Hello to all. I'm a new member. I've owned three suburbans over the last 25 years (keep 'em for a long time). Current truck is a '97 GMC K1500 4x4 with 210K miles. I'm once again interested in buying another (used) 4x4 but am interested in possibly an 8.1L for towing a 3000# boat. I'm only familiar with the 5.7L and have had great history with that engine. I look forward to tapping the knowledge and resources from this forum. Thanks, Jim.