RE>>Cams 10/29/98
I have a limited number of NOS Rootes cams that carry the stock part number. I would be willing to sell the 1600 cam for $150 and the 1725 cam for $175. I could provide the part number and the casting numbers if that would help.
Tom
--------------------------------------
Date: 10/29/98 1:06 PM
To: T Wiencek
From: Jarrid Gross (Yorba Linda, CA)
----------
From: Phyrman5(at)aol.com
>I just called Sunbeam Specialties and they have cams again, for the 1725
reg.
>and Holbay grind. Just shell out $145 for each!!! Hey Jarrid, what is the
>difference in the grinds?
>BAD
Well, there is some good news and some bad news.
The good news is he has cams. He's been out of everything for years
now.
The bad news is twofold.
1) rumor is that these are late 1725 chrysler cams, and dont have the
same specs as SV cams do. Dan Walters calls them Series VII cams
which I believe to be for the smog equipped hunters.
2) The "Holbay" grind is magic, and no one seems to know what
the holbay grind really is. People who have "holbay" cams all
seem to have somewhat different grinds, which leads one to ask
the question, what are the true specs on this cam. Factory H120
specs suggest that this cam could not be ground from a factory
1725 cam shaft, this because the lobe centers are way different
and the holbay cam has a bunch of advance. Holbay sold the
H120 cam, which had its own casting number on it, and an E128
tornado regrind. The E128 was supposedly the hotter cam, which
is a hotted over stock cam.
No techie I have ever spoken with can explain how such an
oddball set of specs on the H120 cam works the way it does.
It appears that the specs are deliberately hosed to hide a non-
standard lobe profile, that Holbay probably wanted to keep
proprietary.
Good luck on the holbay cams, I hope Holbay ground them, becuase
using the specs suppied in the H120 factory manual, nobody else can.
Jarrid Gross
This archive was generated by hypermail 2b30 : Tue Sep 05 2000 - 10:19:57 CDT