First Generation Firebird-L Mailing List ......................................................................... Larry, Thanks for digging in and sorting that out! David
________________________________ From: Larry Diede <[EMAIL PROTECTED]> To: [email protected] Sent: Wednesday, October 22, 2008 2:00:02 PM Subject: [FGF] Research findings: Are Pontiac engines internally or externally balanced? First Generation Firebird-L Mailing List ......................................................................... List, First, hanks to all who reponded. I called several builders that were listed in Jim hands book and this is what I found out: ALL PONTIAC ENGINES CAME STOCK FROM THE FACTORY WITH A 6 INCH-OZ. EXTERNAL BALANCE IN THE FLYWHEEL OR FLEX PLATE. The confusion arises in that many prepared race engines have been converted to internally balanced engines by adding weight to the crankshaft. Examine the stock flex plate or flywheel and you will see holes drilled on one side (or larger on one side). Put them on a center balance and they will be heavy by 6 in/oz on one side. Also, if they were totally neutral or in other words internally balanced there would be no need for the staggered bolt patten on the rear cranksaft bolts. The staggered pattern requires that the fly wheel and flex plate be instlled in only one position. I hope this helps set the record stright. I welcome any additional discussion on this. regards, Larry (Denver) ------------------------------------------------------------------------ Submissions to Firebird-L: <[email protected]> Unsubscribe from Firebird-L: <[EMAIL PROTECTED]> Help: <http://FirstGenFirebird.org/firebird/Firebird-L.html> Classifieds: <http://FirstGenFirebird.org/ubb/> Owner Pictures: <http://FirstGenFirebird.org/show/> Donations: <http://FirstGenFirebird.org/store/cart.mv?999999> FGF Merchandise: <http://FirstGenFirebird.org/store>
