5.3 Engine build questions

[Eddiebray73]

Hi everyone! New to the forum an want to thank everyone in advance. I have a 2004 chevy 1500 4.8 that needs a new engine, i just picked up a 5.3 an was wondering what i could do to give it some more power, id like to buy some 4.8 pistons an add them to the 5.3 for the extra compression, i currently have some castec 862 head that have been milled down an refinished and ive been looking at the 212/218 comp cam, i need to keep the low end torque because the truck is currently sitting on 35s, i just turned 18 and im not great with compression ratios an have never done a motor build but would love the oppertunity to learn, id like to stay on somewhat of a budget but understand, im still looking at 2-3k in parts and machining, any input would be greatly appreciated! Thanks!

[Carder09]

How about buying lower compression Pistons and turbo charging that bad boy.