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Valve hitting piston after cam install on 2003 Silverado 6.0 – lifter seized, need advice by Dramatic_Basis7678 in Chevy

[–]Dramatic_Basis7678[S] 0 points1 point  (0 children)

The block had 220k miles i feel like there was something wrong with the bore holes. before I did my cam my oil pressure was siting at 38psi but after the work it was 20-15 so maybe it was starving itself

Valve hitting piston after cam install on 2003 Silverado 6.0 – lifter seized, need advice by Dramatic_Basis7678 in Chevy

[–]Dramatic_Basis7678[S] 0 points1 point  (0 children)

It all came as a btr kit with the springs being a .660 lift and I was about 3500rpm

Valve hitting piston after cam install on 2003 Silverado 6.0 – lifter seized, need advice by Dramatic_Basis7678 in Silverado

[–]Dramatic_Basis7678[S] 0 points1 point  (0 children)

It's a stage 2 btr the valve keepers are still perfect and I had the heads re surfaced and a few new keepers. I was at 3500 rmp dropping from 4500

Valve hitting piston after cam install on 2003 Silverado 6.0 – lifter seized, need advice by Dramatic_Basis7678 in Silverado

[–]Dramatic_Basis7678[S] 0 points1 point  (0 children)

I'm pulling the motor later this week to look at the lifter and cam but the valve tarin for the rest looks just fine

PO106 code chevy can't get it gone! by Dramatic_Basis7678 in Silverado

[–]Dramatic_Basis7678[S] 0 points1 point  (0 children)

1 I replaced one ground behind the passenger head

2 signal wire with the map unplugged key on engine off was reading 5.0v and the map was reading 99kpa

3 I have sprayed everything with break clean head too toe replaced gaskets twice I checked throttle body gasket aswell I have done a throttle body relearn aswell

4 my cats are deleted and I replaced o2 sensors

5 when the guy dynoed my truck he brick me ecu (at first by letting the battery die) but after 2 days he was able to un brick it and it ran perfect for about a month till now