Rocker Rollers
xeroinfinity
01-23-2006, 07:11 PM
A while back Some Grand AM owners were asking me where I had got my rocker rollers, well I'm still not sure.
But I hav found a set for the V6(3400) at Advance auto. rocker rollers (http://www.partsamerica.com/ProductDetail.aspx?mfrcode=COM&mfrpartnumber=141612&parttype=156&ptset=A)
Their was a picture on the site to go with the ad but as I was doing this thread, the pic wasnt available. They cost $161(which is less than I paid for my set). The ad stated they were for off road use only, ya right !
I did hav clearance issues in the valve covers top, so I had to grind out room for them to fit while rocking :)
Though some of you might hav moded out your GA's with turbos and Super chargers, these would be excellent for that use. Enjoy and Good Hunting!
But I hav found a set for the V6(3400) at Advance auto. rocker rollers (http://www.partsamerica.com/ProductDetail.aspx?mfrcode=COM&mfrpartnumber=141612&parttype=156&ptset=A)
Their was a picture on the site to go with the ad but as I was doing this thread, the pic wasnt available. They cost $161(which is less than I paid for my set). The ad stated they were for off road use only, ya right !
I did hav clearance issues in the valve covers top, so I had to grind out room for them to fit while rocking :)
Though some of you might hav moded out your GA's with turbos and Super chargers, these would be excellent for that use. Enjoy and Good Hunting!
Gir-_-
01-23-2006, 09:11 PM
Competition Cams?
Do explain :D
Do explain :D
xeroinfinity
01-23-2006, 09:44 PM
well Comp Cams would be the Name brand(manufactorer).
The rocker rollers are whats in the valve covers that work the valves up and down. the pushrods are on one end(top) of the rocker and the valve is on the other. the pushrods accuate the lifters pumping oil in the Valvecover to lube them.
And the lifters are driven by the Cam shaft, which is driven by the crank shaft via the timing chain, which all is driven by the pistons, pushed from fuel exploding in the cylinders, that you paid to much for...
...wait, was that to much? :lol:
I thought I had a picture of some rocker rollers but I dont, google didnt either lol
just this (http://images.google.com/images?svnum=10&hl=en&lr=&rls=GGLD%2CGGLD%3A2004-52%2CGGLD%3Aen&q=engine+rocker+rollers)
basicly they are more efficent, lighter and more durable than the stock steal ones. I'll find a pic of both and post it to show the differance.
The rocker rollers are whats in the valve covers that work the valves up and down. the pushrods are on one end(top) of the rocker and the valve is on the other. the pushrods accuate the lifters pumping oil in the Valvecover to lube them.
And the lifters are driven by the Cam shaft, which is driven by the crank shaft via the timing chain, which all is driven by the pistons, pushed from fuel exploding in the cylinders, that you paid to much for...
...wait, was that to much? :lol:
I thought I had a picture of some rocker rollers but I dont, google didnt either lol
just this (http://images.google.com/images?svnum=10&hl=en&lr=&rls=GGLD%2CGGLD%3A2004-52%2CGGLD%3Aen&q=engine+rocker+rollers)
basicly they are more efficent, lighter and more durable than the stock steal ones. I'll find a pic of both and post it to show the differance.
Gir-_-
01-25-2006, 12:04 AM
so basically installing some of these would just make the engine run lighter? When being pushed down on the crank just easier flow .. more accel to the pulley -> belt .. ah yes I feel kinda smart now but do correct me if im wrong lolol
xeroinfinity
01-25-2006, 12:58 PM
Haha! I think you hav the jest of it all. THey are lighter, the rollers help produce Less friction on the pushrods and the valves, so they work more easily=less stress on valve train.
The stock rockers are just cupped out where the pushrods and the valves meet the rockers surfaces, their for rubing the crap out of them and over time wear faster than the roller rockers and require the valve lash to be adjusted more offten(when running the shit out of!)
So in the end theirs less slop, and less chances of them breaking under pressure. And they are an expensive part when you dont get any major HP gains, unless you hav a turbo or SC, that was my plan when I installed these on my engine.
