Thread: 3/4 cam:fact or fiction?

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here's my theory on the "3/4 race cam"....

A relatively hot street cam has somewhere in the ballpark of 270 degrees duration....maybe more, maybe less (depends who you ask)...anyways,

...the "3/4 race cam" has 3/4 of 360 degrees duration (adv) = 270 degrees

Just something I thought about...makes sense to me...but then again, I wasn't around when the mysterious grind hit the market.

Originally Posted by 65cayne

here's my theory on the "3/4 race cam"....

A relatively hot street cam has somewhere in the ballpark of 270 degrees duration....maybe more, maybe less (depends who you ask)...anyways,

...the "3/4 race cam" has 3/4 of 360 degrees duration (adv) = 270 degrees

Just something I thought about...makes sense to me...but then again, I wasn't around when the mysterious grind hit the market.

Strangely enough, that math seems to work (kind of). Cran's largest cam for a 454 Chevy is advertised at 360* (exhaust only).

Having been there back in the day, though, 3/4 race meant nothing more than something quite a bit hotter than stock, but still driveable on the street.