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Would like some help with this. The wife's 5.3 has cracked heads was going to just change out the heads but at 250k why. I have a 4.8 with 40k on it was going to put a stock 6.0 cam in it. Would this work and would I have to change anything else? Thanks
Depends on the year of the engines, earlier have three bolts and later have one bolt. But why would you want change a stock 4.8L cam to a stock 6.0L cam...the specs are so close you would not be able to tell any difference in performance or sound. I can see maybe swapping in an LS6 cam, but... Is the 4.8 cam damaged?
3-bolt cams below...
Corvette LS1
97-98 12554710 199/207 .472/.479 117
98-99 12560964 199/207 .472/.479 117
2000 12560968 198/209 .500/.500 115.5
01-03 12561721 198/207 .467/.479 116
Corvette LS6
2001 12560950 204/211 .525/.525 116 385hp
02-04 12565308 204/218 .555/.551 117.5 405hp
Camaro/Firebird
98 12557812 198/209 .500/.500 119.5
99-00 12560965 198/209 .500/.500 119.5
01-02 12561721 196/207 .467/.479 116
Trucks and SUV with Vortec engine
LR4 and LM7
99 12560966 191/190 .457/.466 115.5
00-04 12560967 191/190 .457/.466 114
the 03-04 LM7 used the 12560967 camshaft
LQ4
99-00 12560967 191/190 .457/.466 114
01-04 12561721 196/207 .467/.479 116
01-04 LQ4 cam is same as Camaro, Corvette LS1 and LQ9 cam
LQ9
02-03 12561721 196/207 .467/.470 116
GM Performance Parts
Hot 12480033 219/228 .525/.525 112
ASA 12480110 226/236 .525/.525 110