04-12-2009, 02:57 PM
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CC Member
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Join Date: Feb 2006
Location: Gore. New Zealand.,
SI
Cobra Make, Engine: DIY Coupe, F/T ,MkIV.
Posts: 808
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Not Ranked
What your really talking here is the 3.25" stroke or 3.40" stroke. If you like to rev the motor out & the sound it makes @ upper RPM then go 3.25". If you want more low down punch go with 3.40". There are lots of other mech reasons too- like rod ratio, cyl wall pressure etc.
Me, I would go with the 3.25" it 'sounds' nicer and isnt quite so 'harsh' on longer trips.---
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Jac Mac
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