I have a '72 402 with 69 truck heads (3933148....69-84, oval, open chamber, '69 396/265hp, 366T, 427T, 112cc chamber). Roller tip rockers. ~9:1 compression. It's been rebuilt with Silvolite stock spec'd pistons etc.
I have what seems to be a lifter tick on #7 intake. I adjusted them again and even tried going to a full turn for preload. I re-used the cam and lifters that I got with it because they were a/m. Not sure of the brand. Maybe a local grind. I picked the engine up in Detroit. So I'm figuring a bad lifter now.
I'm planning to throw a cam and lifter set at it. A friend has a set of Brodix heads that I might do some horse trading for and maybe not.
My questions are: #1 What should I get for a cam grind if I leave the heads alone. #2 Should I spend money on this short block? It's tight and doesn't burn any oil.
I'd like to leave my factory looking brake booster, so that adds some limitations on height. I might change valve covers as much as I don't want to.
I can see myself getting a roller cam and spending some money on heads. I can't afford to do any machine shop work right now. Cams are relatively inexpensive HP and Tq, so that might be all I do.