cam swap?
#1
Staging Lane
Thread Starter
Join Date: Sep 2008
Location: Claxton, GA
Posts: 76
Likes: 0
Received 0 Likes
on
0 Posts
cam swap?
Hey im installing a ls6 cam into my 2000 5.3 silverado. I heard i need to replace the pushrods with longer ones and add new springs. Is this true and do you have any recommendations?
#3
PT's Slowest Truck
iTrader: (19)
The LS6 cam has a .050 smaller base circle than stock, so optimally a longer pr would be in order, but members here have proven time and time again that your stock pr's will suffice. If upgrading to a hardened pushrod anyway, then I'd go for some 7.425's, but if trying to maintain a budget, you can get by with the stockers. As for springs, LS6 springs work perfectly with the LS6 cam and can be had on the cheap from one of our sponsors such as Texas Speed or SDPC (Scoggin Dickey)
#4
11 Second Truck Club
iTrader: (5)
Join Date: Sep 2005
Location: Kansas
Posts: 1,339
Likes: 0
Received 0 Likes
on
0 Posts
I wouldn't be scared of ls6 springs, a lot of guys use them even when using cams with faster ramp rates. But I would spend the money on push rods, people have used the stockers, but you have to keep in mind that you are changing lifter preload and valve train geometry. The correct valve train geometry can make a difference is life expectancy of lifters and in the ability of valve train to work properly in the higher RPM's that you are trying to achieve with the ZO6 cam. You also will not achieve full lift potential of the cam without the proper push rod. I'm sure if GM thought it was OK to use the stock length push rods they would not have gone to the expense to make different ones.
Last edited by MPFD; 04-07-2010 at 09:24 AM.
#5
PT's Slowest Truck
iTrader: (19)
Actually the GM pushrods are the same length, but the LS6 has longer valves If it were me, I'd run the longer pushrods, but sometimes times are tight and it's good to know that there's more than one option. Not too mention, it's not too often that you hear of a lifter failing from too little preload...
#6
11 Second Truck Club
iTrader: (5)
Join Date: Sep 2005
Location: Kansas
Posts: 1,339
Likes: 0
Received 0 Likes
on
0 Posts
Actually the GM pushrods are the same length, but the LS6 has longer valves If it were me, I'd run the longer pushrods, but sometimes times are tight and it's good to know that there's more than one option. Not too mention, it's not too often that you hear of a lifter failing from too little preload...
Good point I thought about that after I posted.
Trending Topics
#8
i just got the ls6 cam yellow springs and the stock pushrods from the ls6 motor the cam was out of...
after reading this am i right in saying those pushrods are the same as my lq4 6.0l motor and i should get differnt ones?
after reading this am i right in saying those pushrods are the same as my lq4 6.0l motor and i should get differnt ones?
Thread
Thread Starter
Forum
Replies
Last Post
GrooveCityZ71
GM Engine & Exhaust Performance
7
08-31-2015 12:05 PM
GreyChevy
Tuning, Diagnostics, Electronics, and Wiring
1
07-07-2015 08:57 PM