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- - LS 5.3 Stroker??? (https://67-72chevytrucks.com/vboard/showthread.php?t=609565)

papsoldblue72

12-27-2013 11:18 PM

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...

WIDE LOAD C-30

12-27-2013 11:43 PM

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.

storm9c1

12-28-2013 02:31 AM

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).

papsoldblue72

12-28-2013 10:58 AM

Re: LS 5.3 Stroker???

Quote:

Originally Posted by storm9c1 (Post 6437942)

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??

tinydb84

12-28-2013 05:53 PM

Re: LS 5.3 Stroker???

http://www.truckinweb.com/tech/engin...d/viewall.html

crazy longhorn

12-28-2013 06:48 PM

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

71K20chevy

12-28-2013 07:05 PM

Re: LS 5.3 Stroker???

Or, better yet, a bored/stroked 6.0 :metal:

crazy longhorn

12-28-2013 07:41 PM

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.:chevy: Longhorn

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