AES Racing

iTrader: (6)

Boost 5.3 shortblock $2599

add.

I have 317 heads,
Hand ported, milled, 5 angle valve job, patriot dual springs, stainless valves.

Comp Cam, cam plate, JP Double Row timing set, LS7 lifters, lifter buckets, GM MLS gaskets, ARP head bolts.

Total comes to $4492, longblock

Slowmo_Bird94

Is there any sort of warranty? I know it is iffy when someone else finishes the job, but I am curious.

BottleFedZ346

iTrader: (17)

Wow not bad at all!

N2OBaby

The more I look at this thread the better it looks.

Are 3.8,3.825,or 3.9 inch forged cranks available?

LS1LT1CAM

any more compression possible

might make a great motor for a turbo combo in the lsx real street class

how much off if I supply a l33 crank and block

AES Racing

iTrader: (6)

Forged crankshaft is available, however you might as well get a 390 if you want a forged crankshaft my .02

It would be a custom piston to use a larger stroke in 5.3, cost would get out of control.

$2375 if you supply block/crank

price doesn't include any tax

We warranty 90 days on the workmanship and yes you explained it, I don't have control over many variables, basically if you get the motor and say your not happy with something, we can work it out.

N2OBaby

"Forged crankshaft is available, however you might as well get a 390 if you want a forged crankshaft my .02

It would be a custom piston to use a larger stroke in 5.3, cost would get out of control." AES Racing

Thank you for your honest assessment.

projectcam

iTrader: (12)

Have you Sonic tested the cylinder walls on the 5.3 iron block and compared it to the 6.0? I was going to have it done a while back just never actually did.

AES Racing

iTrader: (6)

Checked 5.3 block at factory bore size I get .215-.220" 360º on the bore (3.780" bore size)

6.0 block I normally see .220" on thrust down to .175" at 3 O'clock on the bore location wise (when bored to 4.030")

projectcam

iTrader: (12)

With those numbers the 5.3 block can be punched out to 3.905 without any problems. There is a guy on TurboForums with a turbo Nova that did it and made over 1k to the tires with a 5.3 block/All pro heads and Arp standard sized studs(Bottom end/ Heads). Condsidering people throw those blocks away around here I am suprised more people haven't thrown these together more often. Thanks for the valuable Info!

projectcam

iTrader: (12)

http://www.theturboforums.com/smf/in...topic=103675.0

pwrtrip75

iTrader: (8)

If you own a machine shop it might be worth it... but for most people the cost of boring it and stuff you'd be right at the cost of a 6.0 which is bigger. I was just looking into this also. from a 5.3 to a 5.7 it is 21ci ? not worth all the machine work, and if you're going through that much to gain cubes....get a 6.0

projectcam

iTrader: (12)

Thats not why someone would use a 5.3, how many 4inch bore motors you see out there making 1200rwhp without o-rings/1/2 inch studs? There is alot of meat on the deck of the 5.3, that and the fact its iron combined with an aftermarket deck head worked well.

Ericmck2000

What the added price for upgrading to a 6.0?

AES Racing

iTrader: (6)

Starting at $3390

Lot to read in this thread

https://ls1tech.com/forums/forced-in...rankshaft.html

Ericmck2000

Mmm
Thanks!

cjmatt

iTrader: (4)

what about a plain 6.0 though, not a stroker

AES Racing

iTrader: (6)

370ci $2999 + shipping
CP Pistons -13cc dish
NPR stainless steel top ring set, napier 2nd ring
Eagle H beam rods (arp bolts)
Clevite bearings
6.0 block /crankshaft machined to blueprint and balanced

cjmatt

iTrader: (4)

And I can supply my own block & crank?

N2OBaby

That 3.83 bore 5.3L sounds like an awesome engine to build for FI.

Wonder what it would do with a pair of GT-35's ot Precision TA-5557's?