Join Date: Jan 2015
Location: SW Wisconsin
oldeerslayer is online now
Re: Computer friendly camshafts
I'm not a big fan of re-using camshafts. They are pretty much matched for life to their lifters. It's the reason you do a break in sequence on a rebuilt or new engine. The newer engines with roller lifters don't require the extended break in procedure because the cam and lifters don't need to be worn in.
Regarding the restrictiveness of the cam and manifolds on a stock 2.8, I don't think you'll gain 10 hp. After all it is the smallest engine GM put in a 4x4. HP is a top end thing, torque is what gets a 4wd vehicle moving. Granted a towing type cam can ad a bit of torque, but cubic inches, especially stroke are where it truly comes from.
I've been plowing for 50 years and heat is a major problem because the truck never gets any air flow. Just working very hard at low speed. Plow trucks used regularly require a lot of maintenance.