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Old 08-22-2019, 06:30 PM   #806
Scooby Guru
Member#: 82745
Join Date: Mar 2005
Chapter/Region: SCIC
Location: So Cal
2005 Subaru STI
2003 EJ207 S204 Wagon


Originally Posted by WRXnick16 View Post
But will a stock internal EJ257 hold up at those power levels?
The new RA EJ257 stock short blocks have been known to hold up 550whp so far. Definite improvement over the previous short blocks, but the EJ257 SB really only had issues on bad tunes (below 450whp) or failing when the oil runs low. So in comparison, the FA is still not better than the EJ due to rods failing at a lower hps.
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