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Old 04-29-2013, 03:53 PM
454C10 454C10 is offline
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781 heads typically have rotators under the exhaust springs which are normally replaced with thick spacers when stronger springs are used. The springs have a recommended in stalled height so you can used that when you install them. The 268h is a little to big for 7.7:1cr and requires more stall and a 3.55 gear. I would get the 260h if you want to get a kit. What gear, transmission, and stall are you going to use?
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