Just ran into a deal on some iron eagle 49cc heads. Should bring compression to 10.75:1. With 180cc runners. What is the thought on where these will run.
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Any reason why the 610 and 416 heads I already have are a problem running under 4000 rpm. I was under the impression they would be good for the compression but they got the reputation for bad numbers above .420 lift and die off around 4700.
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I'm no stranger to building playtoy engines and putting together a performance package pretty well.
But this time around I'm goin the other direction for as much torque down low as possible with good fuel economy.
The project in question this go round is a 1980 c10 with the dreaded integral...
Been lurking and searching for a while and finally joined. I have a deep passion for these [emoji90]boxes. I've had quite a few over the years and starting a lil collection back up again. I'm not a fan of new stuff, I like old trucks that are built to be driven.
This is my 1978 c20...