So basically any B-body then?
LT1 is a great motor, capable of putting down the same amount of power as any SBC.
They are notorious for their crappy Opti's but I can honestly say that with over 200k on the wagon, multiple waterpumps failing and dousing it with coolant, it's never missed a beat.
Plus, an LT1 will always sound better than a GTP.
All this being said, I'd much rather play with an L67/L32 than an LT1.