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Click on image for the lowdown. 
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| | | Forums66 Topics128,179 Posts1,057,130 Members48,463 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2004 Posts: 128 Shop Shark | | Shop Shark Joined: Dec 2004 Posts: 128 | My cams are custom ground for turbocharging so they will be installed with 0 overlap.
I posted the stock '06 GM cam specs on trailvoy.com a while back.
I'd leave the intake centerline where GM installed it and then install the exhaust cam on 110 to 112 centerline. If I remeber correctly the VVT at base timing puts the exhaust cam in at 124 deg centerline.
Marc | | |
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