CNC Port LS3/L92/L99/L76 821, 823, 716 Cylinder Heads (PAIR)

Information

This program works on the following head casting numbers:
821
823
716

Now you can get this porting service on your cylinder heads at an incredibly low cost! Simply follow this procedure:
-Remove the cylinder heads from your car
-Disassemble cylinder heads to completely bare condition
-Wash cylinder heads
-Print a copy of your order confirmation, put it in the box and send the heads to:
Katech Inc.
Attn: Cylinder Head Department
24324 Sorrentino Ct.
Clinton Twp., MI 48035

NOTE: Not including a copy of your order confirmation in the box will prevent or delay the processing of your order.

Please be sure to properly package cylinder heads with plenty of bubble wrap protection on the corners. We have found that when shipping cylinder heads a box, wrapped in bubble wrap, within another box offers the best protection from damage. Please do not use packing peanuts.

If you would like Katech to disassemble, wash and re-assemble your heads, please add those services to your order using the related product links below.

Includes Katech logo laser etched on both ends

*”Expected to ship” time in the online store is an estimate based on receiving your cylinder heads within 5 days of ordering and may vary based on shop load.