This listing is for (8) Speed Pro hypereutectic H581CP -30cc dome top Pistons and Matching moly ring set compatible with coated skirt Chevrolet 454ci (7.4L) big block V-8 engines.

Available in your choice of Bore sizes!  Please select Bore size needed from drop down before adding to Cart! 

Pistons feature:

• Domed head .340" high (30cc) w/2-valve reliefs. 
• Coated skirt pistons
• Stock 4.00 stroke
• Compression Height: 1.640 in.
  
• 5/64" 5/64" 3/16" ring grooves 
• For stock length 6.135" rods 
• Press-fit or floating pins-Clips included!