Hello, i have a 1987 ford f150 5.0 EFI. 3.08 gears. i believe it is speed denisty.I want to purchace a camshaft but dont know which one to get with it being computer controlled. Which cam should i get? Is it possible to get one with a nice lopey sound?

 

Here's the problem as I see it.....

1. Comp has by appearance - seems to be a company that has experience more cam lobe failures than most and places the blame on the low ZDDP inthe oils. Is it a factor yes, but I highly suspect that they are also using chinese cam billets & are not parkerizing their cams (Parkerizing is the final step and a crucial step to help break the cam in- a heated acid bath that microscopically etches the metal surface and adds a very thin layer of graphite coating which allows the cam lube to hang onto and penetrate into the cam surface during cam break in).

2. Who actually is the supplier for summit and other similar distributors who have their own cam labels, I don't know and i doubt they will tell you, but knowing summit's pricing structure, I will bet their cam billets are chinese based as well.

3. Considering the cam has such critical importance to the engines performance and life, to me it makes sense to use a cam grinder who will talk with you directly- even modify the cam grind to fit your needs even better and to address the possibility of cam lobe failure with the new oils. With regards to price...the difference is nill- especially considering it's cheap insurance to know exactly who is machining such a critical part for your engine. And remember, advertized lift/duration/lobe separation is just that- advertized and not the specific grind including ramp profile that is used on the cam.

That is why I highly recommend Iskenderian & Crower...both are family owned, been grinding cams for decades, and both will even re-grind your oem cam if possible- saving you even more $.

As you are probably aware, many of the cam mfgs in the past few years either sold, closed their operations to re-open elsewhere (typically with new staff) or .......

In addition to Isky & Crower, I use to very highly recommend....
Sig Erson & Crane...

Both became part of corporate entities, eventually leading to periodic quality issues and closing their doors- I think Crane re-opened, but with a different staff. Typically the staff is very, very young and well- requires a learning curve.

If you do a search on the net, Harvey Crane has posted a little summary of the history of the people who made the cams at Crane, his opinion of what happened and the eventual outcome of several of the staff.

 

No.. lopey idle and SD EFI do not work together. You want an F4TE roller cam from a '94+ truck motor or maybe a 5.0HO cam, and in both these cases you will also need a complete roller assembly(lifters, pushrods, spider, dogbones) from a roller motor to utilize these cams. This should all drop right into your truck motor.

 

They have to make good vacuum for the stock ecu. Especially if they are a SD system. Thats why I would prefer to get a stock grind but apparently they aren’t available for the 92-93 Windsor anymore. There isn’t a lot to choose from.