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1999 Chevrolet S-10 cylinder head help

Tiny
REDSNAPPER88
  • MEMBER
  • 1999 CHEVROLET S-10
  • 2.2L
  • 4 CYL
  • RWD
  • AUTOMATIC
Hello all, I have a 1999 s10 pickup 2.2l rwd.
I have to replace the cylinder head and gasket but when I'm online at orileys its listing to different parts one at $299 and another at $399 and it saying the casting numbers are different.
I just don't know which one I need for my s10. Is there a really big difference between the two? Or would either one work?

Thanks in advance!
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Tuesday, September 8th, 2015 AT 2:40 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Over the years, GM used two different head gaskets through 1997; 1998 is similar to the present one, but has a different casting number. From 1999 to present, cylinder head casting number 24576146 has been used. Will it make a difference, yes. If you use the wrong one you will be overheating all the time. Plus, the exhaust ports are different and it will leak.

Let me know if you have other questions.
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Tuesday, September 8th, 2015 AT 7:25 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,573 POSTS
Easiest way to be sure is to get the casting number off your cylinder head and match it. Or take it to a machine shop and have it rebuilt. Then you know it will fit.
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Tuesday, December 20th, 2016 AT 12:25 PM

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