I think i made a mistake buying heads

joecindyw

New Member
Joined
Feb 25, 2013
Messages
1
Karma
0
Car
2007 chevy silverado
I have an an older 350. Around a 90 model. I recently purchased what i thought were vortec heads that would fit. However after getting them i believe they are ls heads and wont fit my gen 11 block. Casting on the alum heads is 862. Any help would be aporeciated
 

ChevyHiPro

Moderator
Staff member
Joined
Oct 7, 2012
Messages
134
Karma
5
Car
1976 Chevy Cheyenne 1500 P/U
To help you decide if these heads will fit your engine, I need a little more information.
Could you look on the rear of the block for the block casting number?
Also, look the aluminum heads over for the casting number, it will be a 6, 7, or 8 digit number.
The 3 digit number you posted (862) is not a casting number.

Once you have the casting numbers, please post in this thread.
 

Latest threads

Top