• This listing is for a set of (8)  Hypereutectic pistons & MOLY Ring set compatible replacements for 1999-2003 GM family passenger car models with the 325ci 5.3L VORTEC-series V-8 VIN "T" engines.  Please CHECK VIN - THESE FIT VIN "T" CARS AND TRUCKS.  VIN refers to the 8th character in the vehicles ID in lower dash reading from left to right. 

Silverado 1500, 2500, Cheyenne, Avalanche 1500, Express 1500, 2500, Suburban 1500, SSR, Tahoe, Trailblazer, Envoy, Savana 1500, 2500, Sierra 1500, Yukon

Available in Your choice of Sizes!  Please select size needed from drop down before adding to Cart!

• These are dished pistons and a matching Hastings or NPR Ring set depending on availability at time of purchase. 

Pistons Feature"

Coated skirt 3.050 inch diameter, 0.068 inch deep recessed piston head.

Press fit pins. .

CYLINDER DIAMETER: 3.780 @ STD, 3.800 @ +.20 over & 3.810 @ +.030 over.

• Rings TOP LAND: 1.50mm 2ND LAND: 1.50mm 3RD LAND: 3.00mm (oil ring). 
• COMPRESSION HEIGHT 1.325" 
• PIN DIAM. .9451" 
• IMPORTANT: THESE PISTONS ARE 1999-2003 AND HAVE A .9451" PIN DIAMETER. PLEASE CONFIRM YOUR PIN DIAMETER!! 2004 AND UP USED A .9429" PIN DIAMETER.