are these gen 4 rods in my 5.3?
04-14-2018, 01:10 PM
#1
TECH Apprentice
Thread Starter
Join Date: Oct 2014
Location: Iowa
Posts: 308
Likes: 0
Received 0 Likes
on
0 Posts
are these gen 4 rods in my 5.3? 
i believe these are gen 4 rods in my 2004 5.3. If not, correct me, but what would be the next weakest link? and what are my limits? (turboed)
(being a gen 3 motor i figured they didnt fully upgrade everything before the gen 4 motors were produced?)
04-14-2018, 01:30 PM
#4
TECH Apprentice
Thread Starter
Join Date: Oct 2014
Location: Iowa
Posts: 308
Likes: 0
Received 0 Likes
on
0 Posts
yea ive seen that lol, pretty sweet. just wondering what else i should worry about or does this mean i can turn up the boost without worrying too much. im at 11psi making over 500wheel right now
04-14-2018, 01:33 PM
#5
From what I've seen, as long as you aren't all in...early in the rpm... and the tune isn't crazy .... it will live and run good. I've personally never tried it though.
Trending Topics
04-14-2018, 01:40 PM
#8
This is regurgitated, but makes sense. Put the car on the dyno, find out where max torque is..... and leave the timing soft wherever that happens to be, ramp it in from there. I think people bend rods because the high timing feels good down low.... but they are asking a lot of the stock rods.
04-14-2018, 01:47 PM
#9
TECH Apprentice
Thread Starter
Join Date: Oct 2014
Location: Iowa
Posts: 308
Likes: 0
Received 0 Likes
on
0 Posts
i hope so, bought the motor pretty cheap thinkin it was gunna hold 500-600 safely. *tops* but helps the peace of mind knowing thatd they are gen 4 rods? anyone?
04-14-2018, 04:25 PM
#12
Simple identifier, pimple on one side of rod.
04-15-2018, 08:44 AM
#19
04-15-2018, 08:55 AM
#20
My 2003 5.3 has gen 4 rods as welll. I was shocked when I opened up the pan and tray. My guess is that it has pressed rods as I’m one of the bastard gen 3 engines with the gen 4 rods early on. Any way to tell if they are pressed or floating pistons without pulling one out? Maybe a part number on the piston? I could have been lied to about the year of the motor too tho.
To the OP, my gen 3 rods have been up to 12psi or about 600hp at the crank with no issues. The big difference between the rods is rpm, gen 3 are safe to 6500ish and gen 4 higher from what I’ve read.
To the OP, my gen 3 rods have been up to 12psi or about 600hp at the crank with no issues. The big difference between the rods is rpm, gen 3 are safe to 6500ish and gen 4 higher from what I’ve read.