Hi 8'ers, can't find my 1 of 7 spiral bound pocket book with the
info(including which marque) in it but:manifold 1
Y
1349520
prim. 1.306(1.308-1.318)
sec. 1.532
was from 215 'K' engine...Buick i think but i also marked it Type
'S'.....for a particular comp. ratio.
manifold 2
Y
581830X
prim. 1.433-.435
sec. 1.687
marked type 'K' i think an Oldsmobile
----- Original Message -----
From: "David Kernberger" <dkern@napanet.net>
To: <mgb-v8@autox.team.net>; <buick-rover-v8@autox.team.net>
Sent: Friday, July 09, 2004 1:28 PM
Subject: Re: GM 4 bbl intakes
> 7/9/04 OOps!! Forgot to delete the tailings, so here it comes again.
Dave K.
>
> 7/8/04
>
> Larry and the lists,
>
> I had always assumed that all BOP 4-barrel intake manifolds were
> the same--obviousoly not so!! I checked the 3 I have already removed from
> engines:
>
> 1) Casting number 1349520 / diameters are about as you specified.
>
> 2) Casting number 581830X / diameters are about as you specified.
>
> 3) No casting numbers or other marks / diameters about same as 581830X.
>
> 4) 2 more still on engines with carburetors mounted and in cars, 1
> '61 Olds F-85 and 1 '62 Olds F-85 / Both are number 581830X / Of course
> cannot see bore size but no reason to suspect any different from others of
> same casting number.
>
> 5) My original 1964 Oldsmobile factory parts book shows part number
> 581830 is for 1961 and 1962 4-barrel carb F-85 / 1963 4-barrel carb calls
> for part number 381575 (bore diameters unknown).
>
> 6) My conclusion is that 1349520 is probably Buick version, though
> don't know what year application.
>
> Hope this doesn't muddy the waters too much.
>
> Cheers,
> David Kernberger
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