Heads or Cam?

[Dark_5.0]

Originally Posted by dan_iowa76

Wow, thanks. I re-adjusted the rockers and before throwing the covers and plenumn back on, I did a compression check and couldn't believe my eyes. Everything was 155 plus or minus 5!! At that point, I couldn't get the car put back together fast enough to start it up. Low and behold, all 8 are hitting now. Thanks a million!! I guess the lifters needed some time to settle in even though I pumped the hell out of them while submerged in oil. Just got to fine tune now. Can't thank you enough. Merry Christmas. Maybe now I can have some holiday cheer!! ...........and by cheer I mean beer V/r

Glad I could help

[dan_iowa76]

Thanks, thanks, and more thanks, the car is tested and running great. Have some good feedback for ya'll- hopefully you find it useful. ....The intake valves are 1.9 and the exhaust are 1.5 or 1.6. Any larger, like 2.1, and the pistons would more than likely require some work. Also, there is plenty of clearance from valve to piston with a b-cam. Getting a larger cam could cause problems expecially if you are going for something crazy. The guy that did the heads for me is very reputable and has put hundreds of heads with valves like mine on mustangs and with no clearance issues. Finally, don't know why we had such dire results after carefully adjusting the rockers on the first time. I can only assume that it had something to do with the lifters needing break-in. 2d time was a charm!! V/r

[~The Jester~]

Originally Posted by dan_iowa76

Thanks, thanks, and more thanks, the car is tested and running great. Have some good feedback for ya'll- hopefully you find it useful. ....The intake valves are 1.9 and the exhaust are 1.5 or 1.6. Any larger, like 2.1, and the pistons would more than likely require some work. Also, there is plenty of clearance from valve to piston with a b-cam. Getting a larger cam could cause problems expecially if you are going for something crazy. The guy that did the heads for me is very reputable and has put hundreds of heads with valves like mine on mustangs and with no clearance issues. Finally, don't know why we had such dire results after carefully adjusting the rockers on the first time. I can only assume that it had something to do with the lifters needing break-in. 2d time was a charm!! V/r

I just gotta tell ya how important what Dark5.0 was talking about. In ONE summer I replaced 24 valves! Think about it, there's only 16 in there!

But, that's one of the reasons we make the pony's we do. Run it up to "melt down", and then come back 1/4 turn. LOL

Glad it worked out for you!!!!

[dan_iowa76]

Still runs great, just went through and readjusted the rockers again because they sounded a little loose like a sewing machine sounds. Noticed that some of the lifters are springy and some are solid. What does that tell me? Do I adjust the rockers differently for springy lifters than solid feeling lifters? Please reply, almost there!!! Thanks, dan

[~The Jester~]

They should all feel "solid". The springy ones are either weak, or haven't pumped up with oil yet. The longer you run it, the better it'll get. Make sure you adjust them ALL again after the car runs for 15-20 minutes with good oil pressure. It's a royal pain, but well worth it.