Another 408 Validation

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WarHammer

WarHammer

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Oct 13, 2020
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Havelock, NC
Hello all. Doing my first engine build and just looking for some insight for those more experienced than I.
I have a 1972 360 that is at the machine shop. It will be bored .30 over and get the normal treatment of dip, plugs, bearings, and zero decked. I have found what I think is a good stroker kit (eagle esp 20502; cast crank, i beam rods 3/8 arp studs, mahle forged -.16cc dish pistons, internal balanced assembly) that will achieve 10.6:1 compression ratio. Additionally the top end will have edelbrock performer rpm heads, rpm air gap intake, edelbrock rpm cam and lifter set (318 exhaust, 308 intake, .488 lift, 112 lobe sep), going with Felpro wire ring head gasket at .039 compressed and 4.180 bore. The primary use is street/strip.

Just looking for insight as to if this is accurate and if it's a good build choice for my intended application.
 
ch1ll said:
Not a big fan of Eagle anything.
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I’m really not an Eagle fan either but I ran 6.0’s with my Eagle 422 crank and rods. It will be going in a friends build soon. But I would take an Eagle CAST crank like he’s using even if you gave it to me and delivered it. I don’t like the 3/8 rod bolts he’s using either.
 
pittsburghracer said:
I’m really not an Eagle fan either but I ran 6.0’s with my Eagle 422 crank and rods. It will be going in a friends build soon. But I would take an Eagle CAST crank like he’s using even if you gave it to me and delivered it. I don’t like the 3/8 rod bolts he’s using either.
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There are so many better quality cranks on the market today even if they cost more. I’ve heard to many eagles have snapped.
 
ch1ll said:
There are so many better quality cranks on the market today even if they cost more. I’ve heard to many eagles have snapped.
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Trust me it wouldn’t have been my first choice. It came new and balanced with 360-1 Indy heads, cam, pistons, rings, bearings, and an R3 block ready to assemble for 7000.00. A Molnar crank and rods will be going in it hopefully this winter. They are sitting here ready to go get balanced when I get pistons.
 
Pretty mild build . So unless he is launching with a 4sp and sticky tires I doubt there be an issue. That being said if costs are close try going with a more reputable brand .
For a street car probably wouldn’t be any issues.

Torque monster ! Great for a driver !
 
In my opinion eagle has terrible reputation.
I would buy a scat kit long before an eagle. Molnar crank would be my first choice at a reasonable price point. (Meaning no Bryant $5000 cranks and the rest).
I would get Molnars h-beam rods with good bolts too.
 
33IMP said:
In my opinion eagle has terrible reputation.
I would buy a scat kit long before an eagle. Molnar crank would be my first choice at a reasonable price point. (Meaning no Bryant $5000 cranks and the rest).
I would get Molnars h-beam rods with good bolts too.
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Molnar rods only come with good bolts.
 
Honestly what are the percentage of Eagle cranks that failed ? And how many of those were max performance engines for racing ?
I ask this in all sincerity…
It’s like the 741 8 3/4 taboo.

I ran a stock cast 360 crank in a 500 hp engine with a 4 sp and had no issues. In fact Herb McCandless himself told me told me himself that he had never seen a failure in an application like my build . And he told me how to build it .
 
And that cam is a turd in a stock stroke 360, I would never use it in a stroker build.
 
mbaird said:
Honestly what are the percentage of Eagle cranks that failed ? And how many of those were max performance engines for racing ?
I ask this in all sincerity…
It’s like the 741 8 3/4 taboo.

I ran a stock cast 360 crank in a 500 hp engine with a 4 sp and had no issues. In fact Herb McCandless himself told me told me himself that he had never seen a failure in an application like my build . And he told me how to build it .
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Actually 360 cast cranks are real stout.

If your buying an aftermarket stroker crank, you might as well get one with a good reputation.
 
mbaird said:
Herb McCandless himself told me told me himself
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Had many conversations with Herb, he shoots straight, but he would never recommend a cast crank.
All his advise was buy the best you can because you're gonna want to go faster.
He would tell you make sure the pistons are cut for .650. lol
 
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