Hey guys, new to the LS motor and just have a couple quick questions. I have an 02 EC 1500 with the 5.3. First off, what are the factory rocker ratios? Are there any decent gains with getting a higher ratio rocker on a stock cam, and if so, what ratio would you guys recommend with the factory springs? Thanks in advance!
stock rocker arm ratio is 1.7, you can go to a 1.75 or 1.8. but I'm not sure of the stock valve springs
2000 2-toned silverado, Totalled. Gone But not Forgotten.
Now: 2002 black rcsb chevy. 5.3, P&P 862's, Comp 224/230 .58*/.59* 114 LSA, Racetronics 44lbers, ARP 2000's, Ebay long tubes, 4L80E, 3800 yank pro, transgo HD-2, 4.10's, True-Trac, Walbro 255, Nitrous Outlet plate setup for 200, 80mm BBK, 3" Magnaflow, and Raggedy traction bars! Waiting to be istalled, F.A.S.T LSx intake..........
Best: 7.40@90 1/8th
Tuned by: DIXIE PERFORMANCE
The small gains from a set of rocker arms doesn't justify the cost. And I'm talking about quality rockers, not cheapo ebay ones.
For about the same price you could buy a new/used cam and then begin collecting all the other parts needed to install it. Then you will see some REAL gains in HP/TQ.
Big slow mud truck with a TUNE!!!!!!
I second what he said.Originally Posted by Beatdown Z
99RCSB Broke because I wasted thousands and thousands of dollars on my truck.
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