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Old 05-19-2004, 04:49 PM
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What Is Reverse Flow Cooling?

I seen a pair of heads for an LT-1 Corvette and someone said they were reverse flow cooling. What exactly is reverse flow cooling and how does it work? What is the advantage of this type of cooling? Thanks.

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Old 05-19-2004, 04:52 PM
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The coolant flows through the heads first, then the block. Keeps the heads cooler, less chance of detonation....

Tim
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Old 05-19-2004, 05:05 PM
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Are the water jackets in different locations? Or would these type of heads work on the older style small blocks? I'm told these are for '92 and up motors.
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Old 05-19-2004, 05:12 PM
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They can be converted to run with older blocks, but bolt on is only with the 92-96 LT1 engines.

Tim
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Old 05-19-2004, 05:12 PM
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While they will bolt on to older blocks, the cooling passages don`t line up, so no, they won`t work on older small blocks.
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Old 05-19-2004, 06:01 PM
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Can these be used on any '92-'96 small block, including 305's?
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Old 05-19-2004, 06:10 PM
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Only LT1 engines, unless you have the heads converted (drill coolant passages)
As far as I know the LT1 came in 5.7L, and 4.3L only (Camaro, Firebird, Caprice and Corvette).

Tim
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Old 05-19-2004, 07:28 PM
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What does the "LT-1" stand for, what is the difference between them and a regular 350?
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Old 05-19-2004, 08:18 PM
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Do a qweb search...there is pages upon pages of indepth info out there....try this for starters:
http://www.fierolt1.com/technical_documents_main.htm

http://www.autosite.com/garage/encyclop/ency02f.asp

http://www.n2performance.com/cgi-bin...10&action=Read
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Old 05-19-2004, 11:50 PM
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LT-1 (notice the hyphen) was the GM option code for the "special-high-performance" 350 offered in Corvettes & Camaros in the very early '70s. They used the same blocks as the low-performance 350's of the time, but made 60-70 more horsepower.

The '92-'96 LT1 (no hyphen) was also a high-performance 350, but it was based on a block with a different cooling system design (reverse-flow) from that of the standard 350's from the same period.
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