Hi all my first post and my first Stovebolt 48 gmc firetruck with a 270 I know this from the only number on the boss is 270 and by measuring the bore. Tuck has been sitting 20 + Years couldn’t get it to start After a compression test I found low compression to be the culprit. #2&4 has 0 the rest had 30. Removed the head found the seats to be pounded and rusted out. Sending head in for a complete rebuild. Upon inspection of the engine #4 cylinder had a small patch of rust. A ball hone was used on the top 3/4 of the cylinder and it came out pretty good. Now the only other issue is I have 3 lifters with some galling on the cam face Dose any body know where I can get three new lifters? Thanks and I can’t wait to hear from you guys