EA dual port heads

velocityboy · Post by **velocityboy** » Fri Mar 08, 2013 6:57 am

I have never seen a pic like that, that shows the exhasut ports, very nice. That would make sense, I couldn't understand why you would go to the trouble of producing those heads and not changing the exhaust ports, but they obviously did.
Unfortunatley the EJ in a car would just be too easy and cheap compared to SUB4 heads. I was talking to a friend just yesterday who is into ultralight aeroplanes and surprisingly he said a modified ea81 is a prefered option for them because of it weight over an EJ.

PS has anyone got a pic of EA81S heads?

steptoe · Post by **steptoe** » Fri Mar 08, 2013 7:07 am

Look up silverbullet he should have put some up - emphasis on should have - think we are all waiting for their introduction if I am not mistaken

Post by **TOONGA** » Fri Mar 08, 2013 7:37 am

Twin carb heads you say ... what about a rebuild thread on a twin carb motor?

http://www.ultimatesubaru.org/forum/top ... -81-build/

Noice pikturs .... mmmmmmmm its soooo puurrrrty

I wish I still had my wagon

TOONGA

PS it isn't very in depth on the rebuild part but it does have head pictures

Venom · Post by **Venom** » Fri Mar 08, 2013 7:46 am

There is a thread on another subaru forum that this guy had detailing his brumby build. It's probably linked on here somewhere...

nncoolg · Post by **nncoolg** » Fri Mar 08, 2013 5:53 pm

You could always do this:
from the top it would look like the safari motor...

nncoolg · Post by **nncoolg** » Fri Mar 08, 2013 6:54 pm

Found some pictures of OE dual carb heads too...

Willy Fisterbottom · Post by **Willy Fisterbottom** » Wed Mar 05, 2014 6:29 am

I got a quote on the Flygas Heads:

We offer you a head die-cast alloy “G All Si 9” fully machined, with seats valves installed and guides installed .
Eight valves (4 inlet and 4 exhaust) and N° 8 upper valves spring retainer .
Eight holes for spark-plugs M12 mm X 1,5mm
Injector holes drilled at 14mm (or your choice)
Volume combustion chamber 40cc (plus/menus 1,5%)
Without springs (you can use original).
Without cotters key (you can use original) . Weight 4,1Kg (plus/menus 4%)

•The budget cost for One pair of Cylinder Heads is ……………...…….1840Euro (920 Each)

•Your Prices if you buy one pair of Cylinder head is …………………..1760 Euro (880 Each)

•If you buy Two pair of Cylinder head became …….…………….…….1580Euro (790 Each)

steptoe · Post by **steptoe** » Wed Mar 05, 2014 7:25 am

which is where most say an EJ will be cheaper..... the SUB4 heads with roller rockers from the NZ company were similar out of reach price for road going econoboxes like ours

Willy Fisterbottom · Post by **Willy Fisterbottom** » Wed Mar 05, 2014 7:47 am

Yep, not cheap but I am considering these heads. I've done EJ conversions and want to do something different.

nncoolg · Post by **nncoolg** » Wed Mar 05, 2014 7:52 am

That seems like a really good price I reckon.
All the head work done - seats in, guides in, you'd just have to lap the valves and assemble them! And steptoe if the sub4 heads are similarly priced that's even better, I thought someone said they were around ten thousand dollars a pair?

Willy Fisterbottom · Post by **Willy Fisterbottom** » Wed Mar 05, 2014 8:28 am

I thought the price was reasonable too. What I gather was $10000 was for a complete running SUB4 engine, looks like SUB4 may have gone out of business as no links to their site work. I've been looking on aviation sites for used Subaru aero engines but have only found an EJ20 setup for $6000 US and a EA82T in Australia for about $3000.

Post by **Bantum** » Wed Mar 05, 2014 11:59 am

Another engine I will have to add to the list ...

showthread.php?t=22606&page=4

Will try to find some more info on this SUB4 as well ...

Add : Found this : http://www.ultralightnews.com/sunfun2000/sub4.htm

Cheers, Bantum ...