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383 Chevy Proharger - Late-Model 383 Buildup-Part 3

With A Solid Long-Block Our Lt1 Stroker Gets A Cleared Airway And A Giant Lung!

Photography by Carrie Fesler, Roy Landgrave, Terry Cole
  • 383 Chevy Procharger Belt Drive
    Getting the belt over the pulleys required a little trial and error. Usually, it's a piece of cake; simply loosen the idler pulley and slip the multi-grooved belt in place, and then retighten the idler. However, our best plan led to loosening the crank pulley, putting the belt on, then tightening down the pulley again. After we figured it out, it worked every time.
    383 Chevy Procharger Belt Drive
    Getting the belt over the pulleys required a little trial and error. Usually, it's a piece
  • 383 Chevy Procharger Intercooler
    The single biggest accessory for a supercharged application on the street is an intercooler. Strategically mounted, it will considerably lower the air intake temperature, increasing the density of the air/fuel mix for bigger power gains. Since our engine will be static on the dyno, the boys at ATI sent along this water-to-air intercooler (used on boats) so that we can keep the intake charge as cool as possible. It bolted on to our special-made bracket. Neat setup!
    383 Chevy Procharger Intercooler
    The single biggest accessory for a supercharged application on the street is an intercoole
  • 383 Chevy Procharger Intercooler Hose
    Here Bob positions the hose leading out of the supercharger to the intercooler. Everything fit perfectly.
    383 Chevy Procharger Intercooler Hose
    Here Bob positions the hose leading out of the supercharger to the intercooler. Everything
  • 383 Chevy Procharger Hose Fitting
    A bell-shaped hose is made to fit over the mouth of our Arizona Speed and Marine 58mm billet throttle body. Again, installation was smooth as silk.
    383 Chevy Procharger Hose Fitting
    A bell-shaped hose is made to fit over the mouth of our Arizona Speed and Marine 58mm bill
  • 383 Chevy Procharger Headers
    With the ATI D-1 supercharger all bolted in place, our attention turned to the exhaust side of things. Contrary to popular belief, the exhaust is of equal-if not greater-importance when it comes to making power on a supercharged application. Here we were fitting a set of large-tube headers from TPIS. Although we won't run these on the dyno (since the Vrbancics have a myriad of pipes with all of the correct EGT hook-ups), we will more than likely use this set in the car.
    383 Chevy Procharger Headers
    With the ATI D-1 supercharger all bolted in place, our attention turned to the exhaust sid
  • 383 Chevy Procharger Fuel Delivery
    The fuel delivery system of a supercharged engine is of paramount importance. As indicated in Part 2 of this series (Sept. '00), we used a state-of-the-art fuel pump and regulator from Aeromotive. The point of this photo is to show the boost-referenced regulator compared with the factory unit. The Aeromotive regulator allows full adjustment and is sensitive to the boost and vacuum created by the engine, altering the fuel pressure proportionately to prevent a lean-out situation from occurring.
    383 Chevy Procharger Fuel Delivery
    The fuel delivery system of a supercharged engine is of paramount importance. As indicated
  • 383 Chevy Procharger Intake Manifold
    The correct parts combination is important in every engine, but when it comes to supercharging it's even more so. Since we were basically limited to using the factory intake manifold, it was important to maximize its potential. For this we turned to the power mongers at Arizona Speed and Marine. They took a stock intake and ported it for better flow. And, they built up bosses to accommodate nitrous oxide nozzles. Hmmm, you can never have enough power, for sure.
    383 Chevy Procharger Intake Manifold
    The correct parts combination is important in every engine, but when it comes to superchar
  • 383 Chevy Procharger Throttle Body Openings
    Here's a comparison of the throttle body openings between the stock (52mm) (top) and Arizona Speed and Marine (58mm) (bottom) intake manifolds.
    383 Chevy Procharger Throttle Body Openings
    Here's a comparison of the throttle body openings between the stock (52mm) (top) and Arizo
  • 383 Chevy Procharger Nozzle Provision
    As mentioned above, the ASM unit has provisions for nitrous nozzles.
