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Generation III Internal Engine
1997-2006 LS1 | LS6
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Old 10-09-2002, 09:31 AM   #1
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Default Pat Musi - 383 LS1

Did anyone see the article in the Winter 2002 Hot Rod publication, ENGINES?

It has a Pat Musi built 383 LS1 article.

He left most of the engine stock!
Some minor port polishing of the heads, new drop-in valves, new cam and Luniti rotating essembly

...power is about 440HP
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Old 10-09-2002, 09:42 AM   #2
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Default Re: Pat Musi - 383 LS1

Pat Musi typically quotes his HP at the crank, not at the rear wheels (RWHP). 440hp = about 385-390 rwhp.

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Old 10-09-2002, 11:01 AM   #3
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Default Re: Pat Musi - 383 LS1

I don't like the Car Rags for tech article but I bought the issue in question for that particular article. As far as the heads just having "drop in valves" well think again. Look at the ports they have had quite a bit of material removed. I was not impressed, but I would have like to have seen a dyno sheet with the juice on.
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Old 10-09-2002, 11:10 AM   #4
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Default Re: Pat Musi - 383 LS1

I think I am the only person with this engine. No one else I have ever come across has the Pat Musi 383 LS1. I am putting down 430RWHP with this engine and there is still a lot to go. I need to get some wideband O2 dyno tuning to free up my hidden horses. Let me know if you want to know anymore details about this engine. I had it built almost 2 and a half years ago so today's heads are probably lightyears ahead. Oh well, what can you do...that's the price you pay for being one of the first strokers on the block!

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Old 10-09-2002, 11:53 AM   #5
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Default Re: Pat Musi - 383 LS1

99WHITESS If it wouldn't be to much to ask, can you e mail me or post the basics on crank, rods, pistons, cam and heads? fukawe@hotmail.com TIA
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Old 10-09-2002, 04:32 PM   #6
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Default Re: Pat Musi - 383 LS1

CAT3 - hehe, military guy, huh...sure, no problem, I'll get those to your email address soon. Just gotta dig up that info.

383ss - I think I could put down another 15-20RWHP with the right cam. I am running an EXTREMEMLY small cam for the 383 (218/227) and it just isn't pulling it's wieght. I would like to go to the X1 but don't have the time or money right now. Soon, hopefully.

-Kris
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Old 10-09-2002, 04:36 PM   #7
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Default Re: Pat Musi - 383 LS1

Oh, and the dyno sheet from my engine with the juice on (100 shot) was absolutely magnificent. With that cam, the 218/227, the nawwwwwws (hehe) was a beautiful thing, the car put down almost 600RWHP on that pull. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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Old 10-09-2002, 05:13 PM   #8
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Default Re: Pat Musi - 383 LS1

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 99WhiteSS:
<strong>CAT3 - hehe, military guy, huh...sure, no problem, I'll get those to your email address soon. Just gotta dig up that info.

383ss - I think I could put down another 15-20RWHP with the right cam. I am running an EXTREMEMLY small cam for the 383 (218/227) and it just isn't pulling it's wieght. I would like to go to the X1 but don't have the time or money right now. Soon, hopefully.

-Kris</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">damn, I thought my old cam was small <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

just for reference I put down 448rwhp 439rwtq with a 224/224 .539 114lsa cam.

my new cam is 236/232 .602 .575 112lsa.
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Old 10-10-2002, 01:18 AM   #9
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Default Re: Pat Musi - 383 LS1

I was one of the first also and with just a cam and header swap I'm putting out 456 rwhp 435 rwtq UNTUNED!!! My heads were hand ported by a local guy 2.5 years ago (project 382 was started 3.5 years ago) and cost me just $800!!! not bad, I guess...
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previously... 383 11:1; 10.75 @ 127, 1.47 60' 3450lbs
up in flames... 408 12.85:1, M6 10.52 @ 130 1.42; 10.12 @ 137 on a 100 shot. 3469 lbs

Silverado SS - 14.20 @ 93.1 2.08 60' SOLD

2011 Camaro 2SS, Auto
1985 IROC 305 Auto
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Old 10-10-2002, 06:37 PM   #10
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Default Re: Pat Musi - 383 LS1

I can't find this article, exactly what magazine is this in? No luck at Waldenbooks, and B&N is 50 miles away....fark that.
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Old 10-11-2002, 08:42 AM   #11
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Default Re: Pat Musi - 383 LS1

383ss,

What is idle like? As you know i have the X1 cam and it is putting 450 rwhp and 446 rwtq. It idles very smoth! But my exhaust is loud.
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Old 10-12-2002, 01:29 AM   #12
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Default Re: Pat Musi - 383 LS1

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by RUF SS:
<strong>383ss,

What is idle like? As you know i have the X1 cam and it is putting 450 rwhp and 446 rwtq. It idles very smoth! But my exhaust is loud.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">my old 224/224 idle'd about like stock. I guess it was kind of a "sleeper"
my new 236/232 has a nice lope to it and still idles fine at 850 or so.
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previously... 383 11:1; 10.75 @ 127, 1.47 60' 3450lbs
up in flames... 408 12.85:1, M6 10.52 @ 130 1.42; 10.12 @ 137 on a 100 shot. 3469 lbs

Silverado SS - 14.20 @ 93.1 2.08 60' SOLD

2011 Camaro 2SS, Auto
1985 IROC 305 Auto
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Old 10-12-2002, 01:29 AM
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