#21  
Old 11-29-2022, 11:13 PM
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Mike S Mike S is offline
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I bought one just like that from Kauffman. On the race car I put it on top of oil pan gasket on the block and then used a bead of silicone over the tray before I put the pan on. Never had a leak.

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Old 11-29-2022, 11:20 PM
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Quote:
Originally Posted by Mike S View Post
My engine was a 74 400 and had no windage tray. Caps are not drilled for one. Lower dipstick tube was bolted to the top of the center cap.
I was thinking of a windage tray that I used on the race car. It mounts between the pan and block.
https://www.summitracing.com/parts/c...8/make/pontiac
If possible we try to stay away from sandwiching anything not absolutely necessary between the pan and block for a street build. If your block is a 74, the bosses should be cast into the main caps, you can easily drill and tap the mounting holes there. If not we have used factory head bolts with the threaded accessory studs for the main cap bolts. You can drill the corresponding holes in the factory or Tomahawk style windage tray and mount it with four nuts.... Just make sure the head bolts are close to the same length as your original main cap bolts.

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Old 11-30-2022, 02:10 AM
Dragncar Dragncar is offline
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Quote:
Originally Posted by Mike S View Post
My engine was a 74 400 and had no windage tray. Caps are not drilled for one. Lower dipstick tube was bolted to the top of the center cap.
I was thinking of a windage tray that I used on the race car. It mounts between the pan and block.
https://www.summitracing.com/parts/c...8/make/pontiac
I have a new one of those trays. 50$+ shipping.

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Old 11-30-2022, 04:43 PM
Tandyman Tandyman is offline
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I'm in the seemingly extra-long process of building 3 455's right now.

The 73 XA casting 485428 has a 3/4 length windage tray.
The 74 485428 casting has none.
The 75 YW 500813 casting also has no windage tray.

Glenn

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Old 11-30-2022, 05:59 PM
Steve C. Steve C. is offline
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That mirrors the information in the previous link, V-8's up though mid-1973


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Old 11-30-2022, 06:07 PM
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Quote:
The 73 XA casting 485428 has a 3/4 length windage tray.

The 73 XA have a non-baffled pan?



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  #27  
Old 12-01-2022, 09:51 AM
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John, all 3 motors had baffled pans.

Glenn

  #28  
Old 12-07-2022, 03:16 PM
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The Milodon tray uses studs with stand-offs, and can be used with most factory pans.

Windage occurs at lower RPMs as the stroke increases.

ALL engines have some degree of windage at all RPMs. (with few exceptions)

In some cases, windage can 'suspend' much of the oil within the block, and can starve the pickup of oil, or at least introduce air into the oil flow.

Aerated oil has more of a tendency to stick to parts, or at least slow the return of oil to the sump.

And that's all not taking into account parasitic losses.

IMO, unless there is a specific reason not to run one, make at least some type of effort to include one on every build.


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