502 ho cam swap. Will be going into a heavy car (impala) with 3. I found the cam but I'm not su...

502 ho cam swap. Will be going into a heavy car (impala) with 3. I found the cam but I'm not sure what other valve train parts I'll need to Jan 4, 2010 · Subscribe Reply Subscribe Tags 211230, 502, 575, cam, change, gm, ho, hp, lifters, lunati, roller, stock, swap, upgrade, zz454, zz502 Back to Subforum Engine Mods View Next Unread Sep 10, 2003 · 14096209 Hydraulic Flat Tappet "502" This hydraulic flat tappet "502" is a good street high-performance and marine cam used in the Gen V 502 H. Jan 27, 2014 · I bought a 502HO. 050 Sep 15, 2002 · General Q & A - Best cam choice for stock Gen VI 502? - The 502/502 is a 502 HO partial engine assembly with the bigger camshaft. Motor is stock. I put the zz502 cam in it. Will need good vacuum for power brakes. The cam didn't come with any kind of papers or cam card. Jun 25, 2007 · I have purchased a crate zz502 and have read many posts stating it needs a cam change to "wake-up" the engine. I GO STEP BY STEP ON HOW TO SWAP THE CAM AND HOW TO UPGRADE THE SPRINGS FOR THE CAM.