L100 vs. 1007-LD cam specs. ??

sidevalve8ba

sidevalve8ba

Well-known member
I have read a lot lately on the Ford Barn about the L100 camshaft. I am glad to see that KiWinUS has stepped up and made this cam available once again. I have also seen references to the Isky 1007-LD cam. I recently found an old Isky catalog of mine from the 70's and looked up the specs. on the 1007 cam. My questions are what are the specs. on the L100 cam and who was the original grinder of that cam? I tried the search feature but came up empty.

Thanks to anyone for help on this.
 
The L100 has these timing events- IN opens @ 15° BTDC, closes @ 51° ABDC and EX opens @ 55° BBDC and closes 3° ATDC. Advertised duration is IN 270°, 246°@ .050 and 260°, 238° @ .050. Lift @ lobes is .375 and lash is .016 IN and EX.
Literio was the first grinder and I suppose the designer, and then Cam Techniques bought the masters and now they are owned by KiwinUS, a member here. KiwinUS got in touch with a grinder who produces the 3rd generation cams.
 
Thanks Fordors.. all correct info other than these are "advertised " numbers of the original grind. However when we checked some original L100 cams we found these specs to be "advertised " only. All are very close except the lift numbers are .005 off for what ever reason . There were some other numbers a little off when we put this cam back in circulation & we were able to correct these to make a very nice cam .
I also have the master to grind the "Isky 1007LD" for anyone that wants it along with a few others .
Cheers
Tony
 
There were three 1007 cams, The 1007, 1007B and the 1007LD. I wouldn't use the LD on the street as it's low end is poor. I was told these cams were made for 1/2 mile tracks or longer. Another cam that we haven't looked at is the Howard F-9. I preferred this to any other cam, before the L-110 came out.
 
KiWinUS said:
There were some other numbers a little off when we put this cam back in circulation & we were able to correct these to make a very nice cam .

Cheers
Tony
Click to expand...

Hi Tony. I remember when the L100 cam discussion first started years ago that Cam Techniques had "cleaned up" the cam with maybe a computer program. Now that there are differences in the original numbers and what you found in the cam, I wonder if some of the difference is the result of the "clean up"? I'm not positive, but I think Ol' Ron had had a lot of conversation with Dave DeGenerous and was the one who told about the cam clean-up.
 
In case anyone is interested the advertised specs. on the 1007-LD Isky cam per their 1978 catalog is as follows: Intake events - 22-67, Exhaust 65-24, lift - .370, valve lash hot .010 intake and .012 exhaust. Duration is 269 degrees.

It is interesting that the valve lash settings on all the flatheads were hot. Who sets flathead valves when they are hot?

The 1007-LD was the only 1007 cam listed in this particular catalog.
 
The L-100 was originally developed, ground and sold by the Litterio Brothers, Julius and Caesar, out of their shop in Providence RI. It was developed primarily for the stock cars of the day in the '40s & 50's. They were cam grinders of choice for the early New England circle track racers. The brothers were very innovative and made overhead valve conversion for the flathead also. When they closed the business, Dave bought the original masters, from which he made his own masters for his cam grinding machine which I believe he said was a CNC.
 
Dave worked for Crane cams back in the day when the OHV engine were turning Higher and higher revs and the valve spring pressure was going out of sight. He told me they developed a program that would Smooth out the profile to reduce the spring pressure without affecting the theoretical profile. Pete would probably be able to shead more light on it than I. When he bought a new cam grinder, he sent the master for his cams including the l-100 to the manufacture and they converted them to the new grinder which included the computer program to smooth out the profil to use lower spring pressure. I spent some time with Dave a few years back and was very impressed with hid knowledge. Not sure if I have everything right here, cause my brain is getting kinda fuzzy lately.
 
Re post of L-100 specs.

For some tat might have missed this.

.Dave worked for Crane cams back in the day when the OHV engine were turning Higher and higher revs and the valve spring pressure was going out of sight. He told me they developed a program that would Smooth out the profile to reduce the spring pressure without affecting the theoretical profile. Pete would probably be able to shead more light on it than I. When he bought a new cam grinder, he sent the master for his cams including the l-100 to the manufacture and they converted them to the new grinder which included the computer program to smooth out the profil to use lower spring pressure. I spent some time with Dave a few years back and was very impressed with hid knowledge. Not sure if I have everything right here, cause my brain is getting kinda fuzzy lately.
 
WOW some great info here guys !!!
Thanks so much !!!!
Cheers
Tony
ps. send them cams to me for all that want the "Famous " KiWi-L100 cam
 
This forum has also been very interesting for me . The Isky 1007LD specs I have from our master vary some & it looks like a great cam to me but as yet have not run one . I do have one fresh ground that I do intend putting in an engine at some time in the future . The specs I have are In-26*x72* @.050 12*x56*lift .377 lash .015
Ex-26*x66* @.050 10*x54*lift .375 lash .015
Cheers
Tony
 
Holy cow!! Those are some EXTREMELY radical specs. That thing would not pull a greased ***** out of a lard barrel till RPM is way up.

Edit: Oh, I see the specs and the @ .050 don't align. So, it is probably a usable cam.
 
JWL said:
Holy cow!! Those are some EXTREMELY radical specs. That thing would not pull a greased ***** out of a lard barrel till RPM is way up.

Edit: Oh, I see the specs and the @ .050 don't align. So, it is probably a usable cam.
Click to expand...

yep JWL I had it all lined up correctly & then when I submitted it it got way off , I then tried to edit it & it did the same .
sorry.
 
Ol' Ron said:
There were three 1007 cams, The 1007, 1007B and the 1007LD. I wouldn't use the LD on the street as it's low end is poor. I was told these cams were made for 1/2 mile tracks or longer. Another cam that we haven't looked at is the Howard F-9. I preferred this to any other cam, before the L-110 came out.
Click to expand...

Ron, what about the Isky 1007 track?? Any info on those?? Thanks
 
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