Budget Build 5.9 for a 71 Scamp

[ScampNYC]

Running that head is a mistake, IMO. You'll get a lot saying "I've run them forever like that" and on and on. What happens is, when the engine heats up, those cracks get bigger. They allow hot exhaust gases through and can burn valves. But good luck with it if you do run it.

Thanks, I appreciate that input. Ultimately, after doing a bunch of research online and talking to my machinist, the decision has already been made to run it. Hopefully it holds up, but if it doesn't maybe I'll pull it and put in a set of EQ heads down the line!

 

[TT5.9mag]

Thanks, I appreciate that input. Ultimately, after doing a bunch of research online and talking to my machinist, the decision has already been made to run it. Hopefully it holds up, but if it doesn't maybe I'll pull it and put in a set of EQ heads down the line!

The only EQ heads available nowadays are garbage. Don’t order them. Use what you have for now, almost all magnums heads running in trucks with more than 60k miles on em have cracks just like that, it’s not uncommon for them to run perfectly fine.