necrotopsy
10+ Year Contributor
- 718
- 6
- Jun 5, 2010
-
SW,
Michigan
no one replaces the crank on the 420a they dont even make aftermarket cranks as far as i know.
pistons/rods are a given.
head gasket job is needed for an engine rebuild anyway MLS gasket is my recommendation.
if you upgrade the cams, you also need upgraded springs or else valve float will become an issue in higher rpms. and upgraded retainers are just for piece of mind.
the answer to your question is kinda hard.
my opinion: people upgrade them because either they dont know better, or they are going for a full out built engine. and for cams, they might want the "cammed" sound.
pistons/rods are a given.
head gasket job is needed for an engine rebuild anyway MLS gasket is my recommendation.
if you upgrade the cams, you also need upgraded springs or else valve float will become an issue in higher rpms. and upgraded retainers are just for piece of mind.
the answer to your question is kinda hard.
my opinion: people upgrade them because either they dont know better, or they are going for a full out built engine. and for cams, they might want the "cammed" sound.
sorry i wouldnt mind it.... just sayin hahaha

