My 72 455 has run a Melling RA4 cam with Rhoads lifters for at least 20yrs. Broken in with Crane cam lube and still has Comp springs. Always used Wix or Baldwin filters with Valvoline 10/30 or straight 30 VR1 oil. This motor has been used and abused for many thousands of miles. I have to wonder about the QS 5w-30 synthetic use. My engine builder would never let me use that. Just checked some records, the springs are Comp 995 and the lifters were original Rhoads.
Last edited by straycat; 01-04-2022 at 10:37 PM.
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