bigger valves vs rocker am ratio
Posted: January 30th, 2021, 10:34 am
Hi all i'm new here but not new to jeeps , i'm currently freshing up a 01 4.0 for my jeep and have a question about which way to go for a head.
the motor was from my old jeep that never gave me any problems at 180k the jeep rusted out . I pulled it and stared putting new gaskets in and when i went to do the valve stem seals i found the exhaust vales where pitted and weren't holding pressure . pulled the head and was planning on getting it rebuilt but now im leaning towards getting a reinforced 0331 head . I was toying with going to 1.7 rockers but i see clearwater has heads with bigger valves so i'm not sure which way to go . i'm no expert on engine building but i think doing both might be asking for trouble as everything else is stock I plan on getting a tune eventually but i'd also like some that i can run untuned as well.
Again i'm no expert but i do understand how changing rocker arm ratio works, im open to hearing options .
thanks
the motor was from my old jeep that never gave me any problems at 180k the jeep rusted out . I pulled it and stared putting new gaskets in and when i went to do the valve stem seals i found the exhaust vales where pitted and weren't holding pressure . pulled the head and was planning on getting it rebuilt but now im leaning towards getting a reinforced 0331 head . I was toying with going to 1.7 rockers but i see clearwater has heads with bigger valves so i'm not sure which way to go . i'm no expert on engine building but i think doing both might be asking for trouble as everything else is stock I plan on getting a tune eventually but i'd also like some that i can run untuned as well.
Again i'm no expert but i do understand how changing rocker arm ratio works, im open to hearing options .
thanks