Findings after pulling head, re: broken valvespring
#19
TECH Junkie
iTrader: (9)
So that never even bent that valve?
I would do the trunion upgrade on anything that isn't going to be driven in stock form. You are putting more pressure on it by using stronger springs, more than likely a different cam, and more than likely higher RPM's. If one gives out it doesnt just break, it spreads needles bearings throughout your engine. The upgrade is $130 and a little bit of work for cheap insurance.
I would do the trunion upgrade on anything that isn't going to be driven in stock form. You are putting more pressure on it by using stronger springs, more than likely a different cam, and more than likely higher RPM's. If one gives out it doesnt just break, it spreads needles bearings throughout your engine. The upgrade is $130 and a little bit of work for cheap insurance.