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Has anyone had a 5.3 resleeved to anything bigger than a 6.0? I have searched for builds but come up with jack. I emailed ERS to verify how large of a sleeve they can go on a 5.3 just waiting to hear back.

Ill buy an ebay block to send them if I knew what gen was preferred. Can you have a 4.000 stroke on a 5.3?

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I think this is not possible from the searches in the ls4 section

Bo185

Why not just get a iron block and bore it to 4.00 and have a 6.0L then stroke to 4.00 and have a 402ci motor. Or just buy a 6.00L bore it .030 over. You'll spend away more resleeving and AL block 5.3L vs buying a LS2 or Gen IV 6.0/6.2L block.

EDIT: ahh LS4 yeah your pretty much out of luck. But you can still stroke it to 4.00''

All LS motors are the same stroke save for the 4.8L and LS7 and the 4.8/5.3 share blocks so you can stroke them 4.00'' no problem.

BigRich954RR

iTrader: (1)

A sleeved block will always be stronger and better if done right but they cost alot more

redtan

iTrader: (5)

Are LS4 blocks that different than any other 5.3 that it can't be sleeved?

KCS

iTrader: (20)

You can get the MID sleeves and get up to 460+ cubic inches.

SUPERBOOST

iTrader: (11)

What is the approximate cost of resleeving an aluminum ls block?

KCS

iTrader: (20)

Call Steve at RED or the guys at ERL, they can get you lined out as far as pricing goes. Right now, I think Darton is having trouble supplying the sleeves, but they can definitely give you other options if need be.

Bo185

Naww, I was talking about it being a FWD app and an iron block not working with it, IE swapping in an iron block vs resleeving the 5.3L AL block. But resleeving it is best bet.

longcut

Still waiting to hear back from ERL but on the website the cost for resleeving a block looks around 1000$

So if it is possible to get say 4.125 bore with a 4.10 stroke you basically have a stronger than stock LS7 block for 1000$ + 5.3 core.

Average price for a 5.3 core around Midwest is 200- 300$
Plus you have a lightweight aluminum block that is ready to be force fed.

Keep in mind this is just a theory and Im a newbie looking for the best way to get an aluminum LS7 displacement block.

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With a gm employee discount an LS7 block from GMPP is still 3k

I have not priced any of the rotating assembly and I'm sure it's not a cheap build but $/ displacement for a fresh block, in theory it deserves a look right?

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Steve at RED say they can resleeving a 5.3 to a 4.185 bore and dry sleeves run about 1900$ and not recommended for street.

I didn't price wet sleeves but he said they were a lot more $. So it is possible but $/ displacement is not as good as I thought.

koolrayz

iTrader: (26)

ERL recomends only using the 4th gen blocks for sleeving.
You need to get through and ERL will discuss there recomendations. ERL uses the 5.3 blocks all the time.

Bo185

Is this for a FWD application??? If so the LS1/2 LS7 block will not work with out an adapter for the transverse transmissions hence the LS4.

DavidGXP

iTrader: (14)

I would be willing to spend 2k for a wet sleeved 5.3 ls4. Keep this thread going.

My best et is 12.55@113.12
2.0-60ft With a pat g cam, tfs heads, shorty headers, and ls6 intake.

DavidGXP

iTrader: (14)

I just spent 2500 on heads and picked up 35hp. I am sure that a larger bore would give me more then 35hp.

koolrayz

iTrader: (26)

Ill bet you would but you wont get a wet sleeve anywhere for that.

longcut

I'm still new and learning but what is different internally from and ls4 ans a truck 5.3? I don't see resleeving and stroke change having anything to do with xverse mounting.

I don't have a trans mount, Im building for a swap into my 73. A GXP guy will have a lot of work prepping the rest of the drive train for that much beaf but Its still possible right?

Bo185

There is no differance internally basically.

The LS4 is a transversely mounted motor IE (SIDEWAYS MOUNTED) It uses a little shorter block and a 60* bellhouse vs the 90* bellhouse mount pattern of the regular LS and truck motors.

A 73 what????

I suspect you mounting the motor longitudinally (FRONT TO BACK). If so just buy a LS2 6.0L block or a LS3 6.2L block and stroke it!!! There are 5.3L aluminum regular longitudinally mounted motors as well.

longcut

73 Camaro, I think it says below my name. Regardless of price the ERL and RED use Darton Sleeves made of ductile iron. They are stronger than Iron Blocks and twice as strong as stock aluminum sleeves. I think I read it in this link somewhere.

http://erlperformance.com/images/sto...eve_design.pdf

So if your looking for increased displacement, with a cap on how much horse power you can build then a 6.0 or 6.2 Is great but I want a sleeved block with a high displacement and the sky is the limit.

I have dreams about a 1200 hp TT 73 Camaro. Ill never get there on stock sleeves. If so it wont last long. The best quote people say on this forum, "If you build it right the first time its better than building it twice".

So if I spend the money on a sleeved block I have the absolute best start and its not enough money to get my wife twisted. 6.0 and 6.2 aluminum blocks on Ebay are still over 2k. I don't see the value for something that will end up being a core.

This is the thread that led me to this conclusion

https://ls1tech.com/forums/generatio...ng-needed.html