i did a search and all i can find are the seat to seat specs on the stock 5.0 roller cam. I have a 91 roller motor and would like to know the @.050 duration specs for the stock cam. Anybody know?
"Offically"...210/210 @.050" for the original 85-late 88 cam and 206/210 @.050" for the revised late 88 and on cam.
In reality these specs are all over the place,some have more some have less duration and different cylinders can show different readings on the same cam.
Inaccurate machining/grinding and cheap cam cores are to blame I guess.
"Offically"...210/210 @.050" for the original 85-late 88 cam and 206/210 @.050" for the revised late 88 and on cam.
In reality these specs are all over the place,some have more some have less duration and different cylinders can show different readings on the same cam.
Inaccurate machining/grinding and cheap cam cores are to blame I guess.
As he was saying, the only way to really know is to measure the specs. Ford's QC was pretty relaxed with respect to lift's and durations. But what he said is pretty much correct. OEM cams are made as cheap as possible so QC is not what it could be.