b20forlife

iTrader: (4)

Hey everyone I want to put forged internals in my budget 5.3 build. I did search but found nothing conclusive. I know the ls1 has the same stroke. So will they bolt up to my 5.3 crank. I was thinking of buying some eagle rods since they are only 270 shipped for an ls1 motor. The stroke is 6.100 right. My goal os about 800 whp through my powerglide and a mp t76. Thanks again

Gordon0652

iTrader: (4)

Don't want to drop the bomb but you said "budget 5.3 build" and "800whp" That deff does not go togather at all! Forged 5.3 taken to 800whp = lots of $$$$$ Almost better off with a 408.

b20forlife

iTrader: (4)

Well I seen people make 600whp on stock 5.3 so I was thinking if I forged up the bottom end and some 317 heads with springs and retainers and a custom cam it would be doable. By budget i ment like not going all out on the best parts

skinnies

iTrader: (33)

Just buy an L33 and use the stock rods then add some forged pistons.

b20forlife

iTrader: (4)

Why use an l33 motor? isn't it an aluminum block and don't I want an iron block for turbo? Are the l33 engine rods tougher than the other 5.3 rods?

JAX04

iTrader: (17)

h.......mmmmmm

b20forlife

iTrader: (4)

So does anyone know if forged ls1 rods fit a 5.3?

b20forlife

iTrader: (4)

So does anyone know if forged ls1 rods fit a 5.3?

ChiTownHustler

iTrader: (3)

Aside from the 4.8 V8 LS engine all LS series engines have the same rod length (6.098") from the factory 5.3, 5.7 & 6.0 L engines. Most aftermarket forged rods are 6.125", but some like SCAT are 6.100" for stock replacement pistons

one fast zo6

iTrader: (490)

yes they do. you can also bore the block and use 5.7 pistons. GL

b20forlife

iTrader: (4)

Thank you guys. Ok i will look for 6.1 rods. And about the pistons I know about them. I'm going to try to buy a set of stock bore ls1

b20forlife

iTrader: (4)

Will the 6.125 rods fit the 5.3

chevybowtie

iTrader: (16)

I used LS2 rods which are a little beefier then the original 5.3 rods.

skinnies

iTrader: (33)

They should be the same as the l33 rods.

b20forlife

iTrader: (4)

So what kind of power will the l33 rods hold up. Cause i found a lm7 for 450 and a l33 for 1100. Just wondering if its cost effective to go with the l33 and just add some pistons and rod bolts

ttranssam

iTrader: (10)

Well for me my motor is being built now and with mahle pistons scat h beam and arp bolts and all block machining its costing me a total of 2331.27. Iam so freaking happy now my motor dont suck....

b20forlife

iTrader: (4)

Does that include the motor? Cause I can put my own motor together. And were i live its 15 bucks per cylinder to bore so that's all the machinening I would need. But what size rods you have. There is a overwelming amount of 6.125 rods but will those work with with a lm7 that comes with the 6.098 rods I belive

Fb0dy0nly

iTrader: (10)

Would 0.027 over be too big really?

b20forlife

iTrader: (4)

O know it don't seem like alot but just trying o make sure before I buy

hellbents10

iTrader: (10)

Rod length is going to depend on stroke and piston compression height. Yes you can put 6.125 rods in a 5.3l Wiesco makes a shelf 5.3l piston for this and a 4" stroke too. They also make a forged 5.3l piston for a stock size rod.