Ferrea Super Alloy Exhaust Valve Set Chevrolet Small Block 1.625in Head 11/32in Stem - Set of 8

Ferrea SKU: FERF1478P
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Regular price $373.61
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A set of eight exhaust valves from Ferrea's Super Alloy line for the Chevrolet small block, with a 1.625in head diameter, an 11/32in stem and an overall length of 5.46in. These are 12-degree valves carrying Ferrea's S-Flo head form, cut for 12-degree cylinder heads rather than a stock 23-degree head - fitting them to the wrong head angle will not give you the seat geometry or the valve-to-piston clearance you are expecting.

Note the +.500 designation and the 5.46in overall length: this valve is longer than a standard small block valve, which changes your installed height. Plan on checking spring installed height, retainer-to-seal clearance, valve-to-piston clearance and pushrod length against the assembled engine rather than assuming a stock valvetrain will carry over. This is the exhaust valve - the matching part on the other side of the chamber is FERF2257P, the 2.125in Competition Plus intake valve. Intake and exhaust valves are not interchangeable.

  • Set of 8 valves
  • Exhaust valve - not interchangeable with the intake side
  • Ferrea Super Alloy product line
  • Head diameter 1.625in
  • Stem diameter 11/32in
  • Overall length 5.46in
  • 12-degree valve, S-Flo head form
  • +.500 length designation - longer than a standard small block valve
  • Application: Chevrolet small block

Specifications

Type Exhaust valve set
Product Line Ferrea Super Alloy
Head Diameter 1.625in
Stem Diameter 11/32in
Overall Length 5.46in
Valve Angle 12 degrees
Head Form S-Flo
Length Designation +.500
Quantity 8 valves per set
Engine Chevrolet small block
Part Number FERF1478P

Shipping

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Returns

  • 30-day returns on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
  • Installed or used parts can’t be returned — confirm fitment before you install.
  • Special orders and custom items are final sale.
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Full details: Shipping Policy · Refund Policy

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