Factory Correct Restoration Details

[MusicMan70]

I had strange markings on the side of my block before I cleaned and repainted it. Looked like something spilled or smeared (UFO crop circles) on the side of the block, then I turned it upside down; TAX.
Guess this mark was added during the engine building process?

[factorystock]

Just curious, is a 1970 TAX 255HP 350 a 2 or 4 bolt main bearing cap engine?

[MusicMan70]

factorystock
Just curious, is a 1970 TAX 255HP 350 a 2 or 4 bolt main bearing cap engine?

You'd be CorrectaMundo Sir.

[custom10nut]

Originally Posted by factorystock

Just curious, is a 1970 TAX 255HP 350 a 2 or 4 bolt main bearing cap engine?

Mine is a 4 Bolt Main

[Graham57a]

TTT, I was doing some research on factory inline 6 grease markings and decals without much luck. Anyone have photos of a low mileage straight six truck stashed away?

[DeadheadNM]

Originally Posted by MusicMan70

I had strange markings on the side of my block before I cleaned and repainted it. Looked like something spilled or smeared (UFO crop circles) on the side of the block, then I turned it upside down; TAX.
Guess this mark was added during the engine building process?

Here's my block (Thanks Paul and Jason!) that shows similar factory markings. In this case, TDR is the correct code for a K20 4wd application in 1972 - this motor was pulled from a K20 Suburban and will have a new home in my 72 K20 Super

[Duncan and son]

Originally Posted by DeadheadNM

Here's my block (Thanks Paul and Jason!) that shows similar factory markings. In this case, TDR is the correct code for a K20 4wd application in 1972 - this motor was pulled from a K20 Suburban and will have a new home in my 72 K20 Super

Hey Pete , always good to see your post. Have you or anyone ever seen these markings on the side of the block, on a big block
Always appreciate you and your help Paul