243 heads from 4.8 engine?
01-15-2011, 04:12 PM
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243 heads from 4.8 engine? ok so i got some 243 castings off a 4.8 engine out of a '09 silverado. are these the same as the "traditional" 243/799 head? same valve sizes, etc. if so i want to install them and swap my valve springs and such. thanks for the help. 
