Quote:
Originally Posted by b-man
<snip for brevity>
If you’re set on running the 2801 I’d advise cutting the heads for compression or better yet swap them for a set of ‘68 -‘70 350 heads after converting to screw in studs. It’s going to be hard to cut those 6X-4 heads enough to raise your compression by on point.
Good valve springs are great for controlling the valves and should be part of most any cam swap but when you put the wrong cam in your engine they won’t help resolve that.
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X2 on the ‘68 -‘70 350 heads or as this year 350 should have large valve heads stock, maybe 16 / 62 / 12 / 13's. Only thing about these heads is there is no upper boss on the heads for the stock alternator / power steering mounts of the '75. So the accessory mounts would need to match the heads. Your going to tear off the front & top of the engine anyway so...