I have a 2002 silverado ecsb 4x4. Dropped 2" rear with 30"tires. I am looking for the best set of heads for this truck. I am running a custom grind bullet cam 226/232 @ 0.050 with .610/.610 lift 110+4 LSA, 95mm typhoon intake long tubes, no muffler. Which heads has best flow numbers and work best. I dont care about ported flow numbers i want stock numbers. Potential head numbers: 243, 799, 317, 821, 241, 8452. Any comments on these heads?

 

https://www.performancetrucks.net/fo...-5-3-a-482490/ about 10 questions down

 

which cam are you really running, because you stated you got a different cam in your other thread and 799 heads.

 

well to be honest with you i have both 223/230 .601/.601 110+4 LSA and 226/232 .610/.610 110+4 LSA which ever one i do not run i am selling to a friend. I got way out bid on the 799 heads so i spoke too soon so now im trying to find out which heads are best

 

milled 243/799's

 

i was looking to do 243/799 milled to a 59cc and port work with acid etched intake ports. So has everyone had good luck with the 243/799s?

 

Since you asked what the "best" heads for a 5.3 are..I would say a set of the 205cc genx TrickFlows would be the "best" heads for your setup (If you plan on staying 5.3) They would work well with the larger lift Bullet cam you have...You are definately going to need a higher stall converter..

And tied for 2nd place would be the tea or prc 5.3 cnc heads..maybe take a look at the sdpc ones as well ?? all imho of course

 

the best stock head would be a 243
only down fall is a 64.45cc combustion chamber,must be milled if used on a 99-06 5.3

A ported head or aftermarket head is a whole new ball game

 

Are the trick flows better that P&P 243s?

 

and i have a 3500 stall forgot to mention