisers General Discussions E/N/D vehicles General Discussion ONLY. NO TECH THREADS |
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18-11-2005, 07:44 PM
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Starter Motor
Join Date: Mar 2005
Posts: 5
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just picked up another eb2 this time a wagon and it goes like the clappers would leave my old farmont for dead, after checking it out found that it has a 3.9 head on a 4.0 block. Has anyone heard about this making any differance
thanks |
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18-11-2005, 08:16 PM
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Donating Member
 
Join Date: Aug 2005
Location: St John's Park NSW
Posts: 1,454
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The only thing I know about the difference is that 4.0 litres usually have different Hydraulic Lifters and there is a difference in the size of the Water jacket ports?
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19-11-2005, 12:09 AM
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likes falcon's
Join Date: Jan 2005
Location: Melbourne
Posts: 6,091
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4litre head slightly better designed or something, everything eseries is interchangable motor wise, but ppl usually go for an Update, not a downgrade :P
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www.carhubsales.com.au |
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19-11-2005, 01:25 AM
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Shoot.
Join Date: Jan 2005
Location: Melbourne
Posts: 4,909
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Maybe the head isn't stock or it has an aftermarket cam.... Even shorter diff gears?? Maybe something is wrong with your car?
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20V Turbo |
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19-11-2005, 01:50 AM
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Windsor Man!
Join Date: Jan 2005
Location: Not under the bonnet!
Posts: 2,048
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Quote:
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Wife's car - BA XT Wagon - Lowm shiney wheels, dark tint, no bottom half of front bar, faded paint :/ My Car - 93 Diesel Lux - not as fast but more reliable than her falcon! |
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19-11-2005, 02:54 AM
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Banned
Join Date: Mar 2005
Posts: 1,705
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Quote:
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19-11-2005, 01:52 PM
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PM me if you want
Join Date: Dec 2004
Location: Pk Ranger Modding - QLD 👍
Posts: 7,498
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A 3.9L head will increase compression for sure, but as to wether this will overcome the swirl of the EA head in regards to possible performance gain is yet to be said.
I am running an EA 3.9L head on the EF bottom end going into my car, so will see what the dyno says sooner then later.
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Owner of first ever car to retrofit BA SSS - the EA2BA Send me a PM if you want to know anything 2010 Ford Ranger PK High Rider (Auto) - 2011 Ford Fiesta (Auto)
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19-11-2005, 02:36 PM
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#8 | ||
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FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Melbourne
Posts: 1,382
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yup the compression will be higher. This is because the chambers on a EA head are smaller in volume due to a little metal 'divider' between the valves. This was removed on later model heads. I doubt very much that it would make that much of a difference to the performance. Maybe the motor's just in good nick!
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19-11-2005, 03:09 PM
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Starter Motor
Join Date: Mar 2005
Posts: 5
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Thanks everyone for the advice, I like most would not do a downgrade but will see if there is any probs with this in the longrun
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3.9 head on a 4.0
Linear Mode
