Dont know if you bought one already or not. but its an old engine and was used many years ago. no parts available. problematic and eventually very costly.
also note that the local khyber will run like a heavy elephant with this engine!. you will need to modify braking as well as suspension.....to get a good feel. you will get power , naturally as it is more powerful ( but a 100 bhp is small change) but the over-all dirve, steering etc of the car will not be smooth. again. no parts any more.