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darrell · 09-01-2020, 05:30 PM

i goofed on that the 65 heads had the small pushrod holes.these are 66 valves that take the rail rockers.the 66 rail rockers should fix the problem otherwise you will have to change to 65 valves.its been awile but i think you have to use 65 springs as well with 65 valves.

09-01-2020, 05:30 PM	#3
darrell Senior Member Join Date: Dec 2010 Location: p.e.i. Posts: 1,065	Re: '65 289 rocker arm geometry help i goofed on that the 65 heads had the small pushrod holes.these are 66 valves that take the rail rockers.the 66 rail rockers should fix the problem otherwise you will have to change to 65 valves.its been awile but i think you have to use 65 springs as well with 65 valves.