The 360 has 273 style rockers on it. Nothing uncommon there, as they were an alternative to buying roller rockers. Check that it has a solid tappet, rather than a preloaded hydraulic lifter.

The main selling point for the X block is that most roller lifters are a total drop in. Otherwise they're very similar to the early R blocks that came much later. Both blocks were machined with factory type tooling, just the casting had a lot more material where it matter.

You shouldn't have any trouble selling the X block, they're defintely sought after by the 59* crowd.


Alan Jones