maverick75

what were the sizes of the valves?

thanks

my77stang

1.78 / 1.46 if memory serves

67coupe

my77stang is right about the size. If you are having a valve job and the valves need replacement you can have 1.94/1.50's installed for almost the same cost.

maverick75

yep i sure will, for now i was just testing out my simdyno

my engine
75 302
performer cam
performer intake
holley 4BBL 600CFM
65 289 heads
comp ratio10.0
w/manifolds






If anyone wants i can run you numbers on it.....not that accurate but i'd say close enough

my77stang

lol we did this awhile back and i ended up running about 50 sims for people LOL. they arent exact (like you said) but they ARE pretty close.

Brandontyler65

my valves are 1.85 int and 1.55 exh the guy at the cyl shop thats as big as i should go for a mildly modified application

my77stang

i stuck with the 1.84 1.54 in my 351w heads because it will help with low end nut. go too big and you loose it in the bottom - but i did extensive machine porting to open things up under the head of the valve.