I am wanting/trying to find the specs on a factory stock 2004 GMC Sierra 1500 CrewCab 5.3 liter camshaft.

I am trying to do some research on new cams, but it would help to know what stock is. I'm not looking for anything really noticable or radical in a new cam. Just a little upgrade from stock with a slight lope.

Thanks in advance guys.

 

the stock cam is somewhere around the 190/191 duration area i believe. if your looking are a little more power and want to keep most stock end power i'd go with a 212/218 559 563, if your adding a stall and have at least 390 gears like you do, i would go with a 220/220 550-560 lift 112/114(114 will idle better), but i would reccommend at least a 3k stall with this one. i just order a 221/221 551 551 114 and i have a 3200 yank. it should go well i hope.

 

oem cam specs


https://ls1tech.com/forums/showpost....87&postcount=9

 

Thank you for the link. I wasn't aware the 4.8 and 5.3's used a reverse pattern @ .05

 

I like the 212-218-522-529-114

No stall required... and I gained 30rwhp and 19ftlbs

 

But The 212/218 522/529 In An Xcab Is Not Good We Have Try It And Only Pict Up 1 Tenth To Me That Is Not To Good.reg Cab It Worded Good Enough.