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1970 Chevelle Malibu "400" Clone

I was worried about why it was there but my buddy has removed it/drilled though it many times. Seems like a waste of material/silly place to put your company name
 
Lapped the valves last night (except the intake I am waiting on). Back cut the exhausts today and reassembled on head before heading to work at 7. Normally don't lap the valves but I was worried about the couple of places I slipped with the sanding roll. Every one had a nice sealing ring on the valve and seat.
 
I like to lap the valves, even on new heads, because you can see if you are getting 100% contact all the way around, and if its contacting the correct place. And to see if you screwed up porting like you said... ha ha
 
Is there some sort of Intakes Anonymous club you can join to help with that? ;)

Nice work with the clay, some people don't use the clay and then you can't see the radial clearance. I have had to fly cut pistons before just because of radial clearance.

What oil pan you using?

Moroso makes a nice 1 piece Mark IV gasket that clears the stroker crank. It appears its already on though...
 
do you match based on lining up the mounting bolts with the gasket, then head, then manifold, or is there another more precision way?
 
I know how I do it. But I’m pretty sure John is smarter than me, so…

:popcorn:
 
76zimmer said:
do you match based on lining up the mounting bolts with the gasket, then head, then manifold, or is there another more precision way?
Click to expand...
I like u the intake gasket with the head runner and bolts to see the gasket match. Then Laid it on the intake after dying it with machinest blue. I then scribed it with an awl held perpendicular to the surface of the intake so it will make a slightly smaller than the gasket. Now took a big straight alum burr to match it to the line at maybe a 30 deg till so it is just at the top. Then I am taking a smaller flame burr to match it up further into the port to were it makes a seemless transition. I am going to finish with a 60 grit sanding roll. Actually the ports likely would have worked fine before (there was not area of the head hanging into the intake port). Also the intake actually seems to neck down at the port exit. I have about 2 hours in it so far. I will try and post a picture.
 
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