3rd vs 4th Gen Rods
05-23-2014, 02:08 PM
#22
Look for the LC9 motors. They are alum block/243 head/gen4 rods etc.. Picked my 2008 LC9 up with the harness for $500. You have to remove the DOD BS and possibly the variable valve timing. Most do away with that stuff when they buy a cam anyway. Don't discredit the 4.8's either. Noone wants them so they are usually cheap. Picked up an 06 for $600 as a spare.
I wouldn't let the absence of a 243 head effect your decision too much. From what I've seen lately you can make 700+ on the "crappy" truck 862's pretty easy. 317s are a good cheap alternative as well. I could have sold my 243's and they would have paid for my whole motor!
I wouldn't let the absence of a 243 head effect your decision too much. From what I've seen lately you can make 700+ on the "crappy" truck 862's pretty easy. 317s are a good cheap alternative as well. I could have sold my 243's and they would have paid for my whole motor!
05-23-2014, 03:15 PM
#23
I see this from time to time. I've heard of 3 LS2 engines breaking rods below 1000 HP. At the same time I've seen 3 different engines hit 1300 HP on gen 4 rods over and over and over and repeatedly beat on them without failures. It could've been heat related or excess low-end torque that did yours in.
05-23-2014, 04:35 PM
#24
Restricted User
Look for the LC9 motors. They are alum block/243 head/gen4 rods etc.. Picked my 2008 LC9 up with the harness for $500. You have to remove the DOD BS and possibly the variable valve timing. Most do away with that stuff when they buy a cam anyway. Don't discredit the 4.8's either. Noone wants them so they are usually cheap. Picked up an 06 for $600 as a spare.
I wouldn't let the absence of a 243 head effect your decision too much. From what I've seen lately you can make 700+ on the "crappy" truck 862's pretty easy. 317s are a good cheap alternative as well. I could have sold my 243's and they would have paid for my whole motor!
I wouldn't let the absence of a 243 head effect your decision too much. From what I've seen lately you can make 700+ on the "crappy" truck 862's pretty easy. 317s are a good cheap alternative as well. I could have sold my 243's and they would have paid for my whole motor!
Anyone know how much shipping is for a complete engine, lets say iron block? I'm sure somewhere out there is willing to ship.
By the way, here is yet another L33 pushing the bar. ~1250 HP on stock bottom end. Later on it eventually made 1412 HP @ 7800 RPM with stock block/rods/crank and aftermarket pistons on methanol.
https://www.youtube.com/watch?v=Awa2...ature=youtu.be
Last edited by JoeNova; 05-23-2014 at 04:46 PM.
05-23-2014, 04:53 PM
#25
I need to move out of Ohio I guess. According to car-part.com, the closest LC9s are both 30 miles away and they want $3400 each.
Anyone know how much shipping is for a complete engine, lets say iron block? I'm sure somewhere out there is willing to ship.
By the way, here is yet another L33 pushing the bar. ~1250 HP on stock bottom end. Later on it eventually made 1412 HP @ 7800 RPM with stock block/rods/crank and aftermarket pistons on methanol.
https://www.youtube.com/watch?v=Awa2...ature=youtu.be
Anyone know how much shipping is for a complete engine, lets say iron block? I'm sure somewhere out there is willing to ship.
By the way, here is yet another L33 pushing the bar. ~1250 HP on stock bottom end. Later on it eventually made 1412 HP @ 7800 RPM with stock block/rods/crank and aftermarket pistons on methanol.
https://www.youtube.com/watch?v=Awa2...ature=youtu.be
05-24-2014, 08:29 AM
#29
Restricted User
I already have an L33 for my Nova. Now I'm looking for something to pick up on the cheap to use in another build. 300 bucks is a lot cheaper than $1000.
05-24-2014, 12:54 PM
#31
Maybe it wasn't an LC9 as I was told. Not like the badging is stamped on the block. Was an 08 alum 5.3 anyway. DOD only.
Yes It had the DOD lifters. I used the lifters from my spar 4.8. Your L33 trumps all attitude makes no sense. IMO your better off with a newer engine. If you can get one cheaper it's a no brainer.
05-24-2014, 01:57 PM
#33
Maybe it wasn't an LC9 as I was told. Not like the badging is stamped on the block. Was an 08 alum 5.3 anyway. DOD only.
Yes It had the DOD lifters. I used the lifters from my spar 4.8. Your L33 trumps all attitude makes no sense. IMO your better off with a newer engine. If you can get one cheaper it's a no brainer.
Yes It had the DOD lifters. I used the lifters from my spar 4.8. Your L33 trumps all attitude makes no sense. IMO your better off with a newer engine. If you can get one cheaper it's a no brainer.
05-24-2014, 01:59 PM
#34
Restricted User
It has its benefits. Aluminum block 5.3, Gen 4 pistons/rods with Gen 3 electronics. No DoD/AFM. 799/243 heads and flat top pistons. Its a good combo out of the box.
However, a fourth gen 5.3 with aluminum block is just as good once the AFM/DoD is gone.
However, a fourth gen 5.3 with aluminum block is just as good once the AFM/DoD is gone.
05-25-2014, 06:26 PM
#36
I guess indiana has some good prices.
Buddy got two older 4.8s complete with harness no pcm for 500 at the pick n pull.
Got a newer iron 5.3 a few days later for 280 out the door.
Yeah you have to pull it yourself but they are a 1/4 of the cost.
Doesn't matter what year or size the motor is it's dirt cheap everyday haha.
Buddy got two older 4.8s complete with harness no pcm for 500 at the pick n pull.
Got a newer iron 5.3 a few days later for 280 out the door.
Yeah you have to pull it yourself but they are a 1/4 of the cost.
Doesn't matter what year or size the motor is it's dirt cheap everyday haha.
05-26-2014, 10:45 AM
#37
I pulled one of my rod/pistons out, looks like the gen 4-the rod end is bushed, wrist pin is pressed in the piston
if I can save the block's standard bore, I will reuse everything-I wanted to change the rod bolts, but the stock bolts have those sleeves in the rod cap
do new bolts not use the sleeves-the sleeve kind of stops the stock bolts from coming out
if I can save the block's standard bore, I will reuse everything-I wanted to change the rod bolts, but the stock bolts have those sleeves in the rod cap
do new bolts not use the sleeves-the sleeve kind of stops the stock bolts from coming out
01-14-2017, 02:15 PM
#38
yeah you just tug 'em out, but really, seriously just reuse the stock gen 4 bolts unless you're spinning it over 7k
I put arps in a motor what that was the cool thing to do. come to find out its a total waste of money. I should put the stock ones back in and sell the arps lol
I put arps in a motor what that was the cool thing to do. come to find out its a total waste of money. I should put the stock ones back in and sell the arps lol
01-14-2017, 02:17 PM
#39
hey I got a good one for you guys.
I have access to a "2004 5.3" (all the info I can glean from the guy)
It has the black crank sensor and the larger 13mm valley cover bolts.
What are the chances it has a 24x reluctor and gen 4 rods?
I snagged a six liter like that but it was from an '05 truck.
I have access to a "2004 5.3" (all the info I can glean from the guy)
It has the black crank sensor and the larger 13mm valley cover bolts.
What are the chances it has a 24x reluctor and gen 4 rods?
I snagged a six liter like that but it was from an '05 truck.
Last edited by truckdoug; 01-14-2017 at 02:19 PM. Reason: lol ancient thread revivalist
