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mustangcobra_91 · 10-24-2003, 09:18 AM

your 1 5/8 headers will not work with the p heads. you will have to ding some of the collectors. Has nothing to do with the exhaust ports. The spark plug on a p head is more straight into the combustion chamber.

10-24-2003, 09:18 AM	#14
mustangcobra_91 Registered Member Join Date: Feb 2001 Location: amarillo tx united states Posts: 10	your 1 5/8 headers will not work with the p heads. you will have to ding some of the collectors. Has nothing to do with the exhaust ports. The spark plug on a p head is more straight into the combustion chamber.