What did you do to your NBS GMT800 Tahoe/Yukon Today?

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RobsFreeland

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I did both of mine -cams, dual springs, hardened pushrods, vitron valve seals- without pulling the heads. It’s not necessary unless you’re replacing the lifters. Is was especially easier to do it that way on the one that’s supercharged- no need to pull that damn blower.

How much difference in pushrod length from stock to your new pushrods? You think I can start it and drive to tuner?
 

Rocket Man

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How much difference in pushrod length from stock to your new pushrods? You think I can start it and drive to tuner?
Vinci High Performance sold me everything I needed so they’re the ones that determined that but I’m pretty sure they’re stock length. I have no idea if your setup requires something different. You need to ask whoever you bought your valve train from that question. Whose cam is it? What are the specs? What lifters, springs and rockers are you running? Just curious.
 

RobsFreeland

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Vinci High Performance sold me everything I needed so they’re the ones that determined that but I’m pretty sure they’re stock length. I have no idea if your setup requires something different. You need to ask whoever you bought your valve train from that question. Whose cam is it? What are the specs? What lifters, springs and rockers are you running? Just curious.

Cam is from summit, 8701-r1 , new lifters that came with cam kit. Beehive springs, new, stock rockers. By eyeballing size of lifters and springs seem to be same size, I thought I could stay with same length just upgrade to hard pushrods. I have pushrods measure tool, probably do today if I can finish torqueing heads.
 

Rocket Man

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Cam is from summit, 8701-r1 , new lifters that came with cam kit. Beehive springs, new, stock rockers. By eyeballing size of lifters and springs seem to be same size, I thought I could stay with same length just upgrade to hard pushrods. I have pushrods measure tool, probably do today if I can finish torqueing heads.
Ask Summit. Oh wait- they’re worthless. Nobody to even talk to. I bought from a company with excellent customer service with someone who I could reach out to with questions, www.vincihighperformance.com since I wasn’t all that knowledgeable myself. Yours should be stock length but I can’t say for sure. I could call Roger Vinci and ask him but that wouldn’t be right lol.
 

RobsFreeland

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Ask Summit. Oh wait- they’re worthless. Nobody to even talk to. I bought from a company with excellent customer service with someone who I could reach out to with questions, www.vincihighperformance.com since I wasn’t all that knowledgeable myself. Yours should be stock length but I can’t say for sure. I could call Roger Vinci and ask him but that wouldn’t be right lol.

So true. I realized if everything was the same then I could prob stay with same length pushrods, but I changed cam and lift parameters so the length of the pushrod will change . So I will have to check length and lash. Hit with epiphany or brick your choice. Thanks
 

Scottydoggs

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Finally got enough clear weather, and snow melted, to wash and do half a detail today. Ahh.. better. Sorry for the crappy pictures.

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damn she just clears the garage i see. wish mine was clean. its been getting snowed and rained on for the last month.
 

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