At 11:29 AM 1/7/2006, emanteno@comcast.net wrote:
>Friends,
>
>Someone in my local club recently purchased a street TR3 in need of
>restoration. While disassembling the engine, he discovered that the cam
>was marked "Isky TR666". I thought that the 666 cam was a racing cam from
>the 60's. Is my recollection correct? This TR3 is a street car. Is this an
>appropriate cam for street use?
>
>THANKS for any and all info.
>
>Irv Korey
Irv,
I just installed an Isky 777 in my TR4. The 666 specs are:
cam lift 0.298
valve lift 0.435
duration 286
0.050 duration 250
lash 0.018 (h)
I can send you the timing info if you need it.
I have no experience with the 666 grind, but the 777 grind "comes on the
cam" at 3500 like a ton of bricks and screams to at least 6000. It doesn't
idle below 1100 and has mediocre low end torque. The 777 is a streetable
cam, so I expect the 666 to be even better for street use.
hth
Jim
--
Jim Hassall
Blacksburg VA
jhassall@blacksburg.net
'63 TR4 in autox preparation - 90% finished, 90% to go
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