The stock rockers are just cupped out where the pushrods and the valves meet the rockers surfaces, their for rubing the crap out of them and over time wear faster than the roller rockers and require the valve lash to be adjusted more offten(when running the shit out of!)
So in the end theirs less slop, and less chances of them breaking under pressure. And they are an expensive part when you dont get any major HP gains, unless you hav a turbo or SC, that was my plan when I installed these on my engine.
maxwedge
01-25-2006, 01:26 PM
Correct me if I am wrong here but the stock 3.4 rockers are roller in respect to the pivot? The tips are not, correct? Also there are no adjustments available on this engine no matter what kind of rockers are on there, also the lifters would compensate for any wear, it seems to me this is overkill for a stock revving engine and valvetrain.
xeroinfinity
01-25-2006, 02:12 PM
Yes it is!!! :)
on all counts you referd to.
on all counts you referd to.
Gir-_-
01-25-2006, 03:14 PM
Correct me if I am wrong here but the stock 3.4 rockers are roller in respect to the pivot? The tips are not, correct? Also there are no adjustments available on this engine no matter what kind of rockers are on there, also the lifters would compensate for any wear, it seems to me this is overkill for a stock revving engine and valvetrain.
wha?
wha?
gmack221
01-25-2006, 03:43 PM
xeroinfinity have you been running these with no problems? The reason I ask is there are alot of things that need to be considered when doing this kinda swap, I have designed them before. If you are running these with no problems they do help reduce the friction on the top of the valve by a very small amount, if you were to add a roller cam & hydraulic roller lifters with the appropriate pushrods you'd see a more drastic reduction in friction, that is if they are available for your motor. Anyhow if they are designed right to run with the stock pushrod they make your motor more bulletproof, maybe a bit of overkill, but i'd rather go a bit overboard and not be sitting on the side of the road broken down. And like xeroinfinity was saying, he added them to his motor because he had every intention of putting a power adder on it (turbo or super charger). By the way xeroinfinity if you put a power adder on you should make the bottem end of the motor stronger & reduce the compression to make it last, you should run about 8:1 with a power adder, im not sure where the stock 3.4 is at though.
I respect where your all coming from, but if you want these kinda preformance parts build up a 350 chevy for a rear wheel drive machine, its cheaper, less problems getting parts, and for the most part easier, but when you do it put the money into making the bottom end of the motor to make it bullet proof also! thats my 2 cents.
I respect where your all coming from, but if you want these kinda preformance parts build up a 350 chevy for a rear wheel drive machine, its cheaper, less problems getting parts, and for the most part easier, but when you do it put the money into making the bottom end of the motor to make it bullet proof also! thats my 2 cents.
xeroinfinity
01-25-2006, 07:12 PM
I would lik to correct myself, they are individually bolted with a roller and pedestal, and their is lash when you take the rockers off or loosen them. lik when removing the intake or heads.
No problems Gmack221, I just had them hiting the valve covers a little so I cleared that away. And these 3.4s hav roller lifters(down on the cam)that perform very well with carbide pushrods. Squirts oil heller far with the vavle covers off too.
Not alot you can do to strengthen the bottom end on the 3.4. Other than a more balanced crank , lighter rods pistons, and maybe performance bearings(few other little things).
And after all your time and money, you'd still hav a weakass intake, that leaked every other month.
I'm not sure what the compression ratio is , thought its 10:1, but I may be off . I'm also aware of the 8:1, no need to predetonate my motor :)
And wouldnt we all lik a 350 V8 in our cars! Would look nice under the GA's hood :thumbsup:
No problems Gmack221, I just had them hiting the valve covers a little so I cleared that away. And these 3.4s hav roller lifters(down on the cam)that perform very well with carbide pushrods. Squirts oil heller far with the vavle covers off too.
Not alot you can do to strengthen the bottom end on the 3.4. Other than a more balanced crank , lighter rods pistons, and maybe performance bearings(few other little things).
And after all your time and money, you'd still hav a weakass intake, that leaked every other month.
I'm not sure what the compression ratio is , thought its 10:1, but I may be off . I'm also aware of the 8:1, no need to predetonate my motor :)
And wouldnt we all lik a 350 V8 in our cars! Would look nice under the GA's hood :thumbsup:
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