Should I replace valves in 408 w/ LS3 Heads
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TECH Fanatic
Joined: Jul 2006
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From: North Bay, Ontario
Should I replace valves in 408 w/ LS3 Heads Gettting a 408 stroker built and i have a set of stock LS3 cylinder heads going on it. Machine shop is reccomending changing both intake and exhaust valves due to the fact that the intake are hollow and exhaust are not solid and are 2 pieces that are just welded together.
I am running a TSP 231/236 cam .644 lift
What do you guys all reccomend?
I am running a TSP 231/236 cam .644 lift
What do you guys all reccomend?
LS3 heads are just fine for a relatively tame setup (not like you're running 1000rwhp).
They just trying to sell you some more ****. The LS3 valves are quite ok, in fact a lot of L92 guys switch over to those for the weight.
They just trying to sell you some more ****. The LS3 valves are quite ok, in fact a lot of L92 guys switch over to those for the weight.
Id def go for the hollow stem as well. plenty of people run the ls3 vaves way past 7000rpm on some pretty serious builds. im running hollow stems on my heads, they arent LS3's though.
