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Fitting 1.7 Yella Terra RR onto E7 heads? 

 

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 Post subject: Fitting 1.7 Yella Terra RR onto E7 heads?
Posted: Tue May 29, 2012 5:24 pm 
Getting Side Ways
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Age: 31

Posts: 771

Joined: 20th Nov 2005

Ride: AU XR8 220 Manual

Hi guys,

I have a 185kw EL XR8 with basic exhaust and intake mods as well as an AU MAF with e series electronic and the factory explorer manifold of course.

I got my self a set of yella terra roller rockers (1.7s) that I want to fit. I have sourced a set of taller rocker covers and a 1/2 inch phenolic spacer.

Anything else I need to knwo for the conversion? Any piston to valve clearance issues? Will the factory push rods be ok?

Will they bolt to the E7s without modification? What gains shoudl I expect?

Thanks!!
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 Post subject: Re: Fitting 1.7 Yella Terra RR onto E7 heads?
Posted: Tue May 29, 2012 5:42 pm 
Getting Side Ways
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Age: 41

Posts: 4629

Joined: 23rd Nov 2006

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Ride: 5.0 AU's and 5.0 Maverick

Power: 139 rwkw

Location: Sydney West
NSW, Australia

Not worth the effort of fitting them while you are still running E7's.
Get some GT40P's at a minimum and then fit them up.
Not point getting higher lift on the cam when the heads simply cannot flow the air.

 

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