1991 Grand Marquis Camshaft Recommendation

[merc91]

Ive had the explorer, HO, and comp xe258 in mine and its worth the extra bucks to get the comp. The explorer and ho cams are trying to be great cams but just seem to be dogs with low or high end power, with 1.7rr at least. The comp xe258 gets allot more air in them cylinderes, lots of tq...over 300ftlbs from 2200-5500rpm, and a flat hp curve that tapers off around 5500rpm also. Factory smooth ide. Just make sure you give it a very good valvetrain with its high lift and short durations fast ramp rates. Its also a great cam for nitrous and power adders if one finds himself getting sucked into that power addiction.

[packman]

If you have the money, custom cam and non-stock torque converter. The torque converter will make a HUGE difference, and with even a mild converter (2000-2500 stall, still great for a daily driver) the mild lack of torque in the bottom end with the HO won't be an issue. The F-150 cam is absolute junk for spinning the engine anywhere past 3500-4000.

This definitely^^^^^^

And get the GT40 stuff like mrltd said. All of this should be affordable and make decent power.



Packman