Single exhaust port EA63?

[Kostamojen]

I just saw this on E-bay, and i'm thinking of picking it up as a backup engine for my FF-1 especially since its so cheap...

 

http://cgi.ebay.com/ebaymotors/Subaru-EA63-Long-Block-1400cc_W0QQcmdZViewItemQQcategoryZ33615QQihZ019QQitemZ290216451194QQrdZ1QQsspagenameZWDVW#ebayphotohosting

 

From what it looks like, it is an EA63 (note the coolant crossover with the hose, indicates its an EA61/62/63) but it doesn't have the dual-port exhausts...

 

Its from Japan, so i'm assuming its some mish-mash model engine thats not too common here. Any ideas?

[The Beast I Drive]

Maybe an EA63 with EA71 heads? is that even possible?

[Subieguy]

Looks like the EA-63 that was in my 76 DL sedan.

[Kostamojen]

Looks like the EA-63 that was in my 76 DL sedan.

Yours had single port exhaust?

[kiwi subbie]

cool i would get it if i could

[Leeroy]

According to the final 1400 & 1600 factory parts catalogue (February 1980) I have, the 1400 EA63 had wet cylinder liners and dual exhaust ports until engine # 914673. From # 914674 the EA63 was like the EA71 - single exhaust port (per head) and dry cylinder liners.

 

This change happened sometime in 1975, so I would assume all EA63s produced after this time would have have the single exhaust ports.

[Kostamojen]

According to the final 1400 & 1600 factory parts catalogue (February 1980) I have, the 1400 EA63 had wet cylinder liners and dual exhaust ports until engine # 914673. From # 914674 the EA63 was like the EA71 - single exhaust port (per head) and dry cylinder liners.

 

This change happened sometime in 1975, so I woujld assume all EA63s produced after this time would have have the single exhaust ports.

So thats a dry block? Oh man, i'm definitely buying it then!

 

I might be able to use the dual port heads with it

[Kostamojen]

Does this later EA63 require a wider intake manifold?

[Subieguy]

If you need one I have the one off my 76 DL.

[Kostamojen]

I do have an EA63 intake manifold, but i'm not sure if this dry-sleeve, single port exhaust version has the wider block...

[Kostamojen]

Alright, strange question...

 

Which heads are best?

 

EA61 heads

EA63 4port heads

EA63 2port heads

 

And which heads have to use which cam, or can all 3 use any of the 3 cams?

[Leeroy]

The two versions of the EA63 have completely different cams. The exhaust valves are on the outside for the dual port heads and on the inside for the single port versions.

 

Not sure which heads are better but I have a 'Wheels' car magazine from December 1975 that states the following differences for the 1975 EA63 single port engine (refers to the dual carburettor models which the US did not get);

 

Compression ratio changed from 9.0 to 1 to 10.00 to 1

Power remained the same at 67kw (92bhp) but was developed at 6400rpm instead of 6800rpm

Torque also stayed the same at 107.8Nm (79.3 lb/ft) but was developed at 4800rpm instead of 4000rpm.

 

Hmmm... From all that it appears the ealier dual port motor had more torque down low and was 'peakier' at the top of the rev range as well!?!

[moosens]

Had both,should still have both 2 and 4 port 1400's. Wrote about it in the past. Not sure if anyone searched or if it'll even show up.

 

You'll find that the two port 1400 which several board members insisted did not exist,was adapted for the 1975 4WD wagon in the US. At least that's where mine came from.

 

Cheers

[Leeroy]

After reading all my Factory Parts Catalogues it appears there a three versions of the EA63 (not including the different states of tune!);

 

From 1972 to 1975 they had dual ports and wet cylinder liners.

 

In 1975 there was a change to single exhaust ports but still with the wet liners.

 

During 1976 and after engine # 914674 the EA63 had single exhaust ports and changed to dry cylinder liners like the EA71.

[Kostamojen]

The two versions of the EA63 have completely different cams. The exhaust valves are on the outside for the dual port heads and on the inside for the single port versions.

 

Not sure which heads are better but I have a 'Wheels' car magazine from December 1975 that states the following differences for the 1975 EA63 single port engine (refers to the dual carburettor models which the US did not get);

 

Compression ratio changed from 9.0 to 1 to 10.00 to 1

Power remained the same at 67kw (92bhp) but was developed at 6400rpm instead of 6800rpm

Torque also stayed the same at 107.8Nm (79.3 lb/ft) but was developed at 4800rpm instead of 4000rpm.

 

Hmmm... From all that it appears the ealier dual port motor had more torque down low and was 'peakier' at the top of the rev range as well!?!

Hmm, 10.0/1 compression ratio? Sounds good. But that lack of power increase is odd... I only have the "early" 1300/1400 FSM, so I should probably pick up the later 1400 engine section FSM too for more detail.

 

Anyway, what i'm thinking is:

 

Dry sleeved EA63 block

4port heads (EA61 heavily ported, or EA63)

Custom Cam (whichever one I need to use)

EA63 intake manifold (that I already have)

After reading all my Factory Parts Catalogues it appears there a three versions of the EA63 (not including the different states of tune!);

 

From 1972 to 1975 they had dual ports and wet cylinder liners.

 

In 1975 there was a change to single exhaust ports but still with the wet liners.

 

During 1976 and after engine # 914674 the EA63 had single exhaust ports and changed to dry cylinder liners like the EA71.

I'm hoping its the later 1976+ dry sleeve motor... If not, its still a good backup motor.

Had both,should still have both 2 and 4 port 1400's. Wrote about it in the past. Not sure if anyone searched or if it'll even show up.

 

You'll find that the two port 1400 which several board members insisted did not exist,was adapted for the 1975 4WD wagon in the US. At least that's where mine came from.

 

Cheers

I actually read that 1400 thread again, thats where I started getting curious about the different head configurations and cam configuration, it was mentioned that cams/valve location might be different on the later 1400's but wasn't confirmed.

[Kostamojen]

The block # is 699821, so i'm fairly certain it isn't dry sleeved (very similar casting to the EA61 actually)

 

However, most of the gaskets are new on the motor so its basically already rebuilt and ready to go.

[Kostamojen]

Oh and here is the motor, I posted in my FF-1 thread but ill post these here too:

 

 

I'm fairly certain this is a wet-sleeve block... I saw the other reman EA63 they are auctioning on Ebay right now, and that was a 8xx,xxx engine code, so I presume it was a wet-sleeve as well.