455 Super Duty rebuild guidelines

[tjs44]

Ken was wanting to keep more toward stock.If mine and wanted more HP I would kick it up to 9 or 9.5 CR and put a cam in more in the 230-236 range with more lift.Those heads will breathe,the factory had to back everything off to meet smog.They got caught in a VW type smog cheat and had to reduce the cam in the SDs.FWIW,Tom

[KenMaisano]

Originally Posted by tjs44

Ken was wanting to keep more toward stock.If mine and wanted more HP I would kick it up to 9 or 9.5 CR and put a cam in more in the 230-236 range with more lift.Those heads will breathe,the factory had to back everything off to meet smog.They got caught in a VW type smog cheat and had to reduce the cam in the SDs.FWIW,Tom

Yes I agree if your looking for more of a hot rod. This is my 70 RamIII auto trans and 323 gears . with a Crane HR230 230 238 528 540 ran killer!!
https://www.facebook.com/14474820895...1553117274100/

[njsteve]

Another vote for that Summit 2802 cam (but remember you have to change the distributor gear on any cam swap on an SD455 since no one makes the correct camshaft that I know of, with the right gear size)