LS7 Lifters with 347 w/ nitrous and high RPMS?
#1
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Ok guys im getting together all the parts that i need for my 347 build.
So far these are the parts i have:
Ported and polished 5.3 heads
LS6 intake
MS4
All bolt-ons.
As for the motor build these are the parts that im planning on buying:
Scat H beams with ARP 2000 bolts
Diamond pistons with 2cc valve reliefs
and all new bearings.
Well my valvetrain is already completely upgraded so now what i need to know is should i go with these LS7 lifters, or some comps? Let me know if any of you guys are running these lifters.
I figured if GM uses them and they are turning the vette pretty high RPM's then i thought they would prob work great for my setup. Lets hear your thoughts.
So far these are the parts i have:
Ported and polished 5.3 heads
LS6 intake
MS4
All bolt-ons.
As for the motor build these are the parts that im planning on buying:
Scat H beams with ARP 2000 bolts
Diamond pistons with 2cc valve reliefs
and all new bearings.
Well my valvetrain is already completely upgraded so now what i need to know is should i go with these LS7 lifters, or some comps? Let me know if any of you guys are running these lifters.
I figured if GM uses them and they are turning the vette pretty high RPM's then i thought they would prob work great for my setup. Lets hear your thoughts.
#5
11 Second Club
iTrader: (4)
Join Date: Mar 2007
Location: Grand haven ,MI
Posts: 580
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
the caddie lifter's *** $220 from speed inc tested to 8500 rpm's can't go wrong with them. i spun my stock ls1 lifter's last year to 6800 a hundred time's top end run's and all .I can't count how many time's i ran it out in third to 6800 before getting o/d
my bitch with the stock one's was they like to drop a lifter when ever they feel like it at idle. did it bone stock.
but at w.o.t no problems
my bitch with the stock one's was they like to drop a lifter when ever they feel like it at idle. did it bone stock.
but at w.o.t no problems
#7
11 Second Club
iTrader: (4)
Join Date: Mar 2007
Location: Grand haven ,MI
Posts: 580
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
what comp lifter's ? the 850's are same as stock but the r series comp comp say's like .004 preload but if you look at patric g's mod list he says what pre load he run's the r's at and i would do the same.
But for me it is the caddie's with a .090 preload i think.
But for me it is the caddie's with a .090 preload i think.