Just got done reading this thread: viewtopic.php?f=1&t=60392&p=462755&hilit=exhaust+porting#p462449
Very cool thread.. obviously alot of well informed people on this board and I appreciate that. I just got my head back from the machine shop and I'm wondering what work I should do to it.
It's already had a 3 angle valve job and milled 0.25 (if I remember right). The pistons are at .005 deck height and I was targeting 9.0:1 compression ratio. The rest of the engine will have Comp Cams 268-like custom grind (loved that cam in my 302), header and dual exhaust and so far unknown carb.
My question...
Should I open up the exhaust ports to match the gasket? Either bigger or just radius what's there.
How about opening up around the valves and polishing or at least smoothing the combustion chambers. I can't believe how rough they are!
I'll do all this myself. I've got more time than money to spend. If I left anything out, ask away!
BTW, just got the bottom end put together after going 40 over with all new parts from Egge.com. Very cool guys to deal with.
Thanks!
Very cool thread.. obviously alot of well informed people on this board and I appreciate that. I just got my head back from the machine shop and I'm wondering what work I should do to it.
It's already had a 3 angle valve job and milled 0.25 (if I remember right). The pistons are at .005 deck height and I was targeting 9.0:1 compression ratio. The rest of the engine will have Comp Cams 268-like custom grind (loved that cam in my 302), header and dual exhaust and so far unknown carb.
My question...
Should I open up the exhaust ports to match the gasket? Either bigger or just radius what's there.
How about opening up around the valves and polishing or at least smoothing the combustion chambers. I can't believe how rough they are!
I'll do all this myself. I've got more time than money to spend. If I left anything out, ask away!
BTW, just got the bottom end put together after going 40 over with all new parts from Egge.com. Very cool guys to deal with.
Thanks!