pwtr02ss
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You've not disappointed yet
2004 6.0 NV4500 Tahoe
- Thread starter Dantheman1540
- Start date
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Dantheman1540
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The ARP studs are perfectly short enough to have almost no protrusion so that’s a win. Also got the steam ports drilled and ready to go, tomorrow it should be driving.
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You like us looking into your holes, admit it.
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Dantheman1540
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Guilty as charged!You like us looking into your holes, admit it.
pwtr02ss
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Nice work as always Dan. Glad you got the bolt situation figured out. I think that's about how my btr bolts looked. Wish I would've taken a pic. Glad you got the coolant holes drilled with no issues as well. Having the reroute that hose would've bothered me after a while (if it were my truck). Looks factory and should work as intended. I'm curious if the mpg improves with the more efficient heads or if it hurts it. I can definitely tell the avalanche is working less to run 80+ on the interstate so I have to assume with proper computer calibration by a trained a professional, I'd have to get better mileage than before.
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Dantheman1540
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I think I might lose some mpg, dropping .4cr won’t help and they definitely don’t flow more cfm at 2k and below which is what I highway cruise at 80mph. But it’s ok I want to feel the cam make more power up top!
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Dantheman1540
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It’s alive! Got everything slapped together this morning and started it up about noon. No leaks so far and it idles and runs well besides being fairly lean. It also has slightly more noise coming from the passenger side of the motor so I think I need to check the rocker arms over there. Have only driven it 2 or 3 miles around my neighborhood, and at first I thought the noise was an exhaust leak, which it may still be it’s just to hot to touch the headers right now to check. So it’s break time!
Hopefully a rocker arm is a hair loose I can torque it back down and be good to go.
Hopefully a rocker arm is a hair loose I can torque it back down and be good to go.
Awesome news. You did that pretty fast. Congrats.
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Dantheman1540
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Thank you thank you! Hopefully I can snug a rocker arm and eliminate the odd noise, I do wish oil pressure was higher hot idle is 25-30# but it’s a standard pump so no biggy.
pwtr02ss
Full Access Member
My hot idle is about 30 I believe. My Yukon is like 18-20...variable pressure pump or whatever they call it
My avalanche also has more noise on passenger side. More prominent sewing machine
