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Is this an L98?

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Old 04-05-2023, 03:41 PM
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Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
Transmission: AT
Is this an L98?
Seller states "250,000 miles, from 1994 K1500 350 small block" . Might this be an L98? It is $50 and close to my house. What block and head numbers should zi be looking for, to be an L98 ? Thanks.



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Old 04-05-2023, 03:47 PM
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Re: Is this an L98?
Most likely not an L98, but an L05, which is a 350 TBI truck motor.
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Old 04-05-2023, 04:28 PM
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Car: 1989 IROC-Z
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: BW 9 Bolt / 2.77 Posi
Re: Is this an L98?
L98s only came in F-bodies and Y-bodies, so no.
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Old 04-05-2023, 05:24 PM
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Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
Transmission: AT
Re: Is this an L98?
OK thanks!
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Old 04-06-2023, 10:39 AM
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Re: Is this an L98?
Looks like a TBI motor.. A L98 will have #083 or #217 cast heads.. The tbi motors have the swirl port heads.
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Old 04-06-2023, 10:42 AM
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Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
Transmission: AT
Re: Is this an L98?
Thanks all, I ruled it out. At Fifty Bucks, it disappeared from facebook in a day!
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Old 04-06-2023, 08:15 PM
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Re: Is this an L98?
Some things are best left to pass on to The Greater Fool. Or maybe, to somebody to whom it just doesn't make any difference; like maybe, all they want is, to get their work truck back on the road. W/e. it's not what you're looking for, let it go.
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