Engine/Transmission (1994 - 1998) Killer Dowl pin cracked the front gear case

[Don Tanklage]

you mean to tell me that not one of you guys knows the specs on a stock cam?



and no one knows the rocker arm ratio either?



wow



hard to believe...

 

[Joseph Donnelly]

12 Valve rocker ratios are 1. 7 intake, 1. 67 exhaust

At . 050” lift, intake durations are around 155-175 deg. for various stock cams

Exhaust durations are around 195-200 deg.

Lobe centers are around 106-110 deg.

 

[Don Tanklage]

holy cow, no wonder you can adj half the valves with out spinning the motor over



155?



never heard of such short duration joe



the advertised number could be less than 180°?



i dont even see how it could work. wouldnt the side of the lifter run into the side of the lobe? are they roller lifters? man, that is short...



thanks