C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

86 l98??

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Old 08-30-2007, 10:07 PM
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pr0zac
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Default 86 l98??

do 86 l98's have a 1 or 2 piece rear main seal?
Old 08-30-2007, 10:15 PM
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kize
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I believe they are two piece. Later they went to one.
Pre 86 used two piece. I believe e86 vette fell into that same catagory.

Last edited by kize; 08-30-2007 at 11:15 PM.
Old 08-30-2007, 10:28 PM
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pr0zac
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i know there were 350s with 1 peice and no roller provisions but i don't know the casting number of an 86 l98 to check my cheat sheet.
Old 08-30-2007, 11:01 PM
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Can86Z51
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Originally Posted by pr0zac
do 86 l98's have a 1 or 2 piece rear main seal?
I run an 86 myself - as far as I know, all 86's had the 1 piece rear main seal, but no roller-lifter provision in any of the blocks.
Old 08-31-2007, 12:05 AM
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vader86
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ALL 86s have a one-piece rear main seal.

Both early and late models.
Old 08-31-2007, 02:09 AM
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JAKE
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One piece rear main seal. I've got an early 86.

Jake
Old 08-31-2007, 04:08 AM
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One piece. '85 has two piece.
Old 08-31-2007, 09:46 AM
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pr0zac
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i thought it was 86 that was the first year.. and 87 is roller cams.. thanks for the help..

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