[yetibone]

One question I have regarding Type IV heads has to do with fitting larger valves to a pair of Bus heads. I understand that 2.0 914 heads drop valve seats with catastrophic results sometimes, and if the Bus heads are not metalurgicly worthy of such an upgrade, then I don't want to ruin my engine while finding out.

Is it safe to install 42x36 or larger valves in '75-'79 2.0 Bus heads, or is it more cost-effective to find genuine 914 1.8 or 2.0 heads rework them?


Thanks

Yetibone