Re: Hemi & ATI balancer
[Re: AndyF]
#835655
10/22/10 12:28 PM
10/22/10 12:28 PM
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Joined: Jan 2003
Posts: 17,864
S.E. Michigan
ZIPPY
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S.E. Michigan
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I use a 3 ring on my wedge. The shorter crank pulley I use is a Moroso underdrive, but it's actually a tad bit too short and I had to put around a 1/8" shim behind it.
Rich H.
Esse Quam Videri
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Re: Hemi & ATI balancer
[Re: hemicop]
#835657
10/23/10 02:33 PM
10/23/10 02:33 PM
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U.S.S.A.
JohnRR
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Quote:
It's a single groove pulley, as is the water pump. The outer "lip" of the water pump pulley lines up with the "lip" of the crank pulley that;s nearest the engine (aka engine side "lip".). My concern spacing just the pulley out is that it may exert too much leverage on the water pump shaft/bushing leading to premature wear. That's why I was thinking I'd have to resort to spacing out the pump housing. BUt the responses Do help so far. Thanks!
Are they hemi pulleys or wedge pulleys or a combination of the 2 ?
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Re: Hemi & ATI balancer
[Re: hemicop]
#835658
10/23/10 02:40 PM
10/23/10 02:40 PM
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Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
64Post
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master
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Baltimore/Denver
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Quote:
It's a single groove pulley, as is the water pump. The outer "lip" of the water pump pulley lines up with the "lip" of the crank pulley that;s nearest the engine (aka engine side "lip".). My concern spacing just the pulley out is that it may exert too much leverage on the water pump shaft/bushing leading to premature wear. That's why I was thinking I'd have to resort to spacing out the pump housing. BUt the responses Do help so far. Thanks!
Then change the crank pulley and be done with it. All you need is the DMI pulley, a 2" crank bolt (you should already have this if you're using a 3 ring balancer), (6) 5/16" X 1-3/4 hex head bolts, and a shorter belt. I'm running the single groove set up, too. I've done all the leg work on this parts-wise, but I can't promise the parts will work unless you verify the difference is 5/8". If it is you'll be able to use the new pulley right out of the box.
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Re: Hemi & ATI balancer
[Re: JohnRR]
#835659
10/23/10 02:44 PM
10/23/10 02:44 PM
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Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
64Post
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master
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Baltimore/Denver
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Quote:
Quote:
It's a single groove pulley, as is the water pump. The outer "lip" of the water pump pulley lines up with the "lip" of the crank pulley that;s nearest the engine (aka engine side "lip".). My concern spacing just the pulley out is that it may exert too much leverage on the water pump shaft/bushing leading to premature wear. That's why I was thinking I'd have to resort to spacing out the pump housing. BUt the responses Do help so far. Thanks!
Are they hemi pulleys or wedge pulleys or a combination of the 2 ?
What is the difference, John? Bolt pattern? 
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Re: Hemi & ATI balancer
[Re: 64Post]
#835660
10/23/10 05:16 PM
10/23/10 05:16 PM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
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I Win
Joined: Jan 2003
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Quote:
Quote:
Quote:
It's a single groove pulley, as is the water pump. The outer "lip" of the water pump pulley lines up with the "lip" of the crank pulley that;s nearest the engine (aka engine side "lip".). My concern spacing just the pulley out is that it may exert too much leverage on the water pump shaft/bushing leading to premature wear. That's why I was thinking I'd have to resort to spacing out the pump housing. BUt the responses Do help so far. Thanks!
Are they hemi pulleys or wedge pulleys or a combination of the 2 ?
What is the difference, John? Bolt pattern?
No depths , mid 68 - 71 hemis used a different top and bottom pulley than 66-mid 68 , the 66-mid 68 use a wedge water pump pulley and an even shallower crank pulley.
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Re: Hemi & ATI balancer
[Re: JohnRR]
#835661
10/23/10 08:28 PM
10/23/10 08:28 PM
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Joined: Apr 2008
Posts: 1,141
Phoenix,Az.
hemicop
OP
super stock
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OP
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Phoenix,Az.
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Quote:
Quote:
It's a single groove pulley, as is the water pump. The outer "lip" of the water pump pulley lines up with the "lip" of the crank pulley that;s nearest the engine (aka engine side "lip".). My concern spacing just the pulley out is that it may exert too much leverage on the water pump shaft/bushing leading to premature wear. That's why I was thinking I'd have to resort to spacing out the pump housing. BUt the responses Do help so far. Thanks!
Are they hemi pulleys or wedge pulleys or a combination of the 2 ?
The crank pulley is a 440 unit from "440 source". The water pump pulley, I was told is a 440 unit also so I'm thinking it should all line up.
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Re: Hemi & ATI balancer
[Re: hemicop]
#835662
10/23/10 08:40 PM
10/23/10 08:40 PM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,043
U.S.S.A.
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Quote:
Quote:
Quote:
It's a single groove pulley, as is the water pump. The outer "lip" of the water pump pulley lines up with the "lip" of the crank pulley that;s nearest the engine (aka engine side "lip".). My concern spacing just the pulley out is that it may exert too much leverage on the water pump shaft/bushing leading to premature wear. That's why I was thinking I'd have to resort to spacing out the pump housing. BUt the responses Do help so far. Thanks!
Are they hemi pulleys or wedge pulleys or a combination of the 2 ?
The crank pulley is a 440 unit from "440 source". The water pump pulley, I was told is a 440 unit also so I'm thinking it should all line up.
The balancer plays a huge role in this, if the hub is thicker than a stock wedge balancer there is no way you are going to get it to line up without a bunch of work. I'd be looking at a different lower pulley if you are set on your waterpump pulley. One thing you need to think about also is clearance to your radiator if you space out the waterpump.
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Re: Hemi & ATI balancer
[Re: copchaser]
#835664
10/23/10 10:24 PM
10/23/10 10:24 PM
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Joined: Apr 2008
Posts: 1,141
Phoenix,Az.
hemicop
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OP
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Phoenix,Az.
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Quote:
I run ATI balancers on all of my big motors. Try a stock street hemi crank pulley, or a 69/older small block crank pulley. If you run the small block pulley you'll need a narrow spacer. Mancini sells the spacers, or rob one off of a old bigblock industrial engine.
But I won't need the spacer if I use the Hemi Pulley? What's the part no.?
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Re: Hemi & ATI balancer
[Re: JohnRR]
#835666
10/24/10 02:33 AM
10/24/10 02:33 AM
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Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
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Baltimore/Denver
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Quote:
One thing you need to think about also is clearance to your radiator if you space out the waterpump.
Fan-to-radiator clearance is why I did all the legwork on my fitment. Early B's are notorious for lack of clearance, then add a 3 core and the Jag fan clutch and it gets even tighter.
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