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ISKY RR550 Magnum Cam
Posted: Mon Nov 21, 2022 8:01 pm
by Dave at OldSchool
.. anyone have application & specs for an ISKY RR550 Cam it's in a 327 sbc geardrive USRRC CanAm roadracer
Re: ISKY RR550 Magnum Cam
Posted: Mon Nov 21, 2022 8:23 pm
by PackardV8
Dave at OldSchool wrote: ↑Mon Nov 21, 2022 8:01 pm
.. anyone have application & specs for an ISKY RR550 Cam it's in a 327 sbc geardrive USRRC CanAm roadracer
Dave, back in the day, the catalog said:
Iskenderian RR550 - Timing supplied with cam
FWIW, that was the mid-level roller; there was an RR7000.
Re: ISKY RR550 Magnum Cam
Posted: Tue Nov 22, 2022 4:30 pm
by 6.50camaro
Don't know if this helps but, from a 1970 Isky catalog they list a 550 grind number as having .540 lift valve timing In 57-93 Ex 93-57 330 degree duration .030 lash. those timing numbers give it a 108 LSA . they define type as Super LeGerra in the back of the catalog they list this as 1/4 mile drag, smooth action allowing over 8000 rpm, supercharged or N/A. Dan
Re: ISKY RR550 Magnum Cam
Posted: Wed Nov 23, 2022 12:53 pm
by BillK
Why dont you call them and ask. I would bet you dinner that they will know the answer.
(310) 217-9232
Re: ISKY RR550 Magnum Cam
Posted: Sat May 27, 2023 9:20 am
by smclendon
I ran one in 1967 in a 1955 Chevrolet C/MP with a 327. Over a Crane 308 roller it was about 2mph. faster. I am sure Isky can give you the information.
Re: ISKY RR550 Magnum Cam
Posted: Sun May 28, 2023 3:28 am
by Geoff2
There were a lot of 'RR' category cams. The numbers usually referred to the valve lift.