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Does anyone know if any twin screw superchargers would fit under a L88 hood with a 383 stroker, or would a blow through carb/efi setup have to be used with a centrifugal supercharger that offsets to the side? I like the looks of the twin screw or roots but figured clearance would be an issue.
Magnuson- Superchargers. I was looking at these in the 2000's. Sadly they quit making them for Gen 1 sbc. This was a (FAST EFI I think?) setup. Big long post here on the forum by Halfnium about his most excellent installation of a blow through offset.
Thanks for replying gkull.
If I understand what I am looking at correctly we are looking at the back of the supercharger and the right pulley sticks out past the front to attach to a drive belt with an opening on the left for intake? It also appears to be direct port injection.
I am not completely against the idea of cutting a hole in the hood, but my issue is if the car was caught in rain at some point because it will be driven almost daily.
Thanks for the feedback!
Last edited by Cohiba; Sep 29, 2021 at 10:43 AM.
Reason: adding pictures
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
Originally Posted by gkull
Magnuson- Superchargers. I was looking at these in the 2000's. Sadly they quit making them for Gen 1 sbc. This was a (FAST EFI I think?) setup. Big long post here on the forum by Halfnium about his most excellent installation of a blow through offset.
That would be a nice unit to have for an experiment.
Does anyone know if any twin screw superchargers would fit under a L88 hood with a 383 stroker, or would a blow through carb/efi setup have to be used with a centrifugal supercharger that offsets to the side? I like the looks of the twin screw or roots but figured clearance would be an issue.
Thanks!
Hello Cohiba,
To answer your first question, I don't know of any intake based supercharger that fits under a C3 hood - even a L-88 hood. A centrifugal based setup will, but that in and of itself, can be challenging. I have a L-88 hood as well, and that hood definitely has more vertical room at the carburetor area, but not a ton more room. Most of the room is more towards the front of a Gen I SBC.
Here is a picture of a 'blow-through' application that fits, no hood cutting. There is a detailed post on how to do this - if you decide to go that route.
I was thinking more inline with a 2.3L compact size like that one, which would be larger than the ZL1 camaro at 2.2L. Now getting that to fit comfortably under a C3 hood, may be a challenge, Wipple for the WIN!
Last edited by Buccaneer; Sep 30, 2021 at 01:27 PM.
Hello Cohiba,
To answer your first question, I don't know of any intake based supercharger that fits under a C3 hood - even a L-88 hood. A centrifugal based setup will, but that in and of itself, can be challenging. I have a L-88 hood as well, and that hood definitely has more vertical room at the carburetor area, but not a ton more room. Most of the room is more towards the front of a Gen I SBC.
Here is a picture of a 'blow-through' application that fits, no hood cutting. There is a detailed post on how to do this - if you decide to go that route.
Halfnium,
I think I found one last possibility to make a weiand 144 fit. I found a forum post back in 2010 and post #27 by Billysvette mentions an air cleaner thats offset Holley makes. https://www.holley.com/products/engi...ps/parts/64280
I guess worst case scenario would be to modify the hood if it didn't quite clear and use solid motor mounts to keep the motor from twisting upwards.
I just about have everything planned out, and just a couple more projects left to finish up on the house before priorities allow me to start the build. I will do a build forum when it starts, but the basic idea is forced induction on the blueprint 383 just to bump it up a bit more with EFI, a 5 speed conversion from the automatic (still trying to figure out if its best to order a full kit or shop around for individual parts), rack and pinion, transverse composite leaf spring suspension, offset trailing arms, and planning to paint the car myself. Considering gauge upgrades like the Dakota Digital unless I can find a better deal by then.
Thanks again for the information and I will keep the centrifugal route in mind, but I believe the weiand 144 would be much easier overall.
No worries. Sounds like you have a plan. Installing a PD supercharger would be logistically easier than the centrifugal for sure. There will be some challenges there, but not as many things to overcome. My biggest reason to go with the centrifugal charger WAS to fit everything under a stock hood. That can be done - although I did switch to a L-88 hood (purely because I've always loved the look of those hoods). Good luck with your project, I'll be looking forward to reading about it!
1982 383 Stroker and blower
Now getting that to fit comfortably under a C3 hood, may be a challenge, Wipple for the WIN! 
