Lookin" sweet Anthony!!!

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Ok i know almost nothing about engines and am learning alot from this thread and of course the interwebs. What does switching out these rockers and waht not do? is it actually a performance enchancer on its own or just to tolerate the stresses of a future turbo? im asking cause im currently N/A and like to know how my car runs and waht exactly is going on inside that magic firebox i call an engine.

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All sho no go...

Nothing to it remember!!!cake walk

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Rockers are like a cam, but with out the hassle of ripping open the stock cam. Oh and they are roller rockers so they reduce the stress on the valve-train too

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Why have more money than brains? Cuz RACE CAR

Rockers increase valve lift, more valve lift = more air, more air = more power

even at 1.95 rockers are only about as good as a VS Cam, but even then Cam still cost too much for the gain and on a FWD car not worth it. SO Rockers are by far the better choice.

-- Sat Aug 07, 2010 6:09 pm --

With his heads and the 1mm valve oversizing he should get a huge gain up top with those rockers. You should easily see over 200whp IMO.

Where did you find the 1.95 rockers?

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04 American Supercharged and 01 Turbo Swede
Why drive a car, when you can pilot a Saab

Pinx; a slice of sudz

ZZP...

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Why have more money than brains? Cuz RACE CAR

Sorry for the no updates. There had been bad weather.. Rain and couldn't work on the car

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Why have more money than brains? Cuz RACE CAR

well I finally put the engine back together I test ran the engine first without coolant to see if there was any problems and nothing. Later on I poured in the coolant and let it idle and still nothing. I was running low on gas to I took a trip to the gas station near by. When into wot 2 times and GOD I felt the power! Filled her up and while I was heading back I got a REALLY bad rumble in the engine. NOOOOOO!!! So it back to drawing board again and this time I'm really checking everything.

I think it's either I didn't torque the rocker arms good enough or oil and coolant are mixing
I'm going to drain the coolant and test it again and is if it really is a coolant leak


oh and that wire I didn't know where it went does go to the starter.. at least I did figure that out.

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Why have more money than brains? Cuz RACE CAR

Well I finally got her started up and running!! I killed my stock lifters on the first fire up and got comp lifters from ZZP. I'm definitely loving the extra HP!!!

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Why have more money than brains? Cuz RACE CAR

Congrats man!

That Turbo is gonna make that bitch fly LOL

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04 American Supercharged and 01 Turbo Swede
Why drive a car, when you can pilot a Saab

Pinx; a slice of sudz

Here is the worst of the stock lifters... This is why you gotta torque everything down to spec!






Here is what it's gotta look like...

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Why have more money than brains? Cuz RACE CAR

How's the cam?

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2005 GT owner [Non S/C] with a "big DIC".
Two years later and I still love the car.
Thanks Pontiac...Bleen is keen!

I looked inside the lifter holes and just saw minor damage. Just a couple of scraches on it. I was a little worried I could have flattened a lobe, but the car is running very smoothly now, thank god!

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Why have more money than brains? Cuz RACE CAR

Glad to hear man! I need to get a set of rockers on my GTP and open her up a bit to breathe.

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Mods include-
Pulley boys 3.2 pulley, 20* timing, HPTuned, pacesetters, SSIC, modded 1.9's, F/R STBs on Don Rome brackets, 255lph pump, ZZP billet rails, GXP catback
Best of 13.4 at 103.... 12's this year

rockers are like medium easy to deal with.. alternator, tensioner, and front engine mount bracket need to be removed... maybe the S/C too, but you could work around it- it's just make things earlier I guess.

Remember that the tensioner has coolant lines going threw it. It's also a great time to get a replacement tensioner and coolant elbows- they tend to break. Mine were on the just about to give in and broke easy when I removed them. Also it's a nice time to flush coolant too.

here is a video I used has a reference...



Now if you toque them down too much, the engine will not fire up due to lack of compression and if you don't tighten it up enough you get flattened lifters and maybe a badly damaged cam (I got lucky and got away with just lifters)

Our firing order is 1-6-5-4-3-2

back of the engine 2-4-6
front of the engine 1-3-5

I recommend getting some engine assembly lube too.

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Why have more money than brains? Cuz RACE CAR

Oh believe me I know lol. My last W-body was a N/A Impala. Built that motor up with a GT1 cam and all the goodies.

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Mods include-
Pulley boys 3.2 pulley, 20* timing, HPTuned, pacesetters, SSIC, modded 1.9's, F/R STBs on Don Rome brackets, 255lph pump, ZZP billet rails, GXP catback
Best of 13.4 at 103.... 12's this year

Congrats on getting it finished successfully. You plan on getting some 1/4 mile comparisons?

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04 GTT - Retired
Best ET 13.016
Best Trap 115.56 MPH

I can have 1/8 soon, but 1/4 will take a while due to the track being almost next to Orlando.

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Why have more money than brains? Cuz RACE CAR

Does doing a change to new rockers that open wider on a n/a result in more hp?

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All sho no go...

Yup.. It's basically a cam bro

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Why have more money than brains? Cuz RACE CAR

So ur saying a cam that lifts more could be droped in with stock lifters and it would work? How much horse power are we talking. Sry to clutter your thread here but im always looking for something new to do to my car.

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All sho no go...

Where did you get that pointiac fuse box cover? Is that just a stick on or is it a whole new cover?

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http://www.cardomain.com/ride/3882088

Yep, if you going for a cam it is recommended to stay 1.6 ratio ( stock ) or 1.7 ratio depending on your mods. If no cam then 1.9 on SC or 1.84 on NA and you will be set.

NOTE: Depending on the mileage of the car if you do a cam it is recommended on the high mileage cars to replace the rods and rockers due to wear points from the previous cam.

Malefic_GP - Excellent work!, made it easier from my cam and rocker install next month.

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2004 Grand Prix GT AGGRESSOR
PRJ PCM, Custom Exhaust, 180 stat, FWI Custom Intake, DIC upgrade.

1.84 on N/A? I got 1.95 and running sweet

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Why have more money than brains? Cuz RACE CAR

Finally I have been curious about this - factory springs, retainers, and rods?

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2004 Grand Prix GT AGGRESSOR
PRJ PCM, Custom Exhaust, 180 stat, FWI Custom Intake, DIC upgrade.