Bolt-on Full Roller Rocker for Gen III

[geoffinbc]

On a regrind you may want to go slightly stiffer than stock. A regrind isn't going to be amazingly different than a stock cam.

I wouldn't expect a reground cam to come with spring recommendations.

[Froggx]

On a regrind you may want to go slightly stiffer than stock. A regrind isn't going to be amazingly different than a stock cam.

I wouldn't expect a reground cam to come with spring recommendations.

You're right, I keep forgetting the Gen 1 and 2 motors have aftermarket cams

[GinoBeats]

My 25759-12 set should be in any day now, checked again and it comes with the M10-3/8 studs so i'll be ok. I'm going to drill and tap the heads for the M10's anyways

[geoffinbc]

Yes they come with studs. You might consider buying the ARP 8mm to 3/8" studs to save the hastle of drilling and tapping. If you don't drill and tap absoutley perfect you will fuck up the heads. Unless you are experienced in doing the process I would avoid it.

I hope you have a giude block for the tap :P

[GinoBeats]

Its no problem at all

[91BerettaGT]

Sorry to bring an old thread alive again...

I was just thinking, There's mentioning of requirement of Guideplates for using the 1.6:1 Ratio Gold race rockers (the ones you need to clearence the upper lower intake gasket for)

My Intake Manifold has guide plates, do i cut off the gasket's guide plates and use my 2.8 Guide plates? Or just scrap the 2.8 guide plates and use the Intake manifold's guide plates.?

In that picture on the first page, is that the only required clearancing spots?

[geoffinbc]

You must cut the gasket guides off. They are not sufficient for guiding the pushrod. They are only there to hold the pushrod during maintainence. Cut the guides and install your 2.8L metal pushrod guideplates.

[GinoBeats]

Yeah i've got the Gen II guideplates only because I have lots of heads lying around otherwise I would of ordered the early Gen II guides. But yeah everything seems to be ok, i've got '04 heads being an '04 engine so I ended ordering up the M8-3/8" studs from Comp. As well as their LS1 springs, running 25759-12 crane set and the rest is chromoly, I'll have to post up some pictures soon

[AaronGTR]

The things on the intake manifold gaskets aren't guide plates. They are just there to hold the pushrods during installation, and maybe to make the gasket stronger. You need the metal ones that actually bolt to the head under the rocker studs. Gen2 or early gen3 heads had them. You will need to cut or sand down the back side of the gasket where it comes close to the new guide plates so the gasket will sit flat. I just sanded them with a dremel and got enough clearance.

[GinoBeats]

Just finishing up checking and adjusting the valvetrain geometry I didn't want to start another post but basically a few situations here as my crane 25759-12 rocker arm set does touch the valve cover. Would you say, take a small amount of material off the rocker arms to prevent the contact, or create spacer plates for the valve covers to increase the height, or somehow modify the depth of the baffle inside the valve cover, i.e, machine some material down so that the battle sits down 'further'. Other than this there are no other issues. Oh yeah the bolt holes in the guide plates are larger for those like myself running with '03 and up engines with the M8 studs hehe

[GinoBeats]

Actually we have worked away around it, I'll post pictures up next week

[EspanolaGuitarista]

Double up on the valve cover gaskets, with some gasket sealer. They won't leak, gino. It shouldn't be a big deal.