Technical Smoothin’ an engine block

Lol!! ^^^

Yeah I didn't notice any difference, of course it might have been one of those " feel it in the seat of yor pants" experiences I missed!

Kind of like when you talk to someone who put a cam in their basically stock 350 and tell ya that they're sure it'd run low 11's now!! They can tell just by the way it runs.

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I am smoothing the spindles and steering arms on the DeSoto front end I am swapping onto my Plymouth. Not trying to go crazy but knocking off the forging lines to reduce stress risers and unsprung weight. I figure, with both sides done and my backing plates drilled, I will save about a pound total, and compared to my 10" brakes I am replacing, probably only gaining 5 pounds total. LOL

 

A PITA and time consuming however you won't see things when it's all bolted together

 

Well MGTSTUMPY, let me shake your hand and say it was worth it. Cause in my books it surely was seeing the end results.

 

I did that to a 409 once for someone else. Yes once. It’s a pile of work.

 

I get it, I understand it... But I spend way too much time on the inside of the engine to worry about the outside. I do grind off extra casting flash and other imperfections, But honestly I cant justify the amount of time and mess it causes. I suppose if I was building a Riddler car it would be the thing to do. Sorry in advance Root

 

I was told by a Street Rodder [chopped 3w] that there is no way a smoothed [or chromed] engine will not overheat with out all the surface roughness to dissapate heat from the air blown on/over it by the fan.. He actually got pretty steamed..

 

Casting flash is not engineered into the cooling equation. It's a byproduct of casting molds. The new aluminum engines are way smoother castings than those of the 50's-70's.

Someone should tell the aftermarket head manufacturers.......

 

That green 409 is a work of art, looks like a model car engine!

 

I can’t be bothered, the engine in the Fargo got rattle can flat black, no one notices it when you are busy driving them.

 

Nothing wrong with that.

 

I did a complete valley polish on SBC once. Not doing it again inside or outside.

I do deburr / chamfer all rough and sharp edges on engines, no reason to leave the finger shredders there for later.

 

Never did the exterior of an engine beyond smoothing off some sharp edges and casting flash, but I did some smoothing on the inside of a Pontiac 455 to improve oil return to the pan.

 

I did a motor recently and i ground all the flashing off and then retextured it with a air powered needle scaler. Looks great!

 

Yup, that's about all I will do these days.

If I don't, I WILL be involuntarily donating blood at some point.

 

I remove the sharp casting edges at the back of a Ford Flathead

 

I’m kinda against painting the inside of an engine. Even with glyptal. So I polish the lifter area and all return areas. Smart, foolish waste of time, I don’t know but I feel better. On the outside I just try to remove the sharp edges. I already have more than my fair share of scars.