What ones did you use and what was the ratio on them?
1.6 adjustables from crane. If you go to any good muscle car shop they will have the rr's, lifters, springs etc... I put them on my 2.2L cav which is the same as the 3.1L.
Quote from: 1trucavalierI put them on my 2.2L cav which is the same as the 3.1L.
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HUH?
Quote from: Chris AQuote from: 1trucavalierI put them on my 2.2L cav which is the same as the 3.1L.
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HUH?
I second that :? :?: :?:
Do you maybe mean 2.8L? :wink:
95-97 2.2L cav/sunfire/beretta etc have the same rr's as the 3.1L. When you ask for them you ask for a 3.1L, if you have a 2.2L 4 cyl you also have to ask for a 3.1L parts minus lifters of course. The stock is 1.5rr I purchased the 1.6 adjustable. Going from 1.5 to 1.6 made my car feel like a ohc. It revved higher faster and smoother. They were rollers of course relieving some of the friction. Go to cranes site they should have 3.1L listing now since so many J-bodies have had there heads done.
I've got my heads off right now, should I replace my lifters and rockers with the crane items listed above to gain a little performance. Do i torque the rockers to the same spec as the originals. Also, does the oil orifice in the lifter have to point in any certain direction?? I assume that the lifters spin freely once the engine is rotating so the orifices don't matter?? Was the part # 25759--12 (12 being the amount needed I believe)??? Did they come with the studs??
Now thinking of it...isn't stock ratio 1:6?
http://www.j-body.org/members/colin/cars/1/ LOOK! They are 1.52. He's got hella 3.1L mods so get some coffee!
Am getting the Cranes (1:60) put on at this very time, there is a write up on puttign the 1:60 rockers on one of the Oldsmobile pages. The only change is getting GEN I rocker arm studs - they are adustible, the GEN II are not.
damn that J-body forum is pretty sweet.