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March Performance 23072 Big Block Chevy Ultra Serpentine Conversion Kit AC/PS/ALT Clear

(Chevrolet Camaro 1967-69, Corvette 1965-74, Impala 1965-76, C1500 1990, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-69, 1973-74 + 49 more models)

Manufacturer

Picture for manufacturer March Performance

Part Number

23072
16 reviews
Sale Price

$943.13

1 left at this price

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Usually delivered within 2 days

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Product Details

The March Performance 23072 is a complete Ultra Series serpentine conversion kit designed to replace worn or low-performance V-belt pulleys and brackets on Big Block Chevy engines equipped with a standard rotation long water pump. This kit covers air conditioning, power steering, and alternator accessories in a single, clean installation.

Each pulley in this kit is precision CNC-machined from solid billet 6061-T6 aluminum, providing an exact fit while delivering the high-tensile strength needed to handle high-torque loads and engine vibration. Unlike common cast pulleys that are prone to fracture, these billet components offer significantly longer service life. A clear powdercoat finish protects every pulley from corrosion without requiring ongoing polishing — even in hard-to-reach areas.

Kit Includes:

  • Crankshaft pulley
  • Alternator pulley with fan and nose cover
  • Power steering pulley (fits Saginaw press-fit pumps only)
  • Water pump pulley
  • Air conditioner pulley with nose cover (compatible with Sanden 505 and 508 compressors)
  • Brackets and all mounting hardware

Key Features:

  • Billet 6061-T6 aluminum construction — CNC-machined for precision fit
  • Clear powdercoat finish — maintenance-free, no polishing required
  • Eliminates belt throwing common with V-belt systems
  • Larger crank pulley improves alternator output, A/C performance, and cooling at low RPM
  • Bolts directly onto standard Big Block Chevy heads — no custom fabrication required
  • Compatible with standard rotation long water pump
  • Requires a 42-1/2 in. 6-rib alternator belt (not included)

Notes: Power steering pulley is compatible with Saginaw press-fit pumps only. A/C pulley is compatible with Sanden 505 and 508 compressors. Belts are not included. This kit does not include a power steering pulley nose cover; see manufacturer for optional cover availability.

Products specifications

Fits

Chevrolet Camaro 1967-69, Corvette 1965-74, Impala 1965-76, C1500 1990, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-69, 1973-74, Caprice 1966-76, C10 1975-80, El Camino 1966-75, Monte Carlo 1970-75, Nova 1969-71, C3500 1988-90 + 43 more models

Air Conditioning Bracket Included

Yes

Air Conditioning Brackets Included

Yes

Air Conditioning Cover Included

Yes

Air Conditioning Pulley Included

No

Alternator Brackets Included

Yes

Alternator Fan Included

Yes

Alternator Nose Cover Included

Yes

Alternator Pulley Grooves

6-groove, serpentine

Alternator Pulley Included

Yes

Bracket Finish

Clear powdercoated

Crankshaft Nose Cover Included

No

Crankshaft Pulley Grooves

6-groove, serpentine

Crankshaft Pulley Included

Yes

Idler Brackets Included

Yes

Idler Cover Included

Yes

Idler Pulley Grooves

6-groove, serpentine

Idler/Tensioner Included

Yes

Power Steering Brackets Included

Yes

Power Steering Pulley Attachment

Keyway

Power Steering Pulley Grooves

6-groove, serpentine

Power Steering Pulley Included

Yes

Power Steering Pump Style

Saginaw

Pulley Finish

Clear powdercoated

Pulley Material

Aluminum

Pulley Set Style

High water flow ratio

Pulley Style

Serpentine

Quantity

Sold as a kit.

Water Pump Nose Cone Included

Yes

Water Pump Pulley Grooves

6-groove, serpentine

Water Pump Pulley Included

Yes

Alternator Bracket Material

Aluminum

Finish

Gloss

Tensioner Included

No

Air Conditioning Compressor Type

Sanden 7176

Belt Included

No

Power Steering Pump Included

No

Water Pump Rotation

Clockwise

Idler Included

Yes

Tensioner Cover Included

No

Hardware Included

Yes

Alternator Included

No

Water Pump Included

No

Unbelievable price and easy checkout first time customer. Thank you

Very happy with tire

was a smooth transaction

Its fine. No complaints.

Very easy experience and secure payment options

ok

Good experience, fast shipping

Great price and easy to find parts.

Excellent pricing and easy to use

Excellent price and fast shipping. Product showed up as described and timely.

Simple just as the name says.

So far easy set up and navigation of bill pay site. Search worked well

Thanks Autoplicity you had the best prices I could find, fast shipping, and everything I ordered was exactly what I was looking for! Great Customer Service!

Great price. Very happy with order. Will buy from them again.

absolutely lowest price on my Griffin radiator and super fast with the shipping to boot, what more could you ask for!

Quickly received item. Exactly what I ordered and was best price out there. Will do business with them again.

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