Engine builders please help

[wrathchild]

PLease read over this and reply. I am pulling my hair out. I put together a motor. New everything. Block bored, 10:1 pistons alot of good stuff. Got it all together in the car got it started and running. At start up it sounded great but, as it warmed up i got some really bad and sometime weird rocker noise. The weird noise kinda sounded like a squeak or something along that line and only between 2200 and 1200 rpms. So this was about 2 weeks ago and since then i have adjusted the rockers about 20 times. I recently pulled the lower intake to check the lifters and when i did i found the lifters that i had received were about 1/8"taller than stock. Now i am running twisted wedge heads and trick flow says a 6.75 pushrod with .15 tolerance either way. So I was running 6.8 pushrods and with the taller lifter i was over the limit. Was like i was running a 6.925 pushrod. So i compensated with a shorter(6.65) pushrod. This would be like me running a 6.775 pushrod with the taller lifter. Well within the limits trick flow gives. Got it all back together today and took it out for a drive. The same thing happened at startup it ran nice and quiet but as it got up to operating temp it started making the same noises. So i came home adjusted the rockers and took it back out. The same noise. O ya i also went from 10-30 to 20-50 thinking that with a thicker oil it would quiet it up. It didnt. So whats my problem here? I think i have a lifter that is collapsing when the motor gets warm and as the oil thins out. Please guys help me out here. I am about ready to put a 8lb sledge into every body panel on my car.


306, 10:1 CR, twisted wedge heads, track heat intake, stage 1 cam, 1.6 trick flow rockers, 30 lb injectors, 70 mm TB, 76 mm MAS, 255 lph fuel pump,1 5/8 shorties, x pipe, flowmasters, 3.55's,



[This message has been edited by wrathchild (edited 10-13-2001).]