im not going to use the name of the shop as i am still giving them a chance to make things right. heres what happened: fresh motor, bought new rhs la-x heads and i broke in the cam with no problems. added inner springs (comp 978 ) and was checking the timing curve when a valve stuck.
engine had about 45 min run time on it. pulled cover and everything was dripping in oil as it should be. bent a pushrod and exhaust #7 valve stuck half open, smacked piston pretty good. 20* timing the whole time.
called the guy and he admitted to putting 8mm valves in 5/16 guides. so i sent the heads back and he "fixed" them. put them back on and after letting the engine warm up for about 15 the #7 intake stuck and caused all the same carnage.
questions:
1. any way this is my fault?
2. coincidence that its the same cylinder? it was running 180* temp
3. should i still trust the piston (kb167) thats been hit by both valves now?
4. why me?
seriously any input is appreciated. i have no money left to fix this but is it my problem or the builder's? please help me before i give up and sell the thing. ive spent much more time wrenching than driving and its getting old