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Vehicle Info NeededMARCH PERFORMANCEPART NUMBER: 655-20726
Inward Mount Performance Serpentine Drive Kit Includes Brackets and Pulleys to Install: Standard Rotation Short Water Pump
$63500
Ships on Sep 11, 2026
Lowest Price GuaranteePerformance Ratio Drive KitsStandard Rotation
- Inward Mount Performance Serpentine Drive Kit
- Standard Rotation Short Water Pump
- Driver Side Alternator
- Saginaw Keyway Power Steering Pump
Increases Horsepower - Not Recommended for Hot Running CarsAlternator A/C Standard
Rotation
Water PumpSaginaw
Keyway
P/S PumpSaginaw
Press Fit
P/S PumpRemote
Reservoir
Power SteeringBelt Size Yes - Yes, Standard Yes - - 53' - Uses Gates belt #465-K060525
Includes Brackets and Pulleys to Install:
The March Chevy Small Block Ultra Inward Mount Serpentine Kits are precision CNC machined from solid billet 6061-T6 aluminum to fit perfectly, handle high torque and vibration. This bracket kit comes complete with stainless steel tensioning rods and chromoly rod ends for high performance operation. They are powder coated to eliminate polishing in those hard to reach places. Matching serpentine pulleys are precision CNC machined from 6061-T6 aluminum and will not fracture like common cast pulleys. The street rod ratio increases water flow and fan speed helping at critical low speed driving!
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Kits Include:
- Alternator Bracket
- Alternator Pulley with Fan and Nose Cover
- Water Pump Pulley with Nose Cover
- Crankshaft Pulley
- Tensioning Rods & Adjustable Rod Ends
- Grade 8 Mounting Hardware Power Steering Kits Add:
- Power Steering Bracket & Pulley A/C Kits Add:
- A/C Bracket, Hardware and Nose Cover Kits Require:
- 13'' Clearance from water pump centerline to hood (see diagram below)
- Passenger side cylinder head needs one hole tapped on 1969-84, 1985-up heads are bolt on (Will work with Vortec heads)
- If using ZZ4 timing cover you will have to modify short water pump for clearance
- GM 10si style alternator with mounting tabs at 6 and 12 O'Clock
- Most kits require a standard rotation small block Chevy short water pump
- Power steering kits require power steering pump style specified
- A/C kits require a reverse rotation 1984-91 Corvette water pump and Sanden 505 or 508 Compressor
Part TypePulley Kit
Product LineMarch Chevy Small Block Ultra Inward Mount Serpentine Drive Kits
BrandMARCH PERFORMANCE
Package Height12.0
Package Width12.1
Package Length17.8
Weight11.9 PG
Part CategoryPerformance Parts
Hardware IncludedYes
Idler Brackets IncludedNo
Idler/Tensioner IncludedNo
Air Conditioning Bracket IncludedNo
Crankshaft Pulley Grooves6-groove, serpentine
Alternator Pulley IncludedYes
Alternator Nose Cover IncludedYes
Water Pump Pulley GroovesNon-ribbed
Bracket MaterialBillet aluminum
Pulley Set StylePerformance ratio
Crankshaft Nose Cover IncludedNo
Water Pump Pulley IncludedYes
Alternator Brackets IncludedYes
Power Steering Pulley AttachmentKeyway
Pulley StyleSerpentine Pulley
Pulley FinishClear powdercoated
Crankshaft Pulley IncludedYes
QuantitySold as a kit
Power Steering Brackets IncludedYes
Alternator Pulley Grooves6-groove, serpentine
Air Conditioning Cover IncludedNo
Air Conditioning Pulley IncludedNo
Power Steering Pulley IncludedYes
Alternator Fan IncludedYes
Power Steering Pump StyleSaginaw
Power Steering Pulley Grooves6-groove, serpentine
Idler Cover IncludedNo
Part FitmentSemi Universal
Bracket FinishClear powdercoated
Pulley MaterialBillet Aluminum
Water Pump Nose Cone IncludedYes
Vendor Part Number20726
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
