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Old 12-27-2013, 11:18 PM   #1
papsoldblue72
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LS 5.3 Stroker???

Does anyone know if there is a rotating assembly you can buy to make a 5.3 into a 5.7 ??? the 5.3 I got has a broken crank shaft...
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Old 12-27-2013, 11:43 PM   #2
WIDE LOAD C-30
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Re: LS 5.3 Stroker???

A 5.3 has the same crank as a 5.7.
You can bore a 5.3 out to a 5.7.
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Old 12-28-2013, 02:31 AM   #3
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Re: LS 5.3 Stroker???

Yes, a 4.00" stroke crank is available. Lots of guys make 383s with them (and no, I'm not confusing it with a SBC of the same displacement).
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Old 12-28-2013, 10:58 AM   #4
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Re: LS 5.3 Stroker???

Quote:
Originally Posted by storm9c1 View Post
Yes, a 4.00" stroke crank is available. Lots of guys make 383s with them (and no, I'm not confusing it with a SBC of the same displacement).
Where can I find these kits??
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Old 12-28-2013, 05:53 PM   #5
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Re: LS 5.3 Stroker???

http://www.truckinweb.com/tech/engin...d/viewall.html
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Old 12-28-2013, 06:48 PM   #6
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Re: LS 5.3 Stroker???

Just my thoughts....you might think about a 6 .0, vs the boring & stroking (dollar wise)? The 6.0, will make 370 cubes, on a .030 overbore, & handle larger valves, for the power upstairs Longhorn
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Old 12-28-2013, 07:05 PM   #7
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Re: LS 5.3 Stroker???

Or, better yet, a bored/stroked 6.0
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Old 12-28-2013, 07:41 PM   #8
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Re: LS 5.3 Stroker???

Yes, bigger is better You can poke any 4.8 or 5.3 block 3 mm (LS1, 5.7 bore spec). Mucho money on the bore, & the stroker parts are expensive! I have to agree...if you want to play, poke & stroke the big one. Longhorn
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