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stock l98 or vortec?

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Old Jul 22, 2007 | 09:09 PM
  #1  
91greenbird's Avatar
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From: southern maryland
Car: 2012 Ram express
Engine: 5.7 hemi
Transmission: auto
Axle/Gears: 3.55
stock l98 or vortec?

Looking for a cheap head upgrade which are better stock iron l98 heads or vortecs?
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Old Jul 22, 2007 | 09:39 PM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Better for what?

As long as you don't mind spending the bucks for a Vortec specific intake manifold, and either limiting valve lift to .480" or having the heads modified to take more, the Vortecs would be considered superior in all other respects.
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Old Jul 22, 2007 | 09:42 PM
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From: Baltimore, MD
Car: 09 Cobalt SS Sedan. 92 Z28 vert
Engine: 2.0T EFR6758; 5.0TT T3/T4 8psi
Transmission: F40; 700r4
Axle/Gears: 3.76 LSD; 3.23 posi
Re: stock l98 or vortec?

the vortec heads are highly praised by many people. The only negative is the special intake bolt pattern. I have vortecs. No complaints, but I've never driven an L98 to compare.
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Old Jul 22, 2007 | 09:50 PM
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From: Casselberry, FLA
Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Re: stock l98 or vortec?

Originally Posted by 91greenbird
Looking for a cheap head upgrade which are better stock iron l98 heads or vortecs?
What about the 5-7 kid favorite of the LG4 heads? Don't they beat the L98 heads?
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