Just pulled the 318 out of my 76 D100 and it turns out it is a warranty block. The background on the truck is it was a CalTrans roads department truck. It was originally outfitted with a 318 HD option. It’s rumored that the 318 HD had 360 heads and intake and possibly steel cranks.
When we yanked it I was anxious to check the heads for a 360 casting but they turned out to be 2843675 castings that came on 1968-74 318’s and had 1.78” intake valves. Initial thoughts was that the heads must have been replaced because it did have the 360 intake manifold in place.
I looked at the block next. It was casting in 1971 and does not have any numbers on the pan rail.
Well, regardless, I am putting a hot little 318 in it and a performance built trans. The only thing wrong with this engine and trans is two ears on the flex plate sheered off. It made a weird noise and it was just my excuse to build a spare 318 up with Speedmaster sheafs and intake along with Comp Cams valvetrain and flat tops.
I’m thinking about putting a flex plate on this thing and put it in a 1973 318 Duster I have. Maybe I’ll put it up for adoption?
Cutrently having a heck of a time with alternators. Bought the AR Engineering Denso brackets and tried 2 separate Densos that were too big and a square back that was too big. I ground a tiny bit off the square back and it is sooo close but doesn’t touch and allows for the use of the original belt.
View attachment 1715882521 View attachment 1715882522 View attachment 1715882523 View attachment 1715882524 View attachment 1715882525
