has any one used this 2021 cam .i have a 91 f150 with a 302 sd efi.will this cam lope at all with is 109 lobe sepration i compaired it with my stock cam and they looked the same .if any has used this cam let me know how it worked out .thanks and merry xmas

 

Lobe separation doesn't tell you anything about how rough the idle will be (lope). Look at the specs on these two wildly different cams....

Duration 252/252
Lift 433/433
Lobe Separation 110

Duration 294/306
Lift 554/558
Lobe Separation 110

The first cam will run a smooth, stock-like idle in a 302. But the second, well, it will lope its damn a$$ off! But, if you noticed, the lobe separation is the same.

So why don't you post the rest of the specs? Crane's site seems down right now or I would look it up myself.

 

Hydraulic flat tappet
Basic Operating RPM Range: 1,000-4,000 RPM
Intake Duration at 050 inch Lift: 190
Exhaust Duration at 050 inch Lift: 198
Duration at 050 inch Lift: 190 int./198 exh.
Advertised Intake Duration: 252
Advertised Exhaust Duration: 260
Advertised Duration: 252 int./260 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.416 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.432 in.
Valve Lift with Factory Rocker Arm Ratio: 0.416 int./0.432 exh. lift
Lobe Separation (degrees): 109
thanks bro.

 

Looks like it would have a very smooth idle. It might have a slight, very slight, hint of roughness due to the longer exh duration, but you probably couldn't tell it wasn't a stock cam.

 

what do u think it will do for power will it be a lot better than stock.

 

does an y one know

 

That cam is much tamer than a stock 5.0 HO (Mustang) Cam.

BTW doesnt the 1991 5.0 EFI have a Hydraulic Roller Cam? I know they went to the Roller Style Block in 1989 but cant remember when they changed the truck cams.