here are a couple of pictures i took from start to finish well kinda finish on porting a set of 862 heads. they will recieve a valve upgrade and be flow benched once done
stock
120 grit
400 grit
600-1000 grit and a mirror finish
same is being done to the exhaust. this head alone has taken over 12 hrs of work lol
pic was taken last night
Last edited by kha4079; 07-22-2011 at 06:23 PM.
looks perdy.
Very nice
I need to send you mine yours looks great. Good job man
the texture of the tunnel is very important to keep the fuel mixture tumbling. What you have the will lead to puddling and droplets forming, IIRC.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
So should he put the intake back to like a 400 grit texture.
exhaust is nice to have that smooth years ago when ppl ran carbs the texture was very important, today with the pressures of fuel injection it isnt as critcial
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2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
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it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
I can't wait until they start with direct port injection on the LS series heads. Talk about opening up a ton of HP possibilities. Might need a bigger pump.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
thanks guys im almost done with the head im hoping to get at least 260+cfm @ 600lift on the intake and 200+cfm@600 lift on the exhaust
more pictures the exhaust is done now im starting on the combustion chamber
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