I have 3 different mopar mini starters. A 1.2kw a 1.6kw & a 2kw. The 1.2 with start a low compression big block when hot, but its a struggle. The 1.6kw is better but on my race motor when hot, you need a good charge in the battery. The 2kw will spin the earth oround your motor, even when hot, but, it dont have a snout so if you have a kickback, im sure it'll rip itself off the bellhousing. I ended up welding a snout on for extra strength.