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Ummm... isn't the adjuster screw on the pushrod end of the rocker?  If so, as long as there is enough adjustment in the screw to compensate for the removed material, the rocker geometry should stay exactly the same.

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I have already accounted for this in a conversation with Delta.

I had a torque grind applied to my cam, which takes approx .030" off the cam lobe.

In my removing .030" off my head/block surface, I have minimal adjustments to be made to my valvetrain ;)

My biggest monster is going to be the intake. Which may be getting cut down to fit with some custom piping, or I may just make a custom manifold.

 

But thank you for the reminder :)

Also, on break in, I already have break in oil in mind. I'll be switching to Schaffer's once Its all broken in and happy.

 

Twitch

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no ned to oval the inlet to head holes, unless you have an oval hole drill :) - just a larger diameter round drill bit in each hole both ends, makes a big difference

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no ned to oval the inlet to head holes, unless you have an oval hole drill :) - just a larger diameter round drill bit in each hole both ends, makes a big difference

I'm going to oval them with a same sized drill bit as the hole, just grinding out the side that needs more space. That way I only have one plane to worry about when remounting rather than multiple.

 

Twitch

 

PS: Or I may just build a custom intake using my old manifold.

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The dealer said is same piston for ea71 and ea81 all ea71 all ea81s ex turbo cars a'm rebiulding a ea 81 for airplane and when resarching pistons this is what we were told by dealer. I oppted for the 94 ea82 pistons as they have the strongest ring lands. And reliability is key.

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hey twitch I have an EA71 engine I am trying to get rid of.If you still need pistions I could pull it apart and pull the pistons+rings for $50 for all four pistons.

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hey twitch I have an EA71 engine I am trying to get rid of.If you still need pistions I could pull it apart and pull the pistons+rings for $50 for all four pistons.

 

MIles? Condition? Known problems with the engine (eg: overheating, burning oil, etc)?

 

Twitch

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Unfortunately I don't know anything about them.The engine was in the back of a vehicle I bought.I had the heads off because I was going to change the headgaskets and run it but while it was apart I managed to loose about 1/2 the bolts/nuts/and pushrods,I suppose that is what I get for building an engine in my driveway.So I decided just to get an EJ22 and not even worry about the EA71. The bores looked very good when I had the heads.I tilted the engine up on the side and poured a bit of oil into the bores and it seemed to stay on top of the pistons so it shouldn't leak much.

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