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Discussion Starter #1
I have gone through so many different ideas, and so many half started projects, I really need a clean start.

Lets think about what I have and what I can do with them, and the direction I want to go in.

This is a brain storming session, so there is no stupid ideas

1.) I have a 1996 truck block with 4 bolt mains
2.) The OE roller lifters, spider and little retainers.
3.) AFR Hydra-Rev Kit
4.) Superflow 195cc heads, ported
5.) Ferrea comp 6000 2.02/1.6 valves
6.) GM Springs (.54 lift) +retainers+locks
7.) Titan Oil Pump
8.) Custom billet oil pan
9.) OE truck windage tray
10.) Holley 750 4150 DP carb, most of the way modified for blow through
11.) 2x Dellorto DHLA 40H carbs from a Lotus and the 4-barrell adapter
12.) Fluidampr
13.) LPE 213/219 cam
14.) 288(236)/300(248) .536/.536 with 1.6 ratio rockers 112 LSA 4 degrees of advance
15.) Weiand Xcelerator 7547 intake
16.) Chinese 2.5" ram horn knock offs
17.) Racepump 150psi pump and the matching regulator.


What I need to do is be able to cruise at 65mph at 2500 rpm with a keisler 5-speed with the racing .82 final gear and 3.73 rear gear.

383ci using my intake, heads, cam, ramhorns, my dellortos, and all the little surrounding parts. I will need to get some pistons made up, as I think I will need 7cc pistons. KB does make a set.

Lets hear some ideas.
 

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do you have a running car now? If so drive it.

you don't need a ton of hp to go out and have fun with your car, especially if you are interested in turning corners anyway.

If not put everything together and go. If i ever go with a manual tranny i want the one with the .5 final ratio. Then you can still have a performance rear gear and a good cruising rpm on highway.

but right now my car runs 3500 rpm on the hwy with 700r4 and 4.56 and i haven't worn the engine out yet. I might wear the rear end out though as the pinion is spinning 5000 rpm at hwy cruise.
 

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I think your fuel economy is going to suck, IMO, the 5 speed needs have a .6x overdrive final ratio....30% cut in engine speed.....I also feel 370 gearset is too wild, unless you have it allready, with the torque of a 383 you just don't need 373 gears, unless drag racing....I would go no wilder than 336 which is what I have, given a choice....not worth spend big bux over though.....Like the Gear vendors overdrive units I have heard of, I fail to see a .82 overdrive as worth anything mear 20% engine speed reduction wont hardly save jack......


I dunno much about that cam, it maybe ok with 10% more CI than my 355, but it seems a bit on the wild side....

I like DPFI, still have my TPI open runner setup...money...but the FI did double my fuel economy over the Qjet when I got the car 12 years ago...it was a muncie with 336 gears then too....

I dunno jack about those fancy carbs....
 

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Discussion Starter #4
do you have a running car now? If so drive it.

you don't need a ton of hp to go out and have fun with your car, especially if you are interested in turning corners anyway.

If not put everything together and go. If i ever go with a manual tranny i want the one with the .5 final ratio. Then you can still have a performance rear gear and a good cruising rpm on highway.

but right now my car runs 3500 rpm on the hwy with 700r4 and 4.56 and i haven't worn the engine out yet. I might wear the rear end out though as the pinion is spinning 5000 rpm at hwy cruise.
Its at a mechanics right now, making it safe to drive after a hibernation. Got married, got shipped out, left the service, got a job, changed jobs, and moved in the intervening time.

So it will be running, but I have a garage (finally) of stuff to put together. No real rush.
 

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Discussion Starter #5
I think your fuel economy is going to suck, IMO, the 5 speed needs have a .6x overdrive final ratio....30% cut in engine speed.....I also feel 370 gearset is too wild, unless you have it allready, with the torque of a 383 you just don't need 373 gears, unless drag racing....I would go no wilder than 336 which is what I have, given a choice....not worth spend big bux over though.....Like the Gear vendors overdrive units I have heard of, I fail to see a .82 overdrive as worth anything mear 20% engine speed reduction wont hardly save jack......


I dunno much about that cam, it maybe ok with 10% more CI than my 355, but it seems a bit on the wild side....

I like DPFI, still have my TPI open runner setup...money...but the FI did double my fuel economy over the Qjet when I got the car 12 years ago...it was a muncie with 336 gears then too....

I dunno jack about those fancy carbs....
Well I figure my L82 cruises around at 2500rpm, and so that is a good number to cruise around at. I might go EFI later, but its going to be big and splashy, till then I have 3 carbs around a 650, 750 and sidedrafts.
 

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Well I figure my L82 cruises around at 2500rpm, and so that is a good number to cruise around at. I might go EFI later, but its going to be big and splashy, till then I have 3 carbs around a 650, 750 and sidedrafts.
Well, as most people know, I a fan of the AFB by Carter or Edel, after that I take a Qjet, but not a holley.....NEVER a holley....

going to many a cruise night and many a drag strip over the years, it's a unusual site to see a holley without apparent leaks....looks funny seeing a nice T bucket, and that holley dripping fuel all over the intake manifold....

:devil: :laughing: :crazy: :WTF
 

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Discussion Starter #9
THis is true.

Stock motor is a pile of junk. Its why I have 75% of a new one.

if you want a basket case L82 when I get my new motor built you can have it.
 

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THis is true.

Stock motor is a pile of junk. Its why I have 75% of a new one.

if you want a basket case L82 when I get my new motor built you can have it.
i have a bastard aluminum block i'm gonna try and build. I'm gonna talk about doing it forever and just probably let it sit. So we indeed do have something in common.:laughing:
 

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Discussion Starter #11
Well,

Life does have an annoying tendancy of getting in the way.

I am thinking I will just go ahead and assemble this motor, see how I like it. if I dont like it I will get 1 step more mild camshaft 282/288 114 LSA 110 Intake centerline.

I will also use my holley 750.
 

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Discussion Starter #15
Havent had the bottom out, but the cylinders need rebored as there is a signifigant lip on them. Wouldnt suprise me if everything else needs work as well. I do not know if the cylinders have been bored before, but if i were to guess it had been bored.

I do have essentially new heads on it though.
 

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Discussion Starter #16
Havent had the bottom out, but the cylinders need rebored as there is a signifigant lip on them. Wouldnt suprise me if everything else needs work as well. I do not know if the cylinders have been bored before, but if i were to guess it had been bored.

I do have essentially new heads on it though.
Can we get back to talking about all the crap I have accumulated and what I should do with it all.
 

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Sorry I veered off. I might have been able to take the block off your hands, but too much boring for my needs :(
 

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Is the Buick block from an iron headed LT1 set up?

If so, you are going to have issues with the timing cover and water pump.

I would suggest you sell all those odds and ends and start clean with a complete crate motor. In the end it will save time and money with some degree of predictable performance.

To get the fuel economy and maximize the engine potential I would urge you to look at EFI - even starting with a used TPI you can stretch a lot of mileage out of a car that is geared high because the TPI will make so much more torque down low.

In fact, I know a guy with a complete TPI motor out of a 88 Vette. That would make an excellent platform to reach your goal - and do it very reasonable as aftermarket harnesses and computers are cheaper than one really good carb + carb tuning and timing issues.

A mild TPI motor with the good overdrive and even 2:87 rear gears would give you incredible top end and fuel economy and still have decent off line performance (very dependable that way too).
 
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