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Anyone using HS rockers on Indy EZ heads

Posted By: Stanton

Anyone using HS rockers on Indy EZ heads - 05/10/11 12:31 AM

Just wondering how well they mate up to the valve tip.
Posted By: ChrgrCuda

Re: Anyone using HS rockers on Indy EZ heads - 05/10/11 12:33 AM

Checked mine out on the geometry, looked like everything was in order....
Posted By: CompWedgeEngines

Re: Anyone using HS rockers on Indy EZ heads - 05/10/11 01:17 AM

They typically fit very well on STD EZ's, and SR's, Need different for big EZ. Otherwise they are a good rocker for the EZ family.
Posted By: Big Wedge

Re: Anyone using HS rockers on Indy EZ heads - 05/10/11 04:47 AM

My machinist added lash caps to get a better sweep of the roller tip. Here is the first picture. These are 1.5 ratio Harland Sharps.

Gart

Attached picture 6625842-IM001650.JPG
Posted By: Big Wedge

Re: Anyone using HS rockers on Indy EZ heads - 05/10/11 04:48 AM

Here is the second picture.

Garth

Attached picture 6625844-IM001651.JPG
Posted By: Plumcrazyracing

Re: Anyone using HS rockers on Indy EZ heads - 05/10/11 04:53 AM

Stanton- The Harland Sharps fit very well on the EZ's as far as alignment with the valve stem. I have the CnC'd 295's. However, I did have to have the pushrod holes in the head opened up to clear the pushrod (1.5 ratio) with a .620 lift cam and 3/8 pushrod. I think I would have been okay had I went with offset Intake rockers. The pushrods rubbed the intake runner. They did not bind but definately made solid contact with the runner. When I had the holes opened up the porosity in the casting allowed oil to seep through the intake runner. I ended up using silicon to embed the aluminum and have not had any problems. Food for thought! I was very impressed with the HS rockers!

Steve
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