I have a 1987 chevy iroc 5.7 I'm pulling out my engine to replace all gaskets clean it up add some headers to it but I wanted to know if there is any cheap good aluminum heads I can put on the 5.7 being all stock no bore

 

Cheap and aluminum don't mix

 

very very true.

Aluminum heads can be thousands of dollars new.

Not sure if a Corvette L98 heads work. They were aluminum heads I believe. Someone correct me if I'm wrong. But even so, good luck finding them cheap.

Better off getting vortec heads for the price (if you want to keep the TPI they make intakes specifically for L98 TPI with vortecs.

 

Aluminum vette heads. Also know as 113 heads.
They should work. A hole will need to be drilled in the passenger side head for the accessory bracket to attach.
If the heads are left untouched you definitely lose some pounds up front.
I have a set that have been heavily modified.
Try the for sale forum here and eBay to score a set.