From: "Finn Lassen finn.lassen@verizon.net" <flyrotary@lancaironline.net>
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To: flyrotary@lancaironline.net
Subject: Part specs
Message-ID: <9bd513a2-c7d1-ef0c-9d32-5aa97a21f8de@verizon.net>
Date: Fri, 6 Sep 2019 11:17:47 -0400
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I keep seeing incredible deals on e-Bay for parts like oil coolers, 
radiators, evaporators, alternators, etc.

However, most are vehicle specific, with no or few actual specs on the 
parts (size, etc.)

How do providers (manufacturers) of these items know what fits which 
vehicles?

Is there some secret catalog, download or website that provide actual 
physical dimensions or specs?

Case in point: I had decided to use 2 evap cores in my RV-4, but now 
again looking at using a radiator under the engine (more space for 
ducting in the O-360 lower RV-4 cowl for something like 13" wide, and up 
to 20" long, 2.5 to 3" thick with no cap). Yes, I can get something like 
that from Summit racing (universal or drag racing radiator), but for 
$375 or more. Yet I see stuff on eBay for $100 or less, but no physical 
dimensions.

Is the only solution to go visit a junk yard, other than knowing what 
others have used?

BTW, what happens when you lay down (at a 20 degree) angle a radiator 
that is designed to be upright?

Finn