Are these 1968 crank pulleys? If not, what are they?
01-06-2003, 09:48 AM
#1
Safety Car
Thread Starter
Member Since: Mar 1999
Location: VASS, NC, USA
Posts: 3,715
Likes: 0
Received 0 Likes
on
0 Posts
Are these 1968 crank pulleys? If not, what are they?
Here's is the deal
1. Just took the what I beleive is the original crank pulley of my 1968 L-36. (Non air, Non PS/PB)
The crank pulley is stamped steel, has a number of 3921923BM: What year/is this correct?
2. I ordered a crank pulley from GM resto parts: its a rough cast iron pulley. It has the number 38996 then 60 BM, then what looks like a casting date on it of 24697 (or 24G97). It doesnt have a solid face like the one I took off. Its heavy, about a inch smaller in diameter, has three "spokes" (instead of a solid face), and the belt grooves are much deeper than the one I removed. It also has what looks like "drill dimples" on the face one on side to balance the puley. What is this pulley for? It fits right on my crank like it belongs there
1. Just took the what I beleive is the original crank pulley of my 1968 L-36. (Non air, Non PS/PB)
The crank pulley is stamped steel, has a number of 3921923BM: What year/is this correct?
2. I ordered a crank pulley from GM resto parts: its a rough cast iron pulley. It has the number 38996 then 60 BM, then what looks like a casting date on it of 24697 (or 24G97). It doesnt have a solid face like the one I took off. Its heavy, about a inch smaller in diameter, has three "spokes" (instead of a solid face), and the belt grooves are much deeper than the one I removed. It also has what looks like "drill dimples" on the face one on side to balance the puley. What is this pulley for? It fits right on my crank like it belongs there
01-06-2003, 11:17 AM
#3
Safety Car
Thread Starter
Member Since: Mar 1999
Location: VASS, NC, USA
Posts: 3,715
Likes: 0
Received 0 Likes
on
0 Posts
Re: Are these 1968 crank pulleys? If not, what are they? (Flareside)
If this helps, here is the pulley I ordered from GM per parts thats the second pulley in question
https://www.spoperformanceparts.com/
https://www.spoperformanceparts.com/
01-06-2003, 02:22 PM
#4
Le Mans Master
Member Since: Aug 2000
Location: Semper ubi, sub ubi
Posts: 9,662
Likes: 0
Received 6 Likes
on
6 Posts
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Are these 1968 crank pulleys? If not, what are they? (MELVIN)
MELVIN,
I went to {Non-supporting vendor}.com and this is what they list for the first part number you have. I couldn't find anything to match the second number.
This probably doesn't help you much, but it appears to still be an item you can get from GM.
GM PART # 3921923
CATEGORY: Engine Crankshaft and Camshaft Balancer
PACK QTY: 1 CORE CHARGE: $0.00
GM LIST: $38.32
OUR PRICE: $21.84
DESCRIPTION: PULLEY
I went to {Non-supporting vendor}.com and this is what they list for the first part number you have. I couldn't find anything to match the second number.
This probably doesn't help you much, but it appears to still be an item you can get from GM.
GM PART # 3921923
CATEGORY: Engine Crankshaft and Camshaft Balancer
PACK QTY: 1 CORE CHARGE: $0.00
GM LIST: $38.32
OUR PRICE: $21.84
DESCRIPTION: PULLEY
