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Probably for the 2,483,489th time, a 383 question

k5james

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What do you guys think the would be the most reliable hp/tq you could get out of a Gen 1 N/A 383? I'm trying to talk myself out of spending the money to do a Gen 3 6.0 swap.
 
Yeah, I was thinking somewhere around there. A stock LQ4 6.0 will have me around 390HP/420TQ plus I'll have the OD transmission and fuel injection. Decisions, decisions.
 
What Speed-O-Motive got from this kit:

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GMPP has complete 383 long blocks.
For a 383 I think it is kinda conservitive though.
If I was to go the 383 route I would look into getting a block and rotating assy from them.
Then add the heads,cam and intake I wanted to run.
New block and crank and all the machine work already done to it.
Just add yer goodies and drop it in.
 
Hmmm try www.gmpp.com.
www.summitracing.com sells the complete long block as well.
Or search for GM performance parts.
I believe any GM dealer can get the GMPP 383.
But I think their long block is kinda lame for a 383.
It does come with a roller cam but it is pretty mild.
To me it kinda defeats the purpose of having a roller cam with such a mild grind.
Personaly the only reason to have a roller cam is to take advantage of being able to use a radical grind unable to be accomplished with flat tappet lifters.
The couple of extra ponies is not worth the money involved with a roller set up to me.
When in a regular rig set up, is not gonna see above 5500 rpms that often anyway.
But that's just me.
For the price of a roller set up you can get another cam with a better grind and be way ahead of the game.
Playing the if I had the money game..
383 rotating assy frome GMPP
Rhoads cam
Ebrock RPM manifold
WP's Sportsman II heads
Q-jet to top it off.
Good bottem end (stock converter if in front of an auto) and good mid and top end.
I think that combo would give a nice fat and flat torque curve. Which in a heavy rig is what it's all about.
Build for torque... horsepower will take care of it's self.
 
That's not bad but what would I be looking at to have a shop do the machine/install work on my block? $1500? Then say some $1500 AFR heads, a nice cam $200-300, a BTO 700r4 a little over $3000 installed. Around $6500 and no fuel injection. Hmmmm.

I can get a 2004 LQ4/4L80E combo for $4500 w/ 10 miles and for roughly $5000 get it installed and tuned by a high end shop. This is going to be a tough decision.
 
Why pay someone to insatll it for you? Just do it yourself. I am sure there are plenty of members in your area that would posess the right kind of tools to help you out. I had a shop quote me 2800 when I lived in SOCAL to put my engine in and I told them to pack sand and done it myself. Just my .02 cents.
 
If it were me, I'd go with the 6.0!!! Those new engines run great, plus you get EFI and OD.... And you have the reliability of a factory GM engine.
 
I don't even want to attempt installing that LQ4/4L80E. I get headaches trying to work on the wiring for my stock engine. I'm the type that would rather pay to have a professional do it that way I have somebody to B*tch at if it doesn't work. B*tching at myself just isn't as much fun. /forums/images/graemlins/histerical.gif
 
[ QUOTE ]
That's not bad but what would I be looking at to have a shop do the machine/install work on my block? $1500? Then say some $1500 AFR heads, a nice cam $200-300, a BTO 700r4 a little over $3000 installed. Around $6500 and no fuel injection. Hmmmm.

I can get a 2004 LQ4/4L80E combo for $4500 w/ 10 miles and for roughly $5000 get it installed and tuned by a high end shop. This is going to be a tough decision.

[/ QUOTE ]

"Dude... you're stepping into LS1 country..."

Why is it everyone throws a [censored]-ton of money at a cast iron motor and aluminum heads and still run carburetion when they're in crate LS1 country.

Honestly... why? A simple cam swap and you go from 350/375 to 420/420. There's no reason to complain about the 300 ftlbs of torque just off idle either. Oh, and let's not forget the 175lbs you get off the front axle...

ls1.gif
 
Oh, you don't have to sell me on the Gen 3 small blocks. /forums/images/graemlins/eek.gif I've been dreaming of doing this swap in my Blazer but the wife gave me a beating about it and I'm trying to talk myself out of the swap. $ for $ though the LS family of engines are the best bang for the buck so I doubt that is going to happen.

PS Anyone have connections for shipping an engine and trans from Michigan to SoCal? The dealer I'm buying the combo from wants $500 to ship it and that seems kind of steep.
 
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