Any of you guys swap rockers?

Hey1bum · July 30, 2003, 10:56:52 AM

What ones did you use and what was the ratio on them?

1trucavalier · July 30, 2003, 12:00:03 PM

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.

Chris A · July 30, 2003, 05:46:06 PM

Quote from: 1trucavalierI put them on my 2.2L cav which is the same as the 3.1L.

:?: :?: :?: :?:

HUH?

The Burning Rom · July 30, 2003, 07:00:16 PM

Quote from: Chris A
Quote from: 1trucavalierI put them on my 2.2L cav which is the same as the 3.1L.

:?: :?: :?: :?:

HUH?

I second that :? :?: :?:

Do you maybe mean 2.8L? :wink:

1trucavalier · July 31, 2003, 12:41:53 PM

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.

maddux31 · July 31, 2003, 08:31:53 PM

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??

TurboGTU · July 31, 2003, 10:25:59 PM

Now thinking of it...isn't stock ratio 1:6?

1trucavalier · August 01, 2003, 07:48:46 AM

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!

GPChief · August 01, 2003, 09:49:49 AM

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.

Hey1bum · August 01, 2003, 10:46:30 AM

damn that J-body forum is pretty sweet.