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December 16th, 2004, 07:13 PM
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#1 (permalink) |
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Guest
Posts: n/a
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are the exhaust ports on a stock big blocks 455 olds the same as a small block, that is that the center ports are close togther?
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December 16th, 2004, 10:07 PM
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#2 (permalink) |
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Senior Member
Join Date: Feb 2004
Location: Atlanta, GA.
Posts: 122
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The port configuration is the same. The bolt pattern is the same also. However, the ports are larger on the big block engine.
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1966 Ninety Eight Convertible - 425 Tri-Carb, Factory Dual Exh, Switch-Pitch THM400, 3.54 Posi. 1966 Catalina Wagon - 421 Tri-Power, M21, 4.11 Saf-T-Trac, 8 Bolt Wheels 1989 IROC-Z - 5.7TPI |
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