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ISKY RR550 Magnum Cam

Engine tech, for those engines, products, and technologies of yesteryear.

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Dave at OldSchool
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ISKY RR550 Magnum Cam

Post by Dave at OldSchool »

.. anyone have application & specs for an ISKY RR550 Cam it's in a 327 sbc geardrive USRRC CanAm roadracer
PackardV8
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Re: ISKY RR550 Magnum Cam

Post 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.
Jack Vines
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Obsolete Engineering
6.50camaro
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Re: ISKY RR550 Magnum Cam

Post 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
BillK
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Re: ISKY RR550 Magnum Cam

Post by BillK »

Why dont you call them and ask. I would bet you dinner that they will know the answer.

(310) 217-9232
Bill Koustenis
Advanced Automotive Machine
Waldorf Md

www.enginerepairshop.com
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