Help Identify Vortec engine
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From: Tx
LQ4? http://www.ebay.com/itm/6-0-LITER-VORTEC-LQ4-DROPOUT-ENGINE-MOTOR-CHEVY-SILVERADO-84K-COMPLETE-DROP-OUT-/150837372910?pt=Motors_Car_Truck_Parts_Accessories&hash=item231e9ba7ee&vxp=mtr
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What is the head casting number, and the block casting number, head casting number is located on the bottom right side of each head under the valve cover. Block casting number is located on the backside of the block under the driver side cylinder head.
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TECH Resident
Joined: Jun 2009
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From: Elizabeth City NC
No it looks like you have a 5.3 LM7
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Joined: Sep 2007
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From: Kansas City, MO
It has the old style of intake cover so its either 99-00. Look at the right rear corner of the block and it will have either 6.0 or 4.8/5.3 cast into it. Some SUVs were equipped with DBW before 03 but had that vette style of throttle body.
And if it was a 6.0 in 99-00, it would have iron heads. It's either a 4.8/5.3. Pull a spark plug and see if it has dished or flat tops. Dished= 5.3. Flat=4.8
And if it was a 6.0 in 99-00, it would have iron heads. It's either a 4.8/5.3. Pull a spark plug and see if it has dished or flat tops. Dished= 5.3. Flat=4.8
