SR20DET Head Machining

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nisileighty
Posts: 30
Joined: Tue Jan 05, 2016 8:17 pm
Car: 1989 240sx KA-E
1989 240sx KA-ET
1990 240sx RB20
1991 240sx KA-DE
1993 240sx KA-DE
1993 240sx SR20 19psi
1990 300zx TT
1992 300zx TT
2003 350z VQ-DE
2008 350z VQ-HR
Location: Seattle, Wa
Contact:
Contact nisileighty

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Hey,
I'm about to do the headgasket swap on my red top SR, but I was wondering if I should get the head machined. The original head gasket didn't blow, the motor didn't overheat. I'm replacing the gasket so it's safer at higher boost. Any input helps!
Thanks!

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User avatar
Hijacker
Posts: 14373
Joined: Wed Aug 13, 2003 4:57 am
Car: '92 240sx Convertible
'94 F-150
Location: Fredericksburg, VA

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Having both the head and block checked and decked is a good idea if you're going to a metal headgasket. The factory gaskets are a lot more lenient towards warpage.
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nisileighty
Posts: 30
Joined: Tue Jan 05, 2016 8:17 pm
Car: 1989 240sx KA-E
1989 240sx KA-ET
1990 240sx RB20
1991 240sx KA-DE
1993 240sx KA-DE
1993 240sx SR20 19psi
1990 300zx TT
1992 300zx TT
2003 350z VQ-DE
2008 350z VQ-HR
Location: Seattle, Wa
Contact:
Contact nisileighty

Post

Thanks, will probably get it checked out then.
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