Tony,
The holbay setup in an alpine can use any 1725 block.
The Hunter 1725 block has side motor mounts, so you cant use early alpine 1725
blocks
in a hunter, but you can use hunter 1725 (or alpine blocks) in an alpine.
HTH
Jarrid Gross
-----Original Message-----
>From: Tony Somebody <achd73@yahoo.com>
>Sent: Feb 3, 2010 1:12 PM
>To: Alpine List <alpines@autox.team.net>, Beamclub <tigers@autox.team.net>
>Subject: [Alpines] Holbay engine help
>
>As some members know I have both Tigers and Alpines I have been attempting to
>build a better than stock 1725 for my S5 w/ OD My first setback was the
>machine shop some how lost a beautiful head I had spent lots of time porting
>then paid a pro to finish up- soon I decided I would like to have a Holbay
>engine and had made friends with a chap in the UK who had bought a Holbay
>head, intake and headers several years back and was willing to sell them to me
>for what he paid- what a great person this gentleman is but upon searching his
>workshop the parts where missing It seems his neighborhood has changed over
>the years and what used to be left unlocked is now in need of alarms as crime
>is up in the UK too- long story short he had been burglarized but wasnt aware
>his Beam parts had also been removed. He is an older gent and says he has so
>many bits he may never know what all was taken. Next I met a guy selling
>Holbay items on epay and although I wasnt able to
> get the head, he has another Holbay engine. I have help in getting the
>smaller parts to the USA but I dont think the block is one that can be
>brought. I need to know if the Holbay uses the same 1725 as the stock block. I
>know it uses a different head and of course the cam isnt the same or even the
>intake and it uses flat head pistons to raise compression. There is prolly an
>American flat head piston that would work BUT thats a guess and wishful
>thinking ANY information on the similarities or the differences between the
>Holbay and the stock 1725 know to our members would be appreciated.Feel free
>to contact me off list
>Thanks in advance
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