Other than the port entry on the intake - they look like a port job by someone who has done it a few times, the polishing is symetrical and consistant, the guides are peaked and biased, the short side looks well blended. Without seeing them in person it looks like a decent job depending upon how much you paid for them.

 

well I'm starting to feel a little better about these heads, and I spoke the person I bought them from, he said he just had the port guy do the porting and polishing but not assemble them. I'm gonna get them flow tested soon and I'll post the results.

 

I don't think they look too bad. The intake ports really do look very funny. Maybe it's the light. The gasket matching looks horribly uneven. Everything else looks good from what I can see.

 

I'll post some more pictures of the intake ports, maybe some differnt angles will give a better idea.

 

sorry Have seemed to misplace my camera for now, but took the heads to get pressure checked, and flow tested. I'll let you know what happens.

 

okay can't find my camera still....but sent the heads out to the shop. Results: pressure tesed fine all the way accross.
Flow bench...256/161 at .550....WTF?!? How is the intake okay, but the exhaust horrible??! Any suggestions? Thats with stock valves. ugh.

 

It looks like the venturi diameters on the bowl were machined at 90 degrees like I do and opened up for larger valves. If this is larger than it should be for stock valves, the #'s will suffer.

Everyone has their own valve job recipe but if it is larger that 1.760, install larger valves.

Use some calipers and see what these measurements are.

I would get some larger valves and then do a good valve job and then blend the valve job ro the port work. Use an intake valve job with wide top cuts that radius into the chamber and then a 45 sealing angle with 2 bottom cuts 52, 55, 58, 60 or so and then a 70 or 75 below that and blend the 75 into the port work.

The exhaust is more forgiving and can handle a larger venturi diameter as long as you have a tight ebnough radius on the valve job. I would use a wide top cut with a 45 sealing angle and then an angle below that with a radius below that and then hand blend the bottom cut to venturi and hand blend the top cut to chamber.

Lloyd

 

OneFlyn95z28 is Ellis on this board.

 

Thanks for the input llyod, the valves are stock size, 1.94, 1.55 I believe. The machine shop is going to do pretty much what you are describing. Hope fully I will see a big improvement.

 

anaik, if thats the same guy from Ls1tech, then he pm'd me already. thank you though, I guess they are not his.

 

UPDATE* I got the heads flowed and pressure checked. Pressure was fine all the way accross. Heads flowed with stock valves at 256/161 at .550 lift.
Now after some seat work and bigger valves, they flow 270/191 at .550 lift.
Do you think these are good enough for 400rwhp? I know the cam will have alot to do with that, but will these heads support a 400rwhp cam? If not I will go with AI's 190cc package. If they are good enough I will have AI spec a cam for them. Any questions or comments?

 

Intake could be a little more, but exhaust looks good. I say they'd definitely support 400 rwhp.

 

alright, sweet! I can't wait to get this thing rolling.

 

Why do you think they are from Ellis? That's some BS.

Bret

 

Sounds like you are set on Ai stuff, so why not just ask them?