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Blueprint 408 stroker

DLMc

Active Member
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Jan 23, 2025
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Location
quitman ga.
I recently picked up a 408 stocker. After removing it from the create I started a thorough inspection of the engine. Using my bore scope I noticed piston skirt scratches on some of the cylinder walls. None of them look deeper than the cross hatching pattern. I called manufacturer and they told me it was nothing to worry about. In the last two years I rebuild a 340 and 360 and after a 500 mile break in I seen some very very minor scratches on two the cylinders on the La 360. In my experience of over 40 years of rebuilding engines as a classic car collector there are two causes for this, improper clearances or unsanitary conditions on assembly. I am by no means a guru on rebuilding engines but very precise on my builds and on the 40 or more engines I have built over the past 45 years have never had one fail. In my opinion I don't see this as normal, maybe some very very minor scratches on one or two cylinders but 6 out of eight concerns me somewhat. This engine has less than a 100 miles on it and runs very strong, It dyno at 500.2 hp with 523 on torque. I am very anxious to get it through the break in period and give it a run through the gears. Thinking about asking them warranty it but dam I hate to pull it after all that work. Have few buddies who have bought them without any issues and love them. I didn't mention the manufacturer because they have been very helpful and have a state of the art facility.

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Damn, I don't know what to say. They have a good reputation. What does your gut tell you. You've built a lot of motors. If you push them I'm sure they would warranty it.
 
I didn't mention the manufacturer because they have been very helpful and have a state of the art facility.
The thread title gave it away.... :poke:

I am confident that you will have no trouble with the engine as long as you look after it.

Mine is coming up to 8 years old now and still runs strong, blows no smoke and always bring a smile. :)

Given that my engine travelled a good 8,000 miles before it arrived, I am pretty happy still.
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:lol:
 
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