The pistons were at zero quench, so at full RPM they were very very close to the head, which is great.. however that doesn't leave a lot of room for loose tolerances in the rod bearing. it had a damaged rod bearing (low oil pressure at rev) and that combined with RPM stretch of the connecting rod allowed the piston to hit the head and shatter.
So I have a 78 f150 with a 351m your showing me it's worth dropping a built 400m in it!! Can or will you get specific on the motor build I'm extremely interested!!
Yeah I don't mind sharing my build specs. A lot of people keep asking, I'm thinking I'll make a little tech video on it and talk about the two engines I've had in it (400 and 523).. and the rest of the truck. I'll post on RU-vid and/or Instagram when I do it, probably this week.
rhauf1 thanks, my dummy butt you tossed a 351m off the bed of my 76 dropped it on a mattress but the crank rod still hit the concrete. I thought I didn’t need it until I saw this 🤗
