ok, so before any of u start saying " why didnt u get a 6.0?", this short block was GIVEN to me, has less then 45k on it. FREE!!!!!!.....so now that this isue is squashed, what heads to run on it, 706,862,243,317....need some advise. im sure i will call Richard @WCCH, but for now, wanting some input. I will probably go TR220 with it, and keep all other mods in my sig. The 4.8 just isnt cuttin it anymore. I will get a converter eventually, but not at the moment. I know with this cam i will be needing one. keeping stock intake and fuel setup. gimme your input, floor is open!!!

 

706..

 

milled 243 head...
raised compression and tr220 cam, it should run good with a good tune..

 

texas speed stage 2.5 5.3 heads . they are 862 casting with bigger valves ported and polished. $1134.99

 

x2...

 

Sorry to be askin this...but how is the HP gains on PRC stage 2.5 heads? My camshaft is a GT11..

 

So 243s a no go?

 

dunno, im not building it anymore, deal fell through, actually motor was in a flooded silvy....NOOOOO THANK YOU!!

 

i have a 5.3 with a radix and was wonder what heads to go in as well

 

I am getting ready to put the texas speed 2.5 5.3 heads on my radix I will let you know.