Seriously confused...
#2
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the 799s and 243s are the same just different numbers?
they come on the newer 4.8/5.3s and they came on the LS6s. (i think) but they only difference in the 799/243 and 317s is the Chamber.. the 317 is a 72cc and the 799/243 is a 66 or 68cc.. cant remember.
they come on the newer 4.8/5.3s and they came on the LS6s. (i think) but they only difference in the 799/243 and 317s is the Chamber.. the 317 is a 72cc and the 799/243 is a 66 or 68cc.. cant remember.
#4
317's and 243's have the same flowing , but different CC
317's are mostly used for boosted applications..
read post #4 , a little info on heads..
https://www.performancetrucks.net/fo...&highlight=862
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