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65f1005.0 · 09-23-2008, 12:09 AM

I have a stock 91 5.0 HO short block and i have 210cc heads and 2.02 valves and i need a cam with a 3,000-6,250 power band. The cams that i want to run will not clear the pistons. As of, i am settling upon the XE274HR that has a 2200-6200 rpm range and .513/.513 lift with a 1.6 ratio rockers. The duration is 276/282 with 1.7 ratio and i awsume is the same with 1.6 ratio? any suggestions? or, experience? c'mon guys somebody has to have factory unnotched pistons with these valves.
P.S.- i know the 210cc heads are to big for 302 displacement but a 408 will happen in the future.

09-23-2008, 12:09 AM	#1
65f1005.0 Registered Member Join Date: Sep 2008 Posts: 1	cam help with 2.02 valves!! I have a stock 91 5.0 HO short block and i have 210cc heads and 2.02 valves and i need a cam with a 3,000-6,250 power band. The cams that i want to run will not clear the pistons. As of, i am settling upon the XE274HR that has a 2200-6200 rpm range and .513/.513 lift with a 1.6 ratio rockers. The duration is 276/282 with 1.7 ratio and i awsume is the same with 1.6 ratio? any suggestions? or, experience? c'mon guys somebody has to have factory unnotched pistons with these valves. P.S.- i know the 210cc heads are to big for 302 displacement but a 408 will happen in the future.