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Supply Chain Update - Due to the current COVID-19 situation global supply chains are being constrained for purposes of sanitation and safety. As demand is understandably high we encourage our customers to place your order early, as we will fulfill orders on a first in, first out basis. We will fulfill your order as quickly as possible. Thanks you for your support!

PROMAXX ALUMINUM HEADS 383 STROKER

remanufactured crate engines for highperformance
  • Displacement
    383 Cubic Inch
  • Heads
    Promaxx SBC 200
  • Casting Material
    A356 – T6 Aluminum
  • Combustion Chamber
    64cc
  • Intake Runner
    200cc
  • Intake Valve
    2.02
  • Exhaust Valve
    1.60
  • Guide Material
    Bronze
  • Spark Plug Style
    Straight
  • Valve Angle
    23 degrees
  • Max Spring Lift
    575 Hydraulic Flat Tappet
  • Retainer Material
    Steel
  • Valve Job
    5 Angle
  • Valve Seal Material
    DuPont Viton

Call us today for YOUR custom-build quote TODAY!
1.800.942.7800

ENGINE PRICE
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$ CORE CHARGE
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$ + Freight


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Edelbrock RPM Air Gap Intake Manifold #7501
Intake Style: Dual plane Basic Operating RPM Range: 1,500 - 6,500 Intake Manifold Height: 4.720 in.
Intake Finish: Natural Intake Material: Aluminum
  • Crank - SCAT Crankshafts Series 9000 3.750 stroke
  • Crankshaft Rods - Pro Stock 5.7 I Beam Scat Connecting Rods (3/8 cap screws)
  • Pistons - KB Performance Flat Top Hypereutectic Coated
  • Pistons Cam - Delta Cam Dynamics 292H, Dur. 292/292 Lift .501/.501
  • Lifter - Elgin PRO STOCK Hydraulic Flat Tappet
  • Timing - Elgin PRO STOCK SS-3100 True Roller
  • Rockers - COMP Cams1412-16 Magnum Roller
  • Bearings - King Racing High Impact / High Performance
  • Gaskets - Fel-pro LaserWeld™ Performance Gaskets
  • Oil Pump - Elgin 55A High Volume / High Pressure Oil Pump
  • Push Rods - Elgin Moly +100 Chromemoly Push Rods • Max Horse power 430 @ 6300 RPM • Max Torque 450 @ 4500 RPM

Engine is built using a 4-bolt main, 2-piece rear main seal block, baked, wheel-abrated, magna-fluxed, bored .30 over, diamond honed, decked & line honed. All new brass soft plugs, oil galley plugs and cam bearings installed. Balanced rotating assembly with new harmonic balancer & flex plate included.

This engine can also be ordered with a 1 piece rear main seal block and roller cam for additional cost.