408 W2 Stroker Build

M_Body_Coupe

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Alright folks...time has come to start wrenching away on this thing, otherwise before you know it the winter is over and than what??? LOL

So here is my plan: I'm going to try to do a whole bunch of videos as the work progresses. You can't capture it all in video format though, so photos will come as well.

VIDOES
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1) Introduction
 

79410aspenrt

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keep the videos and photos coming.
i haven't touched my car at all since september. waiting for my parts to come back from machine shop so i can assemble it. RAMM should have my heads done this week. been a very long winter looking at my car and not being able to do anything
 

Duke5A

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Dude, holy quarantine beard! All kidding aside, I'm going to love watching these videos.
 

M_Body_Coupe

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Hey Mark!

Dude, holy quarantine beard! All kidding aside, I'm going to love watching these videos.

Ha...yeah, I figured you'd probably get a decent chuckle out of that video!!!

...and listen, thruth be told I've been saving that look for my Hollywood premier you see here! :cool:
 

M_Body_Coupe

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...i haven't touched my car at all since september. waiting for my parts to come back from machine shop so i can assemble it...

You know, this being a street car as opposed to your race combo, I really was having a hard time bringing myself to start the project. Not that I didn't want to do it, but it always felt like "man, I just put this thing together". Well, originally it was a darn nearly 15 year project, so I think I can be forgiven for wanting to put a few more miles on it before tearing into it again.

However, as I looked it over just a couple of weeks ago and noticed that the epoxy job on one of the exhaust ports was letting go (tell-tale white powder coating on my exhaust primary pipe) I figured it was the right time to bite the bullet and get elbows deep into this. There is just no way that port was going to hold for another season and to fix it the heads have to be yanked anyways...so it just made sense.
 

M_Body_Coupe

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VIDOES
=====
2) Current Engine Pull

BTW: I had hoped I could just EDIT the original post of mine in this thread to keep the videos sequentially organized and avoid having them scattered all over the place in the thread...but the EDIT is not available in that original post. Is that by design (meaning: this particular forum software works that way)? I ask because I sitll see EDIT buttons showing on my other responses...so what gives?
 

M_Body_Coupe

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Hey Everyone!

Well, it's been a while. I have a bucket of videos to edit first, hoping to get that done this weekend.

In the meantime, the new block is up on the stand, painted and ready for assembly.

I had ran into a problem with the oil pump gear drive and the Comp Cams hydraulic roller cam I had intended to use in this build. Most of the folks on Moparts suggested there must have been an issue with the cam when the gears were machined. Most likely I won't be able to use this anymore. I've reached out to Comp Cams to see if we can fix, or perhaps replace with something else. Haven't heard back yet.

Otherwise, I did manage to do some other things, such as doing a DIY cylinder wall sonic check. DIY only b/c I'm using a hardware store checker, although it was spot-on with a number of test materials.

Take a look at the numbers, I was told these are pretty good, this being a factory '74 360 block.

408W2 - Block Cylinder Wall Sonic Test - PASS - IMPERIAL.jpg


408W2 - Block Cylinder Wall Sonic Test - DRIVER - IMPERIAL.jpg
 

BudW

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I get the TMB (Top, Mid, Bottom) - but I thought one got those measurements front/rear and side/side (two sets of numbers per bore). I don't recall seeing four sets of numbers before.
 

M_Body_Coupe

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I get the TMB (Top, Mid, Bottom) - but I thought one got those measurements front/rear and side/side (two sets of numbers per bore). I don't recall seeing four sets of numbers before.

Hmm, well this is the first time I did this. I based my method on what I was able to find on-line (speed shops) as well as a few of the Mopar engine building books.

So here is how I understand this:

1) Top / Mid / Bottom
So that you have a better feel for whether the wall gets any thinner along the piston travel path.

2) Major and Minor Thrust
Major Thrust is really what you care about as that is the side that sees piston loading on the power stroke. The Minor thrust happens on it's way back up.

3) Front and Back
There was no specific explanation for these other than to check for the consistency of the wall thickness.

All in all, you are talking 4 measurements at any bore depth, multiply by 3 (since you are measuing at Top / Mid / Bottom) and you end up with 12 per cylinder.

Belive me, I was pretty excited for the first two cylinders...then it got pretty tedious!!! LOL

Still, the effort was worth it, good to have the numbers. Of course I spot checked occasionally to make sure that I had repeatable numbers.
 
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BudW

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Hand meets forehead . . . Sonic check...duh. Its been a long day, sigh.

It only takes one cylinder to cause an major issue. My mind was elsewhere.
 
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