AES Boost 5.3 shortblock $2599
Teching In
Joined: Mar 2007
Posts: 28
Likes: 0
5.3 im building 5.3 - boring it to 3.89 using MAHLE pistons and scat rods and stock crank ----im using 2 precision 5557 turbos -- i got the entire 5.3 coils acces and all for $350 and rods and pistons for $715.00 -- bought the pistons used but never used still in plastic and rods new ---im going to pump 15 pounds of boost and hopefully push my stock weight gn into the 9s --- the engine will be in the machine shop next week to get cleaned and bored
im building 5.3 - boring it to 3.89 using MAHLE pistons and scat rods and stock crank ----im using 2 precision 5557 turbos -- i got the entire 5.3 coils acces and all for $350 and rods and pistons for $715.00 -- bought the pistons used but never used still in plastic and rods new ---im going to pump 15 pounds of boost and hopefully push my stock weight gn into the 9s --- the engine will be in the machine shop next week to get cleaned and bored
bringing this back to life to ask Frasher 2 questions...
is this still a valid price on this shortblock?
and what would the cost be to bore the 5.3L block to a 3.90 bore and do the shortblock that way?
is this still a valid price on this shortblock?
and what would the cost be to bore the 5.3L block to a 3.90 bore and do the shortblock that way?
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Will this short block support 800-900hp or would it need additional options to handle that kind of hp? I wouldn't be worried about a stock crank, but the rod bolts and rods may be a problem?
have you read ANY of the threads in the FI section. They are supporting that stock for quite a while, much less forged by a major sponsor!
Go for it!
I think it could support 800-900 but I think you won't get them to rate that high. Too many variables on making it run safely. You need good gaskets a thicker deck head and a good tune. And it all depends on your combination that you add to this.
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! 
TECH Enthusiast
Joined: Sep 2010
Posts: 580
Likes: 0
From: North Central Ohio
This 3.83" bore block Fraser is talking about will make you a 333" engine. I don't see 13 cubic inches being worth the loss of some wall strength in a forced induction motor. If you feel like you are missing some power with the smaller motor you can turn up the boost since the thicker cylinder walls will take it!!
Fraser, Im going to have to give you a call soon. I have been set on your 390 for a while for my upcoming build. But now with talk of this 5.3 and the option for a 370 im overloaded with great choices! I will give you a shout for guidance based off of my needs.
Registered User
Joined: Jan 2017
Posts: 1
Likes: 0
Interested [QUOTE=AES Racing;14379302]I've had many contact me for 5.3 boost shortblock, I listen and here we go.
$2599
Compression ratio using GM MLS gasket
w/ 60cc chamber 10:1
w/ 64cc chamber 9.6:1
w/ 66cc chamber 9.4:1
w/ 68cc chamber 9.2:1
w/ 70cc chamber 9:1
Upgrades,
Scat H beam rods +$100
Total Seal AP top ring +$100
ARP main studs +$188
Aluminum 5.3 block +$200
let me know if you have any questions
Frase
is this shortblock still available? If so how do i order?
- Diamond piston 3.830" bore, -5cc inv. dome dish
- Total Seal ring set
- Scat I beam rods, 4340 forged, ARP bolts
- Factory crankshaft polished and balanced
- Clevite bearings, durabond cam bearings
- 5.3 iron block machined and assembled
$2599
Compression ratio using GM MLS gasket
w/ 60cc chamber 10:1
w/ 64cc chamber 9.6:1
w/ 66cc chamber 9.4:1
w/ 68cc chamber 9.2:1
w/ 70cc chamber 9:1
Upgrades,
Scat H beam rods +$100
Total Seal AP top ring +$100
ARP main studs +$188
Aluminum 5.3 block +$200
let me know if you have any questions
Frase
is this shortblock still available? If so how do i order?