5.3 Block, How big can I go?
5.3 Block, How big can I go? I got a 5.3 short block that needs a rebuild, what can I do with it? <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Re: 5.3 Block, How big can I go? I was wondering on the bore size and how big I could bore it? It will be a high compression spray motor. What are the specs, and what are the differences between a 5.3 and a 6.0 block? Thanks.
TECH Resident
Joined: Dec 2001
Posts: 918
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From: Baton Rouge, LA
Re: 5.3 Block, How big can I go? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 99GMC Can:
<strong>Install 6.0L Pistons with 4.8 crank
7500RPM!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">HUH????
I hope you mean bore it to 4.00 and destroke it with the 4.8 crank.
If that's not what you meant then the 6.0L pistons won't fit and if you throw the 4.8L crank into the 5.3L, then you get a 4.8L..... <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
<strong>Install 6.0L Pistons with 4.8 crank
7500RPM!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">HUH????
I hope you mean bore it to 4.00 and destroke it with the 4.8 crank.
If that's not what you meant then the 6.0L pistons won't fit and if you throw the 4.8L crank into the 5.3L, then you get a 4.8L..... <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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Re: 5.3 Block, How big can I go? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 99GMC Can:
<strong>Install 6.0L Pistons with 4.8 crank
7500RPM!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Can't do that without a longer rod.
and hope the deck height compression height with the new rod all lines up.
<strong>Install 6.0L Pistons with 4.8 crank
7500RPM!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Can't do that without a longer rod.
and hope the deck height compression height with the new rod all lines up.
Launching!
Joined: Jan 2002
Posts: 252
Likes: 0
From: ONTARIO/CANADA
Re: 5.3 Block, How big can I go? The max you can go on the 5.3 block is 3.910 +-.005. We have sonic tested many and this about where you want to be bore wise. The cheapest combo is a 6.0 crank with 5.7 rods and pistons to make a 5.7. Call Barry or Wade at the shop and they prob. have some stuff around for a good price. The max stroke you can go is 4.125 which will yield 396 inches with the 3.905 bore. Hope this helps. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Re: 5.3 Block, How big can I go? Yeah...well.....if you're gonna make more power....than so am I. <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
