can i use the Comp GM LS1 LS2 LS6 LS7 Xtreme RPM 269 Camshaft Cam Top End Power 1300 6300 | eBay COMP CAMS XR269HR with beehive springs 918-16 and NO STALL CONVERTER i wanna keep the stock one! it is possible

or it will be better to go with the XR265hr

 

Okay that is a great cam for a stock stall in a 5.3. You are going to run into some smallish issues though. You have an 08 yes? Then you have a single bolt cam. The one in your link is 3bolt. It can be modified to work, however, it is much simpler to just get a single bolt cam. If you get a cam with those exact specs then you can use your stock springs and only need to swap to hardened pushrods. If you swap to a stock stall from a straight 6 trailblazer(4.2L) then you will have a near perfect setup matched to that cam. I hope you have deleted any VVT or DOD crap you may have from the factory. Who is doing your tuning?

 

Why modify the stock cam gear when you can just buy a 3 bolt cam gear

As for the truck what trans an motor are unknown bc he didnt post it nor does his sig say it. Unless you know him personally.

 

3 bolt cam gear is like $20....

 

Why buy a 3bolt cam when a single bolt is readily availible? As for his truck the guess I made was based on his 3 previous threads all talking about his 08 5.3 4speed truck.

 

3 bolt cams are available anywhere.
Not very many single bolt cams are on the shelf waiting to ship.
3 bolt cam has higher resale value
Single bolt cam has a torque to yield bolt
Single cam bolt requires a degree angle gauge to tighten correctly
3 bolt cam has lots of aftermarket options for HP timing sets, billet, double roller...

 

i live outside of usa.. its an 08, 3.73 w/4l60e it has a thumpr cam 54-600-11 but im tired of it.. i want something more quiet and powerful.. and i dont wanna change my stock converter...

i have the lingenfelter sprocket