Lower Intake Fit

[JerrySab]

Got my heads back from the machine shop, and am excited to get this engine back together. Among other things, the heads were decked, I'm not sure how much. I did a test fit without bolts and noticed a much wider gap between the heads and the lower intake than I was expecting. Is this gap too much? Or does getting it all torqued down to spec squeeze the mating surfaces together? That lower intake gasket also seems like there's a lot of opportunity for trouble if it doesn't seat just right.

 

[franklin2]

Attached is a screen shot from the Sven Pruett book. It has a chart with the specs for how much to mill the intake.

 

[JerrySab]

GREAT! thank you!

 

[gaz]

GREAT! thank you!

Your machinist should have asked for the lower intake manifold also. Dispite needing to fit, any time I've done heads on these, the machinist kept a grip of Al from the lower intake manifold port job.

 

[JerrySab]

Yeah, I’m surprised as well tbh, the place has a great reputation. Either way,glad to have caught it early thanks to y’all.