Silver Top 4Age???

Hey I'm pretty new to Toyota performance and someone suggested gettin a Silver Top 4Age motor for my 1993 Corolla. What did these engines come in and what are the hp and tq ratings stock. How much will one of these engines cost? My dad has been a mechanic for 25 years so he could probably do the swap. Thanks for any help.

That 4age is a newer hotter version of the old 4age. This new engine has 5 valves per cylinder thats one more than the old one. This engine came in the MR2 (SW20) and makes 160hp. I don't know how much they cost.

the 4age 20valve did not come out of the mr2. the silver top is from the ae101 and the black top is out of the ae111 corollas. thank you for doing research before posting