Sounds like yer looking for mileage as much as power. That can make a difference. Stay w/ *moderate* lift & duration #'s and no less than a 114 LSA. Say, .560/.560 220/220 @ 114.

Reliability?: Ported oil pump, double roller timing chain, Comp R lifters, ATI Super Damper. Double-coil valvesprings.

If you have "excessive" oil consumption, it could be going out in a lot of different places. Rings, seals, gaskets. Upper end is cheaper to fix than lower...

Suggestion: Sounds like you need a daily driver/beater as least as much as you want to improve the WS6. For about $2k, you can find reliable, dependable, economical transpo that may actually be a benefit to your insurance rates and your fuel consumption. I have a Merc Tracer that gets me around 95% of the time. 35mpg. Who cares about door-dings and rockchips in that thing?

 

Hey Gang first let me say that this site is awsome Very helpful I have an `01 WS6 that is almost out of warrantee (not that that has done me any good) and im ready to build the engine correctly now I have been experiencing oil consumption and excessive valvetrain noise-its alot louder than any other one ive heard I picked up a set of the #702 heads off a 5.3L they are bare and ready for mods just figured id bounce it off of you guys and get some input The car is a daily driver and I do alot of cross country commuting so reliability is a must Thanks

<small>[ June 09, 2002, 12:30 PM: Message edited by: XLR8VRL ]</small>

 

Hey there thanx for the info its a 6-M car and im getting right at 30mpg on the hiway id like to add about 125hp with head/cam swap double roller and a ported pump sound good the car is gfoing into pontiac tomm to check for a bent pushrod - my buddy was driving the car and missed a gear bigtime got all up in the rev-limiter hope pontiac can satisfy me for once

 

I would start from the bottom up of the car.But if your not then start at the front of the motor and work your way back.