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Generation III Internal Engine 1997-2006 LS1 | LS6
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how to achieve 8.5:1 CR

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Old 05-16-2007, 12:59 PM
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Default how to achieve 8.5:1 CR
using 72 cc heads, what style pistons should i use to get around 8.5:1?
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Old 05-16-2007, 01:27 PM
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Originally Posted by C Murda
using 72 cc heads, what style pistons should i use to get around 8.5:1?
On a otherwise stock bore/stroke ls1 with 317 heads, you'd need about -12cc to get an 8.5:1 comp ratio. You should post up all your info for a more accurate response.
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Old 05-16-2007, 01:42 PM
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4.125 bore 4" stroke..427. heads will be ETP 41 ls7 heads
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Old 05-16-2007, 01:47 PM
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why so low? running a non-intercooled roots blower?
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Old 05-16-2007, 02:53 PM
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will be a single T88 turbo and a lot of boost
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