did 05-07 vettes come w/ 862 heads 5.3 litre heads?
12-24-2009, 04:53 PM
#1
did 05-07 vettes come w/ 862 heads 5.3 litre heads? did 05-07 vettes come w/ 862 heads 5.3 litre heads?
or it a desireable upgrade for the LS3 motor to have these 862 heads (that where professionally ported?
I searched for 2 hours.
Thanks
or it a desireable upgrade for the LS3 motor to have these 862 heads (that where professionally ported?
I searched for 2 hours.
Thanks
12-24-2009, 05:03 PM
#2
11 Second Club
iTrader: (4)
Join Date: Aug 2004
Location: DFW
Posts: 470
Likes: 0
Received 0 Likes
on
0 Posts
They came with a LS2 so they should be 243 heads. Some LS2's came with 241 heads but I am not sure what year. Why would you want to swap heads on a LS3? I have seen full bolt on's + cam with stock heads make 470 - 490 HP.