  • 383 Chevy Procharger Built Up Area
    Here you can see the built-up area on the outside of the port that is machined for the nozzles, and the angle of the nozzles themselves.
    383 Chevy Procharger Built Up Area
    Here you can see the built-up area on the outside of the port that is machined for the noz
  • 383 Chevy Procharger ASM Manifold
    The ASM manifold has its port gasket matched so there's a smooth transition between it and the cylinder heads. The process is basic; a little blue dye is applied to the port mouth, a scribe is used to transfer the gasket's opening to the manifold; and the scribe marks indicate where the ports need to be contoured to match the gaskets.
    383 Chevy Procharger ASM Manifold
    The ASM manifold has its port gasket matched so there's a smooth transition between it and
  • 383 Chevy Procharger Die Grinder
    A hand-held die grinder with a carbide bit designed for cutting aluminum is employed to make the required changes in port configuration.
    383 Chevy Procharger Die Grinder
    A hand-held die grinder with a carbide bit designed for cutting aluminum is employed to ma
  • 383 Chevy Procharger Intake Mouth
    The same process that was applied to the ports is repeated on the mouth of the intake where the throttle body is positioned. Going up in size from 52mm to 58mm may not seem like a lot, but when it comes to airflow it is considerable.
    383 Chevy Procharger Intake Mouth
    The same process that was applied to the ports is repeated on the mouth of the intake wher
  • 383 Chevy Procharger Nozzles
    The welded-up area for the nitrous nozzles is also given a smoothing out treatment.
  • 383 Chevy Procharger Thorttle Body
    Here's the precision-crafted ASM 58mm billet throttle body. Aside from the port matching, the nitrous boss install, and the addition of this beauty, the only other preparation our intake received took place at Extrude Hone, where an abrasive media is forced through the entire inside of the manifold under high pressure, leaving a near perfectly polished surface in its wake. Needless to say, we're sure that this 383 will have plenty of intake charge for making big power. Stay tuned for the series finale in next month's issue.
    383 Chevy Procharger Thorttle Body
    Here's the precision-crafted ASM 58mm billet throttle body. Aside from the port matching,
SOURCES
Cola Performance Products
19122 S. Santa Fe Ave.
Rancho Dominguez
CA  90021
SRP
714-898-9764
www.srp.com
Titan
13001 Tree Ranch Rd.
Ojai
CA  93023
Manley
1960 Swarthmore Ave.
Lakewood
NJ  08701
7-32/-905-3366
www.manleyperformance .com
ARP
531 Spectrum Circle
Oxnard
CA  93030
805-278-7223
Pro Gram Engineering
P.O. Box 472
Barberton
OH  44203
Carbon Components
223 17th St.
Huntington Beach
CA  92548
Airflow Research
28611 W. Industry Dr.
Valencia
CA  91355
Beck Racing Engines
21616 N. Central Ave., Suite 1
Phoenix
AZ  85024
Cloyes
P.O. Box 287
Paris
AR  72855
MSD
El Paso
TX  79936
915-857-5200
www.msdignition.com
Arizona Speed and Marine
6313 W. Commonwealth
Chandler
AZ  85226
ATI ProCharger
14801 W. 114th Terr.
Lenexa
KS  66215
913-338-2886
www.procharger.com
CNC Cylinder Heads
727-527-8866
www.cncheads.com
Tpis
4255 County Rd. 10 East
Chaska
MN  55318
Childs & Albert
24849 Anza Drive
Valencia
CA  91355
www.childs-albert.com
Aeromotive Systems
218 W. 74th St.
Kansas City
MO  64114
Crane Cams
530 Fentress Blvd.
Daytona Beach
FL  32114
3-86/-252-1151
N/A
www.cranecams.com
Billet Fabrication
649-F Easy Street, Dept MMFF
Simi Valley
CA  93065
Federal Mogul/Fel-Pro
26555 Northwestern Hwy.
Southfield
MI  48034
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