Yeah my push rods are Comp Cams off the shelf hollow too same size as Ford 302. But Comp makes many many different off the shelf size push rods. Keep in mind my cam is custom ground with extremely small base circle and my heads are milled too. Not likely others would use the exact same size push I use. Plus with the Comp Cams Pro Magnum rocker arms you have to have the push rod length right on the money or the oil feed hole to the rocker arm adjuster will get blocked.