Lifter Noise??

[PurpleMinivan]

Sad isn't it that companies would tell customers such things.... Sad

[Show&Go]

Sad isn't it that companies would tell customers such things.... Sad

No its expected to a point... BUT since ALL freaking cam's that are off the shelf (which that one is) are the same price why didnt they just advise a tr224 if this was a possibility. Maybe those PROS should do as much research as the people that advised me against listening to those PROS.

[f4tal]

Heres a good thread from PT.net
Read the whole thing, there are a few good links in there too

Maybe it might help

[txarkitekt]

Ian, it is definitely in the valvetrain. Greg brought up a good point about the rockers hitting the valve cover. But I would think that the valves would hit the pistons before the rockers would hit the valve covers--especially on a 5.3L with stock heads/stock ratio rockers/stock valvecovers.

PTV mayne! I heard that SAME noise on Dale's LS1 before it said bye-bye. But it wasn't that loud. You don't HAVE to take the heads off...you can just remove the cam and replace it with another one that doesn't have EFFIN .640 lift!!!!!! I can almost guarantee that you will see eyebrows on a few of the pistons if you take the heads off. You may have to look close since you spray and the cylinder heads should be clean, but even with that little of run time, you will see where the valves are kissing the pistons.

Sorry to hear all of that man. That just goes to show you not to listen to some companies when it comes to this stuff. I am not gunna say "I told you so" from when you had asked us about the cam issue in the other thread, but I told you so.

If I was you (someone who wants a big cam for a 5.3L that will scream on the top end), I would get a cam with a little more duration and just under .600 lift...like the TSP Torquer v.2 cam. Trust me, I have driven a 5.3L truck with that cam and it pulls to 7000 RPM.

[Show&Go]

At this point running it without pulling it apart would be retarded. While thinking it was a screwed up lifter it seen normal driving and WOT a few times. Its very well could be just waiting on destruction. Its over for that motor as far as im concerned. Im not buying ANOTHER 400 dollar cam to put in a motor that could be on borrowed time, screw that. Ill build a bigger motor that will handle this cam. A good high reving 6.0 should be fine. And as soon as I get it running and have a intake and all things FINISHED with the motor Ill take this cam out and have one spec'd. Then hang it on a wall as a reason to not trust large companies.

[txarkitekt]

Oh. I was presuming that the motor had only been run for the few minutes that was shown on the vids.

But yeah, the pistons may have gotten weak and you may have slightly bent the valves a little.

One thing you could do--which would be fun--is to put some 4.8L flat top pistons and do Stage 2.5 862/706 heads with a little bit larger valves (2.02" intake/1.575" exhaust Valves) in that motor with the TBSS intake and 150 shot. It would haul ass!

[ChevyLee]

I am always use to having piston slap. Its just to big.

[George C]

Ian, it is definitely in the valvetrain. Greg brought up a good point about the rockers hitting the valve cover. But I would think that the valves would hit the pistons before the rockers would hit the valve covers--especially on a 5.3L with stock heads/stock ratio rockers/stock valvecovers.

PTV mayne! I heard that SAME noise on Dale's LS1 before it said bye-bye. But it wasn't that loud. You don't HAVE to take the heads off...you can just remove the cam and replace it with another one that doesn't have EFFIN .640 lift!!!!!! I can almost guarantee that you will see eyebrows on a few of the pistons if you take the heads off. You may have to look close since you spray and the cylinder heads should be clean, but even with that little of run time, you will see where the valves are kissing the pistons.

Sorry to hear all of that man. That just goes to show you not to listen to some companies when it comes to this stuff. I am not gunna say "I told you so" from when you had asked us about the cam issue in the other thread, but I told you so.

If I was you (someone who wants a big cam for a 5.3L that will scream on the top end), I would get a cam with a little more duration and just under .600 lift...like the TSP Torquer v.2 cam. Trust me, I have driven a 5.3L truck with that cam and it pulls to 7000 RPM.

i ran the Tv2 in the past and i wouldnt run it again. studies have shown the tv2 is actually down on power compared to the 224 high lift. i had this cam and it dropped off at 6400 badly and i had supporting mods

[txarkitekt]

Weird. I have driven a truck with that cam + supporting mods and it absolutely screams and pulls to the 7100 RPM shift points. On a 5.3L with truck intake.

Must be in the tune....

[George C]

Weird. I have driven a truck with that cam + supporting mods and it absolutely screams and pulls to the 7100 RPM shift points. On a 5.3L with truck intake.

Must be in the tune....

even their site says 1800 to 6400.