[zion]

here are the results from my compression check. keep in mind the my motor was recently rebuilt in june. i am concerned about cylinders 1,5,6

1-140
2-150
3-155
4-155
5-120
6-140
7-155
8-150

Also the shortblock what professionally rebult. but i put the heads and everything on myself.

[Mr coupe]

invest in a leakdown tester, with that you can pinpoint were you are losing compression in each cylinder ie intake valve, exaust valve or rings

[zion]

so my valves could cause a leak. if so i should tell you guys that to me my heads have been suspect since i have had the car. see the dude i brought the car from a year ago brought the heads from some place that had some work done to them milled down or something. so check this idea out. i plan on putting some edelbrock heads on here in january, right and when i do i will do another compression check and if the compression is still out of wack i will just get me an dss racing cnc level 306 or 331 shortblock.

[zion]

also i have another question how does a leakdown tester actually work.

[zion]

so does anyone know if it true that the intake or exhaust valves on cylinder head could cause compression problems????

[systronic]

well, im no expert by any means, but consider this:
if you have an intake or exhaust valve that is floating, or staying or popping open when a cylinder is on its compression stroke, some of the power is going to escape through the open valve, i.e. loss of compression.

[zion]

thanks systronic for that info