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#10
08-31-2012, 03:20 PM
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Ram Air V head development
Here is a better understanding of the tunnel port heads. The article should help you understand why most racers went back to the Ram Air IV heads.
The Ram Air V program was spear headed by Tom Nell and Herb Adams in 1968. They wanted a SCCA Pontiac to run in the program. Their 1971 - 1972 Trans Ams would have been a high compression 455 with Ram Air IV heads. These would have been rocket ships to run head to head with the LS-6 Chevelles. High compression 455 Ram Air IV is what the Blackbird began with in the March 1971 Popular Hot Rodding article. The Ram Air V heads just did not work as well as the IV's. Tom Nell designed the camshaft for the Blackbird. These same Ram Air IV heads are still there.
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1968 Firebird Ram Air, "Jim Wangers' Black Bird" 1968 GTO Convertible 2002 Corvette Z06 Last edited by Dr. Eric M. Schiffer; 08-31-2012 at 04:01 PM. |
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