hemi grind in a wedge?

[RD]

i have often heard of individuals taking a hemi cam grind and placing it in their wedge motors, but do not understand why this would be an advantage...

anyone care to provide input on this?  just curious, do not plan on doing it unless there are distinct advantages and it will also be dependent on where and how those advantages are most efficient (i.e. street or strip or full time strip, etc.)

[John_Kunkel]

The original Purple Shaft cams were Street Hemi grinds on BB and SB cams, I think they just picked the Street Hemi grind because the 284°__.474" profile was similar to many aftermarket cams of the time.

Pretty much old school, there's a lot better out there now.

[RD]

what about the current hemi grinds that show more lift on intake rather than exhaust?  could these be an advantage in a wedge, if so, why and if not, why not?  thanks.

[Rolling_Thunder]

An actual Hemi camshaft will not work in a wedge motor....      The timing tit on a RB or B block lines up on the #1 lobe i believe while the Hemi shaft it lines up with lobe #3...        You can get a hemi grind put on a RB cam blank -

To answer your question - There are much better cams out there today...     

[Chryco Psycho]

the wedge head is set up E_I_I_E_E_I_I_E
the hemi head is set up E_I_E_I_E_I_E_I
so the intake & exhaust lobes reverse on every second cylinder , no wedge will run right with a Hemi cam in it
the Old Hemi grind cams used the hemi lift & duration & overlap but were ground for wedge engines , I have to agree far better cams exist now

[RD]

so now you see... i dont know hemis for shit...

thanks for the edubacation 

[dkn1997]

The original Purple Shaft cams were Street Hemi grinds on BB and SB cams, I think they just picked the Street Hemi grind because the 284°__.474" profile was similar to many aftermarket cams of the time.

Pretty much old school, there's a lot better out there now.

I took the advice of an old time mopar guy and I run this cam in my 440.  There are better choices, but it's still a good cam. I ran a 13.094 @105 in the 1/4 with it.

This was the combo at the time:

.030 over 440
srp lightweight pistons, 10:1 comp
stock rods
stock stroke forged steel crank
'71 block
346 heads with the bigger valves.  short turns and bowls blended, but nowhere near a full port job, not even gasket matched.
auto with 3000 stall converter and kit
3.55 suregrip, really tall hoosier quick times
stock rear "318" springs, 40 years old.
performer rpm
eddy 750 carb
mp electronic igintion conversion kit w/orange box.

I did basically no tuning that day, only popped the hood to check fluids and had over a 2 second 60 foot.  with a little traction, this cam would have gotten me in the 12's easy with really a "not much more than stock" type build on the motor.  this was all in a 68 charger.

[max]

as mentioned there are alot better cams on the market these days.

that's the first cam i ever wiped a lobe on in the 20+ years i have been messing with mopar engines and it wiped out after only a couple of hours of run time