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vintage speed empi x300 kit question
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Pirulero1986
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Joined: February 18, 2014
Posts: 50
Location: Italy
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PostPosted: Fri May 13, 2016 3:56 am    Post subject: vintage speed empi x300 kit question Reply with quote

i have a question about the engine i hope to build
i have found this catalogue dated 1961

http://www.thesamba.com/vw/archives/lit/61empi_x300.php

what i don't understand is how you could install a 69mm crank instead of the standard 64mm without modify nothing
i mean ... head studs , rods , manifold intake ( engine will be wider?)
thanks for your helpfullness
michele
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Slow 1200
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Joined: July 02, 2004
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PostPosted: Fri May 13, 2016 4:04 am    Post subject: Re: vintage speed empi x300 kit question Reply with quote

My assumption is that the pistons had a different pin height
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pig-pen
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Joined: December 04, 2012
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PostPosted: Fri May 13, 2016 6:29 am    Post subject: Re: vintage speed empi x300 kit question Reply with quote

for my 69.5 crank I sourced 78mm pistons with a shorter compression height, keeping the engine normal width.
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