Yeah... If I were looking at Edelbrock heads some pistons for some decent compression as part of a fresh bottom end would be first on the list. As far as that goes... 80,000 mile motorhome engine. Get some compression test numbers. The cost of a set of Edelbrock heads would almost certainly be better invested in freshening the bottom end up with decent pistons with some compression height. It's a crapshoot on what kind of condition the cylinders are in, but motorhome engines typically have a lot of time not doing anything and collecting condensation, and then getting ran and on a long trip before the next oil change. It wouldn't surprise me if a ridge reamer had to be used to remove the pistons. And I say this because the '76 360 I have got used the exact same way and it will require a ridge reamer to get the pistons out of it.
