JustABuick
Active Member
- Joined
- Feb 13, 2013
- Messages
- 488
Hey everyone,
My car was getting a flutter on hard acceleration above 20psi (kind of sounded like a piece of paper flapping rapidly). I figured it was probably a lifted head or a busted gasket, so I pulled the engine, got the heads off, and the gaskets looked fine. Checked the cam and lifters, and they looked fine too. A friend of mine came to check it over who has been working on these cars since they were new, and we noticed on one of the heads (Can't remember if it was passenger or driver's side, i'll have to double check) the middle exhaust valve stuck up just a little bit higher than the others using a straight edge. They are iron Champion heads with larger valves (probably ones that come with Champion heads...they were on the engine already when I bought it).
I don't know what else would be causing the issue, new plugs, coil pack, and wires were used before the engine was pulled, none of those fixed it.
Could it be the valve? Would an uncut or stretched valve cause that issue? Should I get new valves or just get a machine shop to cut that one down, mill the heads, and reassemble it?
Thanks,
Kelly
My car was getting a flutter on hard acceleration above 20psi (kind of sounded like a piece of paper flapping rapidly). I figured it was probably a lifted head or a busted gasket, so I pulled the engine, got the heads off, and the gaskets looked fine. Checked the cam and lifters, and they looked fine too. A friend of mine came to check it over who has been working on these cars since they were new, and we noticed on one of the heads (Can't remember if it was passenger or driver's side, i'll have to double check) the middle exhaust valve stuck up just a little bit higher than the others using a straight edge. They are iron Champion heads with larger valves (probably ones that come with Champion heads...they were on the engine already when I bought it).
I don't know what else would be causing the issue, new plugs, coil pack, and wires were used before the engine was pulled, none of those fixed it.
Could it be the valve? Would an uncut or stretched valve cause that issue? Should I get new valves or just get a machine shop to cut that one down, mill the heads, and reassemble it?
Thanks,
Kelly