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Pistons. Any of them forged stock?

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Old Mar 13, 2001 | 03:24 PM
  #1  
theformula's Avatar
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Pistons. Any of them forged stock?

Did the L98 vette come with forged pistons? Or did all L98s and LB9s come with the same pistons.Are my pistons Hyperpeutectic??? or cast?

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91 Formula
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Old Mar 13, 2001 | 10:17 PM
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RB83L69's Avatar
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From: Loveland, OH, US
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No.

No. The L98 has a 4" bore & therefore essentially 4" diameter pistons, the LB9 has a 3.736" bore.

Cast.

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"So many Mustangs, so little time..."
ICON Motorsports
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Old Mar 13, 2001 | 10:28 PM
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Ok. I was actually just wondering about the material. I knew they were different sizes

So they are cast huh.....interesting.


thanks man
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Old Mar 14, 2001 | 09:51 AM
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In 1991, according to a report from GM Historical Services, they say that the L98s had "higher silicon content" pistons. But its still just cast. Nothing special.
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Old Mar 14, 2001 | 12:03 PM
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1969 Camaro Sport Coupe
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Previous owner of an 89 RS Camaro
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