66 327 L79 pulley id#'s

[Marzio Cano]

Can anyone tell me if this pulley set up for my 327 L79 with no AC or PS is correct?

Water pump pulley: GM part#3770245
Crankshaft pulley: GM part#3858533
alternator pulley: GM part#3829387

Should I have a short or long water pump? And belt part #'s to match the above application if correct?

Thanks,

Regards, Marzio Cano

[Gary B.]

66 327 L79 V belt part #'s

Marzio,

I asked a similar question about belt part numbers for my 66 L79 last month and was told the following by Joe Lucia and Pete Lindahl.

The alternator belt was GM #3861946. This was a 3/8" X 54" belt of wrapped construction.

The captive belt (around the crank pulley and water pump pulley) was GM # 3837810, which was 3/8" X 34-13/32" and also of wrapped construction.

These belts are no long available from GM, but I've been told that Quanta Products has good repros.

I've also read more than once that in order for the above belt lengths to be correct, you need to be using the currect pulleys.

Gary

[Gary B.]

PS to my last posting: alternator pulley

Marzio,

To the of my knowledge you do have the correct alternator pulley number: GM # 3829387.

Gary