ea 71 twin carbs on ea 81
ea 71 twin carbs on ea 81
Hi, I am pretty new to subarus. I have recently been offered twin carbs from an ea71 to put on my 81. As far as I can tell, these are a direct bolt on. However, I have also been oferred a pair of heads that to me are from an unknown model. They apparently have different cams (lift and duration) and the heads have been worked. The only clue to their origin (the heads) is that the exhaust and intake cams are on opposite sides to the ea81. At least this is what I am told.
Does anyone know if this rings true or possibly know what heads these may be?
I would appreciate any help or suggestions.
Thanks.
Does anyone know if this rings true or possibly know what heads these may be?
I would appreciate any help or suggestions.
Thanks.
- littlewhiteute
- Junior Member
- Posts: 623
- Joined: Sat Sep 30, 2006 7:22 am
- Location: Brisbane
Manifold won't fit, EA71 is narrower port to port (from one head to the other) than EA81.arc1 wrote:Hi, I am pretty new to subarus. I have recently been offered twin carbs from an ea71 to put on my 81. As far as I can tell, these are a direct bolt on. However, I have also been oferred a pair of heads that to me are from an unknown model. They apparently have different cams (lift and duration) and the heads have been worked. The only clue to their origin (the heads) is that the exhaust and intake cams are on opposite sides to the ea81. At least this is what I am told.
Does anyone know if this rings true or possibly know what heads these may be?
I would appreciate any help or suggestions.
Thanks.
Normally aspirated heads have in,ex,ex,in.
EA81T and dual port heads have ex,in,in,ex.
Regards
Gary
Gary
- littlewhiteute
- Junior Member
- Posts: 623
- Joined: Sat Sep 30, 2006 7:22 am
- Location: Brisbane
- littlewhiteute
- Junior Member
- Posts: 623
- Joined: Sat Sep 30, 2006 7:22 am
- Location: Brisbane
Cams? Are we talking EA82 SOHC, not EA81 OHV?arc1 wrote:The cams are provided with the heads. Do I bolt these on with the standard block and pistons? My research tells me that these are the rally heads and I assume that higher compression pistons may have been used with these. Any comments?? Thanks.
Regards
Gary
Gary
- littlewhiteute
- Junior Member
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- Joined: Sat Sep 30, 2006 7:22 am
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