Blueprint 408 cooling system questions.

Johnny Mac said

I'm sure there is some context lost in there. What is true is people continually don't dial in enough ignition timing during cam break in, and rings seating does help. I imagine that's what was being relayed.

Lots of good advice in the comments relating to timing, fans, etc. I gave a long post about things to check, and didn't see it responded it. Heavy springs in the dist is a problem. As well as dieseling. Thats fuel/timing. Noone wants him blindly throwing parts at it, but clearly have issues to work through.

@Moparmadness408 Was this purchased as a turn key engine? Carb and intake on it? Or longblock only?

How many miles are on it?

BluePrint engines is always happy to help customers. I will again openly state you are welcome to contact me directly.

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That’s a FACT. Way too many guys are afraid of timing, so they retard the **** out of thinking they are going the right direction when all they do is run the EGT off the map and kill parts.

It’s 2021. The rings should be seated when it starts. The days of making 10-12 dyno pulls before the rings seat and the power settles down we’re over in the early 1990’s.

If the rings aren’t “seated” in a minute or two, you might as well pull it down and fix it. Because they will never seal correctly.

All this info is on the web. Ring manufacturers, oil builders, hone manufacturers all go out of their way to get this information to the public so the guys who spend their money on this stuff are educated in their buying decisions.

If your engine builder tells you to break the engine in for *** miles, find a new builder.

Ring materiel and design are light years ahead of where they were even 20 short years ago. Hone technique, hone geometry and bore surface finish is critical to ring seal. If your engine builder isn’t using a profilometer and writing down the Rk, RpK and RvK numbers, then you should question how in the hell he knows what he has.

Application dictates bore finish. Even the fuel you use can change the bore finish and the geometry.