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are these gen 4 rods in my 5.3? https://cimg7.ibsrv.net/gimg/ls1tech...f9a2f261cd.png 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?) |
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Not sure if what you have is gen 4. But here ya go. |
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 |
Originally Posted by fbody4everyone
(Post 19877010)
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 |
i know people are pushing 700+ wheel with their gen 4 motors but not sure about my gen 3, even tho it may have strong rods |
Even the gen 3 rods will hold power. 9 out of 10 on boost who blow up end up lifting the ring land. If they were gen 4 rods ( I can't tell from the pic, but I'm no expert), and you had a good set of pistons in it, it would hold a ton of power. |
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. |
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? |
Yes, those are gen 4 rods. |
Originally Posted by JoeNova
(Post 19877077)
Yes, those are gen 4 rods. |
Simple identifier, pimple on one side of rod. |
Originally Posted by fbody4everyone
(Post 19877097)
any difference with these pistons vs gen 4 pistons? next weakest link?
Originally Posted by tblentrprz
(Post 19877101)
Simple identifier, pimple on one side of rod. |
They both have bumps. Gen "4" rods are way beefier in the beam and big end. I have seen the beefy rods in both press fit and floating configuration. |
Gen 4 rods have 4 sharp corners on the caps and beams. Gen3 have a radius on 2 sides. |
thanks guys |
Originally Posted by Game ova
(Post 19877005)
Not sure if what you have is gen 4. But here ya go. https://youtu.be/oPGITRHQ_Bg |
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Originally Posted by helga203
(Post 19877393)
You have gen 3 or 4?? |
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. |
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