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Old 06-06-2012, 04:57 AM
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sbc 327 build

i have a sj 327 that has stock bore flat top pistons, patriot performance iron 185 cc vortec heads with 64 cc cumbustion chamber, comp thumpr cam, weiand stealth high rise vortec intake, comp cam magum steel roller tip rocker arms and i wanted to know at about what hp and trq range i might be in. im looking forward to you guy answers, thanks in advance

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Old 06-06-2012, 05:16 AM
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The best way to find the estimated power from a 327 is to find the dyno results from a similarly built 350 then multiply the 350 output by 0.93 to get the 327 output.

You should include the cam specs as there are a few different thumpr cams.

Compression will be low (for a big cam). A 327 with flat tops and 64cc heads will make around 9.4:1 cr.


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Old 06-06-2012, 07:52 AM
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Run the car in the quarter and get a time. HP figures are for people who like to bench race at the drive in.
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