A 1974 Duster - My 2nd one, 41 years later!
Well...... About an hour of run time disaster strikes. In my opinion the cause is running the MRL solid roller lifters and not tubing the block or bushing the lifter bores. These lifters were "supposed" to be drop in, no mods needed. Nope...they are not!
Low oil pressure, burned up the Hughes rockers and shaft on passenger side over hole #2. Everything is a big mess. The shaft on the passenger side is scarred so bad... it looks terrible. I really don’t know what to think. All components were purchased from Mike, his 408 design. I carefully assembled it all. Running a solid roller VooDoo cam and the MRL lifters with Smith Bros. push rods, and Hughes shafts and 1.6 rockers. Disaster. Live and learn, expensive F up.
Pulling engine, going to take it apart. Either I’ll have the lifter bores bushed, tube the block, will buy a set of Comp 828-16 solid roller lifters (no oil belt). The 828-16 lifters require grinding the block, should have been done before it went together. I will now be on an Oil Mod Mission!