how to block dod holes?
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So, if I have the LS2 valley cover then I won't have to plug the holes? So the options when putting an LS2 into an LS1 car are either to tap and plug the holes, or just buy the valley cover?
We really need an FAQ for LS1 --> LS2 conversions. I am actually keeping track of this stuff, and I will post it when it resembles completeness.
-Geoff
We really need an FAQ for LS1 --> LS2 conversions. I am actually keeping track of this stuff, and I will post it when it resembles completeness.
-Geoff
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right, the valley cover is needed as I do believe it's differnent. The cover will take care of the issue, so get it and you're all set.
I was curious about this same thing myself after seeing someone did drill and tap the block... but after talking to my builder, it's not nessassary.
I was curious about this same thing myself after seeing someone did drill and tap the block... but after talking to my builder, it's not nessassary.
because the seals will be enough, why do the extra work for nothing? Even if some seepage were to get by at that point, it's not going out of the motor, it's runnign right into the valley and back into the crankcase.
Eastside's built a ton of ls2 based motors, and hasn't done that to a single one, and none of them are having any issues... GM put the seals on the valley cover, that being said, I think they probably know what they are doing. If they thought that was inadequate, the blocks would be tapped and a plug bolt would be supplied.
Eastside's built a ton of ls2 based motors, and hasn't done that to a single one, and none of them are having any issues... GM put the seals on the valley cover, that being said, I think they probably know what they are doing. If they thought that was inadequate, the blocks would be tapped and a plug bolt would be supplied.
because it is a waste of time, way spend time doing something that will net you zero gain?
I mean people can polish the top of their heads so they look really neat when the valve covers are off, but at the end of the day, it's a waste of time, no gain will be netted by doing it. Same thing as drilling, tapping and plugging holes that are covered by the valley cover and a rubber seal.
I can think of alot more important things to focus on in an engine other then tapping and plugging a hole that the factory already seals with a gasket.
you being an engine guru, I'd hope you could to.
I mean people can polish the top of their heads so they look really neat when the valve covers are off, but at the end of the day, it's a waste of time, no gain will be netted by doing it. Same thing as drilling, tapping and plugging holes that are covered by the valley cover and a rubber seal.
I can think of alot more important things to focus on in an engine other then tapping and plugging a hole that the factory already seals with a gasket.
you being an engine guru, I'd hope you could to.
The purpose is to supply pressurized oil to the lifters for the solenoids to activate or deactivate the lifters.I believe if u dont plug them and they leak u might lose oil pressure.
Exactly.... it's better to plug them and then setup the motor to run on the least amount of oil pressure that it needs. It might be me, but when I spend 6 hours making a crank scraper as a normal practice, taking 20 mins to run a tap and a set screw in a hole to make sure something works perfect is not a problem to me. Maybe that's just me though.
Here is a pick of what they supplied oil to on my L92. The stock valley pan is the crazy thing with with the orange o-ring. W2W put a reg plate on it. I can't say if they plugged them or just used the valley pan that pluges them.
I'll bet that w2w just used the valley cover. Ken at Eastside who's building my motor talks to kurt and several other people that are at the leading edge of the ls1 world, and if he tells me its' not needed, then it's not needed. I am not one to question his knowledge or ability, and neither are most people for that matter... I trust what the man says, if he says it's not needed, it's not needed.