Truck/car exhaust valves
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Truck/car exhaust valves
I have noticed on the last couple of 5.7 heads that I have done that were mid year '00 and newer had the truck style exhaust valves in them. The truck style valve is 87 grams and has a tulip shape and the older car style valve is 91 grams and is more flat in shape. I have 2 sets of newer heads and they both have the truck style valve in them also. Just a little info for everyone. The tulip shaped truck style valves flow better and are lighter.