04 5.3L Connecting rods.

KSrenegade316

New member
Joined
Sep 27, 2016
Messages
3
Reaction score
0
Points
0
Okay, so after many hours of looking online and coming up short, i have narrowed it down to this. Everything i have read states that my connecting rod length center to center is 6.098".

The only rods i can find in this size are in the upwards of $700-$1000 and i can only find a few manufacturer's that make this length. However rod's that are 6.125" long are offered by many manufacturer's and are half the cost.
I'm not looking to build the fastest 5.3l out there, i just need new rods that will work with the OEM replacement pistons that i already have so i can finish my rebuild.


My question is this. Can i get away with running OEM size pistons (part # Enginetech P30798, off of rock auto, 1.327" CH) with the slightly longer rod, and not smack the pistons into the valves.

Truck is a 2004 Chevrolet Suburban 5.3L V8, flex vin (Z), with 706 heads and long tubes.

this is a link to the rebuild kit, and the crankshaft i am using. If this combination will not work, any suggestions on what piston and rod combination to run is greatly appreciated


http://www.rockauto.com/en/moreinfo.php?pk=5966490&cc=1424191&jsn=482

http://www.rockauto.com/en/moreinfo.php?pk=5965149&cc=1424191&jsn=507
 

Attachments

  • 14045566_1230364313674892_506965069626449351_n.webp
    14045566_1230364313674892_506965069626449351_n.webp
    89.2 KB · Views: 57
  • 13567286_1197123250332332_5100288925006557967_n.webp
    13567286_1197123250332332_5100288925006557967_n.webp
    107.2 KB · Views: 59
why are you replacing all the rods, the machine shop cannt check them for you to determine if they can be reused?

summit has the 6.098 length for $666.04

if you read the fine print for the 6.125 it states custom pistons required
 
why are you replacing all the rods, the machine shop cannt check them for you to determine if they can be reused?

summit has the 6.098 length for $666.04

if you read the fine print for the 6.125 it states custom pistons required

Well for one, in a momentary lapse of judgement I forgot to label which rod came out of which cylinder (it was a long day, I know I messed up pretty bad) Also, I would like to have everything new since the only part I did not replace in this rebuild was the block itself. everything else is brand new.
 
why are you replacing all the rods, the machine shop cannt check them for you to determine if they can be reused?

summit has the 6.098 length for $666.04

if you read the fine print for the 6.125 it states custom pistons required

Is the crank non-stock stroke?[/QUOTE]

SO. I just got off the phone with a representative at summit racing. I was directed to a set of 6.1 C-C rods (Factory is 6.098) and a set of flat top pistons, which should provide the clearance I need on the heads, and at the same time boost my compression ratio
(The long tube headers I have should help as well?) here are links to them. it was explained to me in jibberish, but he re-assured me a couple times that this will work with a factory crank and heads. Thoughts?

https://www.summitracing.com/parts/esp-6100m3d
https://www.summitracing.com/parts/slp-h1132cpa
 
Back
Top