Originally Posted by 400smb_s10
The vortec heads what year of motor do they come off of?
1996-2002 Chevrolet Express/GMC Savana full-size vans
1996-1999 Chevrolet/GMC C/K full-size trucks
1996-1999 Chevrolet Suburban/GMC Suburban full-size long-wheelbase SUVs
1996-1999 Chevrolet Tahoe/GMC Yukon full-size short-wheelbase SUVs
1999-2000 Cadillac Escalade
The motor should have 5700 Vortec badging and was built under Regular Production Order L31.
F-BIRD'88 made a good point the other day, that the heads found in boneyards are more likely to be cracked than a new set of heads from Summit or another source. That's why the motor is in a boneyard in the first place.
Here's a good price from Pace Performance on a bone-stock head....
There are many other sources, including Scoggin-Dickey Chevrolet....