L98 with LT4 hotcam question
07-30-2015, 11:22 PM
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Car: 1988 Camaro IROC-Z
Engine: 5.7/350
Transmission: 700r4
L98 with LT4 hotcam question
Im looking into getting an LT4 hot cam for my L98. My question is will it run fine on the stock tune or will it need to be tuned? The motor is stock but looking to get headers very soon to go in with the cam
07-31-2015, 08:19 AM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: L98 with LT4 hotcam question
For best results, it will need a tune, valve springs (maybe machine work) and a good torq converter.
In your 88? Will it run ok with just a cam? yeah but it could be better.
In your 88? Will it run ok with just a cam? yeah but it could be better.
08-01-2015, 02:32 AM
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Car: 1988 Camaro IROC-Z
Engine: 5.7/350
Transmission: 700r4
Re: L98 with LT4 hotcam question
How exactly do tunes work on these cars? A chip? Also which valve springs and torque converter would be ideal for this setup?
08-01-2015, 04:43 AM
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Car: 86 Camaro
Engine: 355- hopefully a 5.3 this summer
Transmission: 700r4
Axle/Gears: 3.42
Re: L98 with LT4 hotcam question
get the HOT cam kit that comes with the LT4 valve springs and matching 1.6 roller rocker arms that fit under stock valve covers... but you will have to take the heads in to put screw in studs in and make sure the retainers clear the valve seals, at which point you will have spent enough money that you would have been pretty close to what a set of better aftermarket heads that come set up for the lift and breathe better right out of the box would cost..
08-01-2015, 08:39 PM
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Car: 92 Firebird, 91 Trans Am
Engine: L31 with HSR, LB9
Transmission: 700R4, 700R4
Axle/Gears: '99 10 bolt 3.90, '01 10 bolt 3.42
Re: L98 with LT4 hotcam question
Springs and converter are necessary. You could get away without a tune, but I don't recommend it. Been there, done that.
Tunes work through a small chip in the ECM.
Tunes work through a small chip in the ECM.
08-01-2015, 09:53 PM
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Car: 1988 Camaro IROC-Z
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