Lemans rod weights 7/28/00 and specs etc

6200 series Ford Part Numbers

427 Rods Richard D 7/28/00  Big Ends Ave 575 grams w/stock bolts w/o washers, Pin End Avr. 263 grams. These were used on a $ C5AE-6300-C Steel Lemans Crankshaft(steel w/threaded oil galley plugs). Reconditioned at 65# torque w/oil per Ford Spec on original Fasteners. New alignment dowels installed. 2304V20 bushings install and fit to pin .0007.

428 Rods Tom M 7/28/00  Big Ends Ave 601 grams w/after market bolts w/washers, Pin Ends Avr. 259 grams. Used on 428 Crankshaft 1UA 428 cast in a 427 SO Block. Rod bolts come very very close to touching lower cylinder bore area. Check for clearance. This crankshaft also has the hatchet iron sleeve/spacer behind the dampner. The Casting number on the Hatchet is C9AE-6A360A (part number is C9ZZ-6359-A)

Also researched this date were rods for past balance jobs

Jeff M  427 502 big end & 233 pin end

Charles H 428 506 big end & 235 pin end

Connecting Rod general information

George

Additional information & specs;

Big End 2.5907/2.5915  Max out of round is .0004 and bore taper .0004 also pin end housing bore for bushing should be 1.0375 (spec is 1.028/1.038) and the installed id of the bushing should be .09752/.09755 but check to piston pin for correct clearance. WE like .0004/.0008.  Cap aligns with concentric dowels. Bolt threads are 7/16-20 and always chase the threads to be sure they are perfect. Stock us a 7/16 bolt with a necked down shank. You can replace with a heavier bolt with a straight shank like a NASCAR ARP bolt. You will need to rebalance the rods with the new bolts installed as they are typically 25 grams heavier and if you take that times 2 you will know the net effect on the Bob weight increase.....50 grams and you will need to rebalance crankshaft assembly.9