Are there differences between intake and exhaust rocker arms on 97 Lumina 3.1


Asked by Aug 12, 2015 at 10:54 PM about the 1997 Chevrolet Lumina 4 Dr STD Sedan

Question type: Maintenance & Repair

My g'daughters boy friend tore my car down to replace head and intake gaskets. He mixed up the ball rockers and rocker arms when he took them off. I had him hand me one pushrod at a time and I put then into order of removal in holes in a cardboard. He simply threw all the pushrods and ball rockers into a box. As there was some pitting on the heads I took them to a machine shop to be planed, valves, etc reconditioned.

When he put it back together there was a couple of lifters that were not pumping up.
As we ended that day he left, supposedly to come back the next day. That was two months ago, and he has ignored my calls. I would have done the job myself except my surgery to place two Titanium implants in my spine to replace two vertebrae have not been allowing me to do heavy work, twisting, or bending.

I finally also found that he had dropped a pushrod into the valley. I had to remove the intake again to retrieve the pushrod. I then put the engine back into order enough to start it to check the lifters. The car will not start with the rocker arm bolts tightened to specs. If I loosen some the car will run, but not right, of course.

Now, since he mixed up the rocker arms and the ball rockers I want to know if there is a difference in the intake rockers from those of exhaust rockers. IF there is a difference I need to find out which is which. IF there is no difference, then he must have put the pushrods in wrong.

I need a little guidance here.

3 Answers


In some cars you have one push road longer than the other ones. Right now I don't remember wish one. The lifter have a calibration you can't thighs to much.


In the 3.1 the intake pushrods are 5 3/4 inches long and the exhaust pushrods are 6 inches long. The problem is that always one should also keep the rocker arms so that they can go back on the same valves that they came off. This wasn't done here. The rocker arms and the ball rockers were all just thrown in a box. Not only did the rockers not get back on their respective valves, but the ball rockers did not go back on with the rocker arms they came from. The ball rockers looked to all be the same dimensions, as do the rocker arms, but I am not sure if the rocker arms are the same for the intake valves as they are for the exhaust. The angles of the valves are all different and not aligned the same, so is there any difference in the dimensions of the intake and exhaust rocker arms? Unlike the days of old when all the valves in a head were all in a straight alignment, these things mount in some weird angles for each cylinder.


The robbers were all the same

Your Answer

Add photo

Related Questions


Looking for a Used Lumina in your area?

CarGurus has 271 nationwide Lumina listings and the tools to find you a great deal.


Search Chevrolet Lumina Questions

Chevrolet Lumina Experts

#1 90V6RedHotLuminaEuro
Reputation 1,130
#2 Justin Hatfield
Justin Hatfield
Reputation 1,100
#3 John Saffrahn
John Saffrahn
Reputation 1,020
View All

Related Models For Sale

Used Chevrolet Impala"
938 Great Deals out of 35,697 listings starting at $1,500
Used Chevrolet Malibu"
1,151 Great Deals out of 73,044 listings starting at $695
Used Chevrolet Monte Carlo"
12 Great Deals out of 2,062 listings starting at $2,000
Used Buick Park Avenue"
612 listings starting at $5,995
Used Chevrolet Camaro"
799 Great Deals out of 38,852 listings starting at $2,650
Used Chevrolet Tahoe"
1,076 Great Deals out of 36,075 listings starting at $1,700
Used Buick Century"
1,269 listings starting at $3,295
Used Chevrolet Caprice"
204 listings starting at $10,900
Used Toyota Camry"
1,608 Great Deals out of 98,371 listings starting at $895
Used BMW 3 Series"
1,615 Great Deals out of 39,618 listings starting at $888
Used Buick LeSabre"
19 Great Deals out of 2,612 listings starting at $1,950