What are the internals? Have they changed over the years? Warranty?

I am not being sarcastic, they are a quality group of guys, I would recommend them to anybody.

great people, they helped us and gave us info about how diff exhaust systems performed, withuot us being a client. we would be a client, but dont got the $$$ for high quality

waranty 6 months to 1 year depending on motor package you need to call and talk to randy .

my motor runs great we had my 28 pantera single 600c.i. 725 h.p. at 84 m.p.h with stock prop we will be looking at 86 or 87 once we lab it those are real good #s for a single engine 28 f.t. pantera with cabin ++

mike

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Randy Rocks!!!!!!!!!!!!!!!!!!!

Wow...a thread actually praising someone, not bashing them...nice.

Dart block, Lunati crank, Crower rods, Venolia pistons, Crane full Hyd. roller, Dart cast iron heads, Dart intake and Holley carb. 600 Cubic Inch with a lot of torque. I don't think they have changed, been there for over 25 years. 12 months waranty.