Quote:
Originally posted by Nixon1
I suppose you can do work to the stock heads...but they really arent anything special. Waste of money if you ask me. Might actually make you run out of breath if you have to do rpms that high fairly regularly.
New heads will gain you a LOT of power....maybe you can find a good used set to cut costs, like on ebaymotors... 2.02 intake valves are too big for several reasons I believe... But the main one is they wont work.  The 2.02's will hit your stock pistons. And if they don't, they'll come SO close that it's insanity to try to run them. I know...I tried. The thin layer of play-doh on the piston was all ripped up by the valve. 1.94 is about the biggest we can go I believe without aftermarket pistons, or widening the brow on the factory pistons.
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Yeah right.....LMAO...........My modified stock E7's are awesome.
Ported, Polished milled, blended bowls, trick flow springs and a 3 angle valve job.
I knocked off 4 tenths of a second in the 1/4 with the heads alone. and picked up 3 mph. Hows that for a waste.
Keep the stock valve size. Putting larger valves in E7's is a bad idea for a # of reasons.
Along with the heads slap an Explorer GT-40P intake on there cause the stock one sucks. Ported heads and the explore intake complement each other nicely.