I did buss with t&l engine's about 1.5 ago on a 540 for my boat. My name is Ted from Ca and I thought I had a little prob but luckylloyd took care of me! He upgraded my block from a gen 5 to a dart big M along with other internal's in the motor and also will called me a 12qt oil pan that costed $500 +. I would do buss with him again! It's rare these day's to find a buss like t&l engines that stand behind there product's and customer's. Luckylloyd (t&l engine's) is a STRAIGHT UP BUSS.!!!!!!!! Thanx again t&l Ted Kirschner Rancho Cucamonga Ca.