L98 mods
Thread Starter
Junior Member
Joined: Jun 2014
Posts: 11
Likes: 0
From: Hamilton ontario
Car: 1991 pontiac trans am Gta
Engine: Lb9 5.0 soon to be L98 5.7
Transmission: 700r4
Axle/Gears: 3.27
L98 mods
Hi I am swapping a l98 in my 1991 trans am Gta it has a mild cam 150shot ported edlebrock intake and runners air foil headers and a walbro 255 fuel pump. What hp should I be at thanks
Supreme Member
Joined: Jun 2011
Posts: 2,036
Likes: 6
From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: L98 mods
anywhere between 200 -300 would be a guess. it depends on how carefully the engine was assembled.and what parts were used
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iTrader: (2)
Joined: Nov 2013
Posts: 297
Likes: 0
From: Freehold NJ
Car: 87 Iroc 5.7,67 SS Camaro,90 Formula
Engine: 355 AFR Superram LPE 219
Transmission: 700r4 3000 stall 4spd 5 spd
Axle/Gears: 3.27
Re: L98 mods
Dyno numbers are fun to quote, but run it in the 1/4 and maybe g tech some 0 to 60 and then you get a better idea where you are .
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