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EF/EL Cylinder head on to AU bottom end 

 

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 Post subject: EF/EL Cylinder head on to AU bottom end
Posted: Fri Jan 12, 2018 7:56 pm 
Getting Side Ways
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I know it's been asked with people going the other way, but I'll be getting my hands on a stock AU engine soon, question is, will there be any issues fitting an EF/EL Tickford head and cam to it, or am I better off going the AU Tickford head? What about an egas head?

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 Post subject: Re: EF/EL Cylinder head on to AU bottom end
Posted: Fri Jan 12, 2018 8:09 pm 
Getting Side Ways
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The AU block with the EF head is the combination Jim Mock suggested...
Quote:
The EF/EL head uses nice large ports and runners and improved combustion chamber design. Be aware, however, some ELs were released with hybrid engines using an AU-spec small-port head.

By far, the best head is that fitted to the EF/early EL. "The EF head makes good power in standard form and, when you decide to go further, they’re easier to port," says Jim.

 

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 Post subject: Re: EF/EL Cylinder head on to AU bottom end
Posted: Fri Jan 12, 2018 9:07 pm 
Getting Side Ways
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Location: Melbourne
VIC, Australia

Shortshift wrote:
The AU block with the EF head is the combination Jim Mock suggested...
Quote:
The EF/EL head uses nice large ports and runners and improved combustion chamber design. Be aware, however, some ELs were released with hybrid engines using an AU-spec small-port head.

By far, the best head is that fitted to the EF/early EL. "The EF head makes good power in standard form and, when you decide to go further, they’re easier to port," says Jim.



That's good to know, I am getting a standard AU motor shortly, and I have a reco EF/early EL "94AB" head here, but I may try to find a Tickford head.
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