Does anyone know if the ROD journal on the 400 crank is the same size and a 350? I know the main journals are bigger on the 400 but what about the rod journals. If they are different, it will make my quest for 6" rods far more expensive!

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'83 Trans Am. 400 CID, 224/234 crane cam, Summit aluminum roller rockers, hand ported intake, home bored 2.09" (53mm) throttle bodies, MSD 454 injectors(75 lb/hr), Holley 255LPH fuel pump, custum modded FPR w/Vacuum port added, Edelbrock TES headers, empty cat, SLP 3" stainless steel cat back, stock ECM & chip. Borg/Warner T-5 World Class, 12" Corvette rotors and clipers, GTA 16" wheels, South Side Machine subframe connectors, 1LE sway bars, 3.45 ring and pinion, Alpine sound.
Best E.T. 13.532
Best MPH 102.24

 

Tom,

They are the same.

BOR

 

You got it Tom. The 400 rod journals are the same as your standard large journal 350. Only the mains are larger on the 400, and of course the 400 rod is 5.5 inches instead of 5.7 inches.

 

GOOD news! Thank you guys.