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FAST 78mm vs 92MM on LQ4

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Old 04-01-2008, 10:34 PM
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Default FAST 78mm vs 92MM on LQ4

anyone have any idea what kind of gains I could expect?
LQ4 truck engine
Id be going from a stock 78MM/jantzer ported stock TB to a 92/92
GTP stage 2 ls1 heads
TSP 231/237 cam
with a bad tune and mac equal lengths (being replaced by hooker LTs in the next few days) I made 412/396 to the wheels.

thanks.
Old 04-01-2008, 10:43 PM
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Is it ported???

If not get it ported before you install it it will be worth 20-25rwhp from what I'v seen.
Old 04-01-2008, 10:46 PM
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oops, i posted this in the wrong section.

youve seen a portes 92/92 increase 20-25 from an unported 78 on a 6.0?




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