notch pistons w/ g5x2 & AS 5.3L heads???
#1
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Nov 2003
Location: Dallas, TX
Posts: 621
Likes: 0
Received 0 Likes
on
0 Posts
notch pistons w/ g5x2 & AS 5.3L heads???
Does anyone know if I need to notch my pistons to use a g5x2 cam with Absolute Speed 5.3L stage 2 heads. The new versions come with 2.04 intake valves also.
#3
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Nov 2003
Location: Dallas, TX
Posts: 621
Likes: 0
Received 0 Likes
on
0 Posts
Thats what I'm also hearing. I thought one of the big advantages of going w/ 5.3l heads was so you can fit bigger cams in w/o fly-cutting the pistons and at the same time have a higher compression.
Any other thoughts...
Any other thoughts...
#4
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Nov 2003
Location: Dallas, TX
Posts: 621
Likes: 0
Received 0 Likes
on
0 Posts
UPDATE:
from LG,
The piston to valve clearance is only an issue on the 5.3 heads due to the larger valves. The Absolute speed heads are our choice when we need a very good head at a reasonable price. You still have to fly cut, and should try to get close to 11:1 comp ratio so you can still use 93octane gas.
I guess cam only for me now since I do not want to fly-cut!
from LG,
The piston to valve clearance is only an issue on the 5.3 heads due to the larger valves. The Absolute speed heads are our choice when we need a very good head at a reasonable price. You still have to fly cut, and should try to get close to 11:1 comp ratio so you can still use 93octane gas.
I guess cam only for me now since I do not want to fly-cut!
#6
TECH Fanatic
iTrader: (6)
Join Date: Nov 2001
Location: Las Vegas
Posts: 1,101
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Ben01C5
I have seen lots of people saying they have to flycut, but never heard a price mentioned on having it done.
Give Jay a call and find out more about it. notching the pistons is not a big deal at all.