Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

ea81 carb on a ea71?

  • Please log in to reply
3 replies to this topic

#1 the sucker king

the sucker king

    great fisherman

  • Members
  • 1,991 posts
  • Lyons, Colorado

Posted 14 June 2004 - 11:03 PM

any issues with this? they look pretty similar. are the barrels the same size are they all 28/30?

#2 GeneralDisorder


    Elite Master of the Subaru

  • Members
  • 22,064 posts
  • Portland

Posted 14 June 2004 - 11:09 PM

I had a 78 with an 82 carb on it, and it ran fine, so I don't think there are any real issues. You might consider swapping the jets from the EA71 carb into the EA81 carb. Depending on the EA71 you have, you might even be able to swap the whole manifold. The later EA71's (fat case, hydro lifters, EA81 bell-houseing) had the same manifold length as the EA81.

Oh - and you might need to use the throttle linkage from the EA71 carb too...


#3 Caboobaroo


    USMB Drunk

  • Members
  • 7,157 posts
  • Oregon City

Posted 15 June 2004 - 05:54 PM

yeah I just put a newer carb on my 78 Brat and the throttle linkage hit the intake manifold. Also the cable mounts differently but that should be fixed when you change the throttle linkage

#4 PoorManzImpreza


    Subaru Nut

  • Members
  • 546 posts

Posted 15 June 2004 - 08:12 PM

as an owner of a late model ea71 (1989) I am wondering what ea81 manifold bolted to it...ea71 manifolds are shorter than ea81 manifolds lol what you might have been thinking is ea82 carbed/spfi and ea81 as they swap quite well and have been the basis of a couple spfi ea81 and a turbo spfi ea81...

now the late model (post 1985) ea71s may have had the same carb bolt pattern as ea81/82 carbs but I dunno for sure I'll find out soon enough when my 'new' ea82 engine replaces my good old ea71...

as for the jets I'd leave the ea81/2 jets in place...

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users