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the more I see this, the more I love the build. I have always had a thing for seeing cars that were modded back back in their hay day restored, but restored while maintaining the mods they had which were 'time period correct'. Those RMCR supercharger kits are a small piece of history back when LT1's ruled the road, there was something really unique about seeing one back then and even more so now. Seems like you're really on the right track to not only make it cool, but fast as hell too.

I'm almost done with an LSA swap on my car, and while I'm looking forward to the functionality of the LS engine it's nowhere near as cool to me as popping the hood and seeing the correct engine for these cars with the supercharger kit that we all drooled over before LS swaps became the norm.
 
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Discussion Starter #23
Thank you, that means a lot coming from you. I have been following your car as well. I wish I has some of your skill! I really like all that you have done with your car and happily admit it is cooler than my easier
“rebuild”.
I had a shop go to restore my car and after they went out of business, I brought my car home in pieces. It has been a long road figuring out where each nut and bolt goes (when I did not disassemble it), but I have recently thrown a lot of money at this to try and get this done.
I hope to have a reliable driving Impala by spring of 2021...

PS. I’ll throw in a shot of what I started with
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Discussion Starter #24
Got the aftercooler plumbing done. Found my oil cooler lines were hand bent from accessory drive being on that side. Have to re-bend to get new blower bracket on.
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Discussion Starter #25
I mocked up the supercharger side this weekend. Some fitting and 1 occasion where the hack saw came out. The blower side is really tight and the 12 rib belt doesn’t make it any easier.
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Discussion Starter #27
Good eye!
Yes, those bolts came with the blower kit. At a torque spec of 30 ft. lbs., I was not expecting Grade 8. Are you thinking they should be Grade 8?
(They are only finger tight for the mock up, so it is not too late).
 

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Yes, with the bending loads due to the stack up, blower pulley on top of damper then threaded to hub, I would be putting something quality in there.
First choice would be something ARP selected by shank length even if you have to remove excess thread from the overall length.
Step up from that would be studding it with ARP hardware.
Big blower pulleys hanging of the SB Chevs tiny crank snout is bad enough.
When you add in the extended length the LT1 adds, it gets scary.
The added benefit to the torque head set up is if the damper works loose or the key shears due to blower load, the engine shuts off.
Witnessed this recently.
May I recomend re checking the damper bolt from time to time.
 

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Discussion Starter #29
Great advice. As an m.e. with a metallurgy background, I too am uneasy with how much the SB LT1 snout gets loaded on a double wide pulley set up. I will certainly take your advice and upgrade those bolts on final assembly. Thank you for offering the help. I will also keep an eye on the crank bolt.
 

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Discussion Starter #30
So I skipped work today and got the oil cooler, radiator , and fans in (driver side fan relocated slightly). Had to throw on the blower temporarily to trim the top (plastic) radiator shroud for the blower inlet elbow. I’m happy with the belt wrap on the the RMCR bracketry.
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Discussion Starter #31 (Edited)
I don’t know if it will be enough, but after this evening, there are many linear inches of radiator fin on the car.
Oh, that bumper is disgusting. After the car is up and running, we will paint it (I am not done dropping my ratchet on it yet).

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Discussion Starter #32
Temporarily put centrifugal and aftercooler on so I could route supercharger oil lines, radiator hose bypass, and aftercooler water lines.
I hope to permanently mount it all next weekend.

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the more I see this, the more I love the build. I have always had a thing for seeing cars that were modded back back in their hay day restored, but restored while maintaining the mods they had which were 'time period correct'. Those RMCR supercharger kits are a small piece of history back when LT1's ruled the road, there was something really unique about seeing one back then and even more so now. Seems like you're really on the right track to not only make it cool, but fast as hell too.

I'm almost done with an LSA swap on my car, and while I'm looking forward to the functionality of the LS engine it's nowhere near as cool to me as popping the hood and seeing the correct engine for these cars with the supercharger kit that we all drooled over before LS swaps became the norm.
Yep.

As far as bang for your buck, nothing beats a junkyard LS with a turbo. But, there's something special about a preserved piece of history.

Not to mention... the coolest cars certainly aren't cheap. :cool:
 

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Discussion Starter #34
Yep.

As far as bang for your buck, nothing beats a junkyard LS with a turbo. But, there's something special about a preserved piece of history.

