Stock valves
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#8
TECH Apprentice
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I have had a stock valve and last weekend a stainless vavle go away.. I race a lot more than most but I am going to Inconel this time.. I could do ti but no one has said weather they handle heat better or not..
#10
FormerVendor
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I've run 25+ lbs on 5.3's and 4.8's with no issues. 706 heads, 317 heads, 243 heads. (running E85, water inj, and an A2A IC as well) Pretty cheap "upgrade" though. If you have a nice motor I'd go with stainless. If your running a JY SBE motor I wouldn't worry about it.
If you're going to slap a 200 dollar motor in your engine bay, don't worry about it. If you're building a nice 8-10k+ motor, upgrade the exhaust valves to stainless.
#19
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Idk if i want to put a good set of heads on this motor or do an aluminum 5.3 later so that i can REALLY lean on it and do a set on that. I'm worried about ballooning the Cyls on my LS1 with my boost level. My engine builder said that i might have to worry about it running around 23psi