06-30-2013, 04:41 AM
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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
Rick , according to my Boss 302 Info...
Standard Boss 302 5.155" rods weight is :581/593 grams ( Same as 289 HP )
For balancing purposes the Big end weight is 421 grams ( per rod ), Small end is 166grams.
On the basis of those weights the total bobweight per journal for a stock Boss 302 being blueprinted with stock pistons etc was 1838.8 grams.( Thats for cross drilled crank- use 1827.8 grams for non- cross drilled to account for the oil weight factor )
Have a couple of Scat 5.4 rods here somewhere I could weigh, but they are all 927 pin variants.
Think we have discussed this motor already, are you trying or hopeing to work with your existing crank, in which case you should be able to weigh the old reciprocating components in order to figure what the original bobweight would have been....as long as your staying with the original damper/flywheel etc..
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Jac Mac
Last edited by Jac Mac; 06-30-2013 at 12:53 PM..
Reason: additional bob weight info.
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