Thread: 327 or 350?

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Should be a motor to have fun with. As I said the motor is nearly 40 years old and it's only the block that is 327, it is a late model 327 so it shares the same large bearing diameter as the 350. So there is allways the posibillity that somebody at some stage in the engines past put a 350 crank in that block. The real cherry would be if, it turns out to be a forged steel one. Anythings possible.

Know how to tell a forged steel crank from a cast one from just looking at it sitting in the block ?

CAST thin parting line on crank throws.

FORGED Wide flash marks on crank throws.

It does not hurt to look at a few things while the pan is off, Check the rods to see if they are discoloured, (BLUED ) it wont hurt to find this now as to when you start her up.... Check the oil pickup to see if it is blocked up with gunge, See how much sludge is in the bottom of the pan. Any loose parts ? Like lifter circlips the odd roller out of those roller bearing rockers, glittery oil (metal filings) Maybe pull the oil pump out and check the clearances. What ever you do.... just make sure the pump driveshaft is back in befor you drop the distributer back in.