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Manley 12303-8 SBC Race Master 1.600 Exhaust Valve 8mm AFR Heads

Manufacturer

Picture for manufacturer Manley

Part Number

12303-8
11 reviews
Sale Price

$202.55

1 left at this price

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Usually delivered within 2 days

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Product Details

The Manley 12303-8 is a high-performance Race Master exhaust valve designed specifically for small block Chevy applications with AFR cylinder heads. This precision-engineered valve features a 1.600-inch head diameter, optimized for maximum exhaust flow in performance and racing applications.

Key Specifications:

  • Valve head diameter: 1.600 inches (+.100 oversize)
  • Stem diameter: .3136 inches (8mm)
  • Designed for AFR small block Chevy heads
  • Race Master series construction for high-performance durability
  • Engineered for increased valve lift and extended RPM operation

Manley Race Master valves are manufactured from premium materials with strict quality control to ensure consistent performance under extreme conditions. The oversized design allows for improved cylinder head breathing and increased power output in modified engines. Each valve is precision-machined to exact tolerances for proper seating and sealing.

very easy to use

Lowest price I could find in the net. It was easy to order. Delivered on time. I'll buy again.

fast

Need more specific details on item.

Shopped around for a VDO gauge all over the internet incluing ebay, amazon and at least a dozen online retailers. Autoplicity was at least 10% cheaper than anybody else and a good 30% cheaper than most. The outstanding reviews made me more confident in ordering fom them for the first time.

Very nice transaction! Great doing business with you.

hard to find things but worth it

Great pricing, but did take a while to ship. I believe this was due to the product being on backorder from the manufacturer.

The ordering was easy and recieved the product the next day.Excellent company.

Very simple and easy.

Shipped out fast. Prices are very competitive. Couldn't ask for more.

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