Rcdvt

Went through heads. Valves gaskets everything. Re assembled..... Truck refuses to fire.  Been constantly cracking and bleeding injector lines. Fuel pumping there.  Injectors were all the done. New nozzles and pressure set.  She acts like she wants to go but isn't quite there.  Any suggestions?

Test showed exhaust gas in coolant. Pulled heads to get checked..... Injectors.... Let's just say we're currently building apparatus esses to remove a few

Dm with e6 237 pushes coolant but doesn't heat. No thermostat. Truck sat for 10 years.  Didn't disconnect compressor as it won't push water idling or when compressors is running. Only does it under a load.  Any thoughts or suggestions?

Can you swap this to a 300 or larger Mack for more hp and ditch the twin stick trans for more gears at the same time. 

Truck is a beast and will surely last me.  Thinking at this point it is a cracked head.  Going to swap water pump next in case.

Thanks in advance.