What are the valve settings for 350 Chevy engine?

Answer 1

Hi there, I hope that I can help as I have had a heck of a time trying to find the answer to this question myself. The valve setting for a Chevy 350 engine is as follows :- Intake 10 - 27 thou (inches) Exhaust 10 - 27 thou (inches) I have a 1977 Chevy Scottsdale camper Special C20 2 wheel drive, 3/4 tonne Pick-up truck and tried setting the valves as directed by Chevy, and also the Haynes manuals. Don't bother as the info that they provide is so vague, it's a joke. I actually found the valve settings in an obscure part of the Haynes manual and the description was so poorly written that if I couldn't read between the lines, then it would have gone unseen. Having taken into account the age of my engine, mileage etc etc I decided to set all my valves with a setting of 10 thou. Ideally you should take the middle of the difference, 10 - 27 thou, difference of 17, split by 2, ......8 and add to the smallest setting, 10 thou + 8 thou gives 18 thou !!!!!!!!! After having set my valves the engine now runs like a dream. And, to prove that it is correct, 4 days later I did a road trip from Vancouver Island to Alberta, a distance of approx 800 miles/1200 kms and the engines still runs like a dream and starts on the very first turn of the key. The exhaust is a clean sooty black, the power range is improved, mileage is also improved and the sound of the engine just purring is also prove. I hope that this helps out all that are looking for the answer, Tony.

cam92rs- hydrolic lifters and solid lifters are completely different. chances are you have hydrolic flat tappet cam and lifters. the best way to adjust those are to run the engine and losen 1 rocker at a time, till it chatters, then tighten till the chatter stops, then go a quarter turn tighter. that's an old mans tip and they have been doing it this way for years. the correct lash is (0) zero. tighten the rocker while turning the pushrod until you feel slight resistance.. there should be no up and down movement.