boreing a 5.3
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Staging Lane
Joined: Feb 2008
Posts: 99
Likes: 0
From: baltimore ohio
boreing a 5.3 im going to use the stock heads BUT Texas speed is going to P&P them. so with me boreing out the 5.3 with stock size heads how much can i bore the block? and do i use head gaskets off something like a 6.0?
On The Tree
Joined: Jul 2008
Posts: 128
Likes: 2
From: Stockett, Montana
speed pro makes replacement pistons for the 4.8/5.3 that are hung on stock rods and used with stock crank and are around 400$ with rings.
.060 over 5.3 with 4.8 flat tops will make for high compression 5.5 engine.
build with a 22x-230 cam and some 241 or 243 heads and with supporting bolt ons and tune and has the capacity to make 450+bhp engine.
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Staging Lane
Joined: Dec 2001
Posts: 60
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From: San Antonio, Texas
NemeSS,
I see you're in Houston. I'm in San Antonio and I am having a hard time finding a 5.3 to start working on. Do you know of anything for sale in Houston? I would be interested in a bare block or even a full engine. I'm just trying to find SOMETHING.
Thanks!
John
I see you're in Houston. I'm in San Antonio and I am having a hard time finding a 5.3 to start working on. Do you know of anything for sale in Houston? I would be interested in a bare block or even a full engine. I'm just trying to find SOMETHING.
Thanks!
John
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On The Tree
Joined: Jul 2008
Posts: 128
Likes: 2
From: Stockett, Montana
I really didn't mean to say that I wanted to go to 5.7, I just meant that I would like to go as far as is safe for the iron 5.3 block. The only reason I want to do something with this block is that it only has 28,000 miles on it, and it's payed for. I like the idea of a 383 out of a 5.3. No one would ever know it isn't a stock displacment 5.3! My 5.3 with ported stock heads, and 230 @ .050/ 544 lift Lunati cam, and 750 QFT carb made 486 on motor, and 615 on N2O. So much potential out of such a small motor, I love it. You would never have made those kinds of numbers with an old style 327 without puting some major money into it.
On a side note does this apply to an iron block 5.3 as well? I have a local guy here with an carburated iron block 5.3 in a Mustang. Claims of course it's a stock bottom end he is spraying this motor. This guy has been on Pinks all out and money races so he's trying to bullshit the wrong guy LOL. I was just wondering how much cubic inch could be had from an iron block 5.3
On The Tree
Joined: Jul 2008
Posts: 128
Likes: 2
From: Stockett, Montana
On a side note does this apply to an iron block 5.3 as well? I have a local guy here with an carburated iron block 5.3 in a Mustang. Claims of course it's a stock bottom end he is spraying this motor. This guy has been on Pinks all out and money races so he's trying to bullshit the wrong guy LOL. I was just wondering how much cubic inch could be had from an iron block 5.3
On a side note does this apply to an iron block 5.3 as well? I have a local guy here with an carburated iron block 5.3 in a Mustang. Claims of course it's a stock bottom end he is spraying this motor. This guy has been on Pinks all out and money races so he's trying to bullshit the wrong guy LOL. I was just wondering how much cubic inch could be had from an iron block 5.3
3.9 bore with stock crank = 347
3.9 bore with 4.00 stroke =383
so he could be running a 383 or 347 disguised as 4.8/5.3 and taking everybodys $
but then again if its a in correctly setup fox with susp. and has been lightened. it possible hes on stock bottom end with a strong dose.
but if hes yankin em n/a, i would suspect hes not telling the truth about a stock 5.3 bottom end
TECH Fanatic
iTrader: (37)
Joined: May 2008
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From: ocala,fl--- forest-ocklawaha
and he could have it resleeved, and be over 400+ ci ,, but thats money to do that.. never kno tho,, my bet is he has stock crank and forged rods and forged 5.7 pistons 3.9 bore.. .and is spraying a heavy dose.. i would run that combo in my car..
although if the guy is hustling, it would make sense. but again if the car is leaving too hard n/a, no way its a claimed 5.3 bottom end
On The Tree
Joined: Jul 2008
Posts: 128
Likes: 2
From: Stockett, Montana
Hey NemeSS, just checked out your website, holy ****, looks like some nasty ****!!! I've seen your thread posts on here many times and just noticed your web link today. I'll keep you in mind for questions in the future.
