Originally Posted by Charles Lavoie


- If I gave you only ARP head studs, what's the highest horsepower stock Subaru engine can handle before snapping a rod? 400HP? Highest recorded stock 6 bolt. 585whp and it never blew up.




Pfff, ring lands will be gone long before 400hp.

I have a Subaru and it sounds like it's gonna blow up at 6k rpm with all of it's 165hp glory.

Also the stock 6 bolt record is 742whp rotate

Half decent Evo 8's are going for $10-12k now in the states, so if you want to import it, tack on an extra 30%.


1997 Eclipse GST - AWD swapped - TPC - GT Spec powered
2023 - 9.63 - 145mph