Does my '87 L98 350 GTA have a 4-bolt main block?
09-01-2001, 05:20 PM
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Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
Only the corvette L98's came with a 4 bolt. all other L98's came with a 2 bolt
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88' IROC-Z, 350 TPI, 700-R4
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88' IROC-Z, 350 TPI, 700-R4
09-01-2001, 08:12 PM
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the L98's used in 3rd gens had 2-bolt mains as far as i know...and as far as i laso know the 87 350's werent L98's.....unless its not the original engine
ANdy
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09-02-2001, 10:39 AM
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Car: 2018 Camaro SS
Engine: LT1 w/Paxton 1500SL
<font face="Verdana, Arial" size="2">Originally posted by redhottlb9:
the L98's used in 3rd gens had 2-bolt mains as far as i know...and as far as i laso know the 87 350's werent L98's.....unless its not the original engine
ANdy
</font>
the L98's used in 3rd gens had 2-bolt mains as far as i know...and as far as i laso know the 87 350's werent L98's.....unless its not the original engine
ANdy
</font>
Only the vettes got the 4-bolt main while the fbody's got the 2-bolt main
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09-02-2001, 01:42 PM
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<font face="Verdana, Arial" size="2">Originally posted by fly89gta:
yes they were...
Only the vettes got the 4-bolt main while the fbody's got the 2-bolt main
</font>
yes they were...
Only the vettes got the 4-bolt main while the fbody's got the 2-bolt main
</font>
In '86 with the addition of the one piece seal, all blocks were 2 bolt mains for the vette.Suxs but true.
Maybe the earlier'85 blocks had a 4 bolt main..I dont know that one for sure.
They had the 2 piece seal.
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1986 Vette Coupe,auto, 357 L98 w/alum. heads,40 over,crane cam,3.73 Gears,The usual Mods..
Had an 86 Bird before..want to get another F car again!
09-02-2001, 09:59 PM
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Car: 79 Monte Carlo
Engine: 406
Transmission: 2004-R
Axle/Gears: Phord 9 inch/3.90
I dont want to argue with anyone here, or start any wars, but my L98 in my 88 IROC that I had was indeed a 4 bolt main. It was the original engine also. For all you engine junkies, the block suffix code is CUA. This is indeed a 4-bolt main IROC motor. Did I get a freak? What are others thoughts?
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09-03-2001, 01:38 AM
#8
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how can i tell wut mine is without taking it apart?
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- David
88' GTA 350 MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT
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- David
88' GTA 350 MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT
09-03-2001, 09:41 PM
#10
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sorry guys but no L98s came from the factory with 4 bolt mains. My uncles business partner parking races L98 corvettes and all of the L98s he's ripped apart have been 2 bolt. Saves GM money when they don't really need the extra bolts.
09-03-2001, 10:55 PM
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Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
well that just suxs. looks like i have been misinformed. well looks like i am now informed correctly.
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88' IROC-Z, 350 TPI, 700-R4
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88' IROC-Z, 350 TPI, 700-R4
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