Not to mention... the coolest cars certainly aren't cheap. :cool:
I effin HATE turbo set ups, so that is not an option in any car I will ever own. The nature of the exhaust gasses doing the work means too much of a delay for my tastes. That's just me though, I don't really like high revving engines either.
Truth be told, I really prefer a roots type of blower for the power delivery and torque. It is just that I have never seen the roots blowers fitted on an LT1 (except for 1 by Keith Meese and the years long effort by a guy on this forum... For me the only viable option was a centrifugal.
 

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Discussion Starter #35
Did nothing last weekend (out of town guests). Busy all day Saturday. Finally spent a few hours with various connections today. Blower is fully mounted now, and I got rid of that ugly green belt - replaced the Gates “heavy duty” belt with a Gates “RPM” belt (which is a proper black color and a better supercharger belt).

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Discussion Starter #36
Small update: installed power steering lines this weekend. Real pia. Should have put them on much earlier in the process, had to do a lot of hand bending on the pipe portion.
I also sent out my stock wheels for widening (Weldcraft). Looking forward to fitting 315/35/17 in rear.
Oh, and I also got a new tool to help make this project easier: 5000EXT QuickJack.
I really like it so far. Don’t know why I didn’t buy one of these years ago!
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My issue with the QuickJack and other similar devices is that you can buy a real lift for basically the same price. The QuickJack doesn't do anything that a floor jack doesn't do, it just saves you a bit of jacking labor.
 

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Discussion Starter #38
My issue with the QuickJack and other similar devices is that you can buy a real lift for basically the same price. The QuickJack doesn't do anything that a floor jack doesn't do, it just saves you a bit of jacking labor.
I won't debate the quality of "real lifts" in the $2000 to $4000 price range, but I did shop them all, and it was very tempting to go that direction. Ultimately, my background in mechanical engineering and metallurgy makes me see things like this very critically. Add to that that getting a 2 or 4 post lift shipped and offloaded to your curb, and carried to 200 feet to your garage, is a real hassle when your only help is a wife with physical ailments. lol

I was not trying to convince anyone to get a QuickJack, but I can say why I went that direction:
1) My garage floor is not suitable for the safe anchoring of a two post lift (crappy concrete)
2) My garage ceiling is only 8 ft high, and the garage door opener hangs down about a foot below that
3) While low enough, four post lifts (in this price range) have to be driven on to, and I would have to physically roll my car up the ramps by myself (my car does not run yet)
4) The quickjack is completely portable, easily slid around, and easily storable

Agree or not, I strongly feel the quickjack is far superior to the two floor jacks and four jackstands that I have been using for years. Primarily because of how precarious it can be when you lift the front of the car, and then the back, to get the entire car up and level. The quickjack also goes much higher than any traditional floor jack lifts (so you can get a transmission out from under the car). Finally, I just can't believe how "solid" the car feels when its up on the quickjack. It does not shake or shimmy and I no longer have fear of being under the car when I am really muscling on something.

The quickjack is very expensive. And yes, I wrenched on jacks and jackstands for many years, and always got the job done without issue.
However, now that I am older and have more money, I was able to do this as a gift to myself. I can tell you that after working under the quickjack for one day, I have been too brave, and too dumb with jack and jackstands over the years. At 52, I finally realize I am not invincible and a lot of people count on me to stay alive and earning a living. I also realize that a $1000 to $2000 investment (when I was in my 20's) in a safer jack would have been easily justified in years of safety and ease of working on the cars I've owned.
This wasn't intended to promote quickjack or any lift - but I do want to encourage the young and invincible people to be as safe as you can (whatever your garage/driveway situation). I would also say that by the time you buy 2 quality jacks and 4 jackstands, you are part way to a more expensive and safer lifting device. Invest in your safety whenever you are able. I'm sorry I didn't do it a lot sooner.
 

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Understood.

However, I can't help but laugh at the fact that we are talking about safety and mortality with regard to working on the car. Nevermind the safety risks associated with driving the damn thing after you make it fast! 😂
 

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Discussion Starter #40
Understood.

However, I can't help but laugh at the fact that we are talking about safety and mortality with regard to working on the car. Nevermind the safety risks associated with driving the damn thing after you make it fast! 😂
I've survived 1 rollover and 4 major collisions. Two months ago, when I was yanking on a bolt and the front rotor was above my head and the car started rocking, I knew I would not survive if the car shifted or the jack failed. That's when I decided I needed the quickjack.
I have many driving courses under my belt, and I keep the fast driving on the race tracks and drag strips. I'll take my chances where I think the odds are in my favor. Besides, if I die racing I was having fun. Dying under the car is just a shame.
 
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