I was wondering if I hurt my truck by putting a set of 241 heads on it? they have been shaved down to 58cc's, I know they have a bigger intake valve compared to the 862's, just need someones opinion. Thanks

 

You should be ok both heads shared the same 200cc port.Plus the newer 4.8,5.3 have 243 stlye heads with 210cc ports and 2.00 intake valves.The only thing I would be conceared with is how much milling it took to get 58cc out of a 241.

 

the guy said he spent all day working on them, I can't remember the exact number but it was around 40 something thousands he took off to get them there

 

should be fine, it takes .060 to make the intake not line up right.