Help IDing this engine block!

[kurtisp777]

I have an 1987 mustang GT, the numbers i found on the block are as follows

30
E7TE-CA

does this block have forged pistons?, is it and "HO", i have GT-40 heads on it, the firing order is 13726548 in case that might help, im looking to turbo or put nitrous on this motor.

thanks Kurt

[silverstangboy]

E7 = 1987 T=Truck line E=engine division

this really tells us nothing other than its a latemodel 5.0 block you'll have to get me the part number off of the piston itself to see if its forged or not.