Here the only discrepency with that, I just bought a 1968 327 chevy, large journal forged crank, I beleive it is a steel crank, casting number 4672. It IS a forged crank, wide parting line, pings when tapped with a hammer. Did this come out of a corvette or camero SS? I have the entire motor(sb) if any stamped numbers would help.
No sir, you misread. The casting number, complete is: 4672, not 3914672. Yes, they are two different cranks. Mine is the four digit 4672, which under casting numbers says its a lrg. journal 327 nodular iron crank. I do beleieve it to be steel, could be wrong. But beyond a shadow of a doubt it is forged! I bought the engine, shortblock complete, balanced rotating assembly. But my forged crank part number is 4672 on front counter weight.
This is correct: 4672.......327.......forged..medium journal...3.25" stroke I know this as the cast cranks have a thin casting line where the two halves of the mold met when the crank was cast in the foundry. My crankshaft, #4672, has a wide parting line, looking as though the thin line was pressed out or ground down, where the forging process mashes that thin parting line. In a John Lingenfelter book I have he also notes the forged cranks can be tapped with a hammer and make a "ping" sound as compared to a "dull" thud when doing the same on a cast crank. I have no doubt that the crank I have is a forged crank (ping), but many sources state that in post 64'-65' applications, the only forged 327 crank was used in HP applications (i.e. 375 HP 327 corvette engine). The cam is still in place, no numbers visible on nose of camshaft to verify the grind number,that is what I'm dying to find out. Paid $150 for the shortblock and the crank is a casting (unmachined sides have sandy texture, but appears to be steel I will post pics sometime tomorrow. Have a good one bud!
Im new to this site, so if you could, how do i upload pics from either my phone or my pc to this page so you can see the crank?
Good deal brother, let me make a run real quick, then I will get those pics taken and uploaded.
Sounds like a plan.
Ok, I have pics uploaded to photobucket, either my pc or their site was giving me the fits! Go up to YOUR PHOTOS AND VIDEOS on my page, they didnt go under 327 crank for some reason., 11 photos. My name/username is samuel Ishmael on photobucket if it gives ya probs
Were ypu able to see the pics?
Yep, no doubt it's a forging... To make it easy just copy the link and paste it in your post..:thumbsup:
