Don't have to prove if they will crack, it's a known fact that magnum heads crack
Incorrect. If you said there is probably a high probability…
Then I’d agree.
Thin wall castings, machine shops know this
This answer comes with a second quoting of my post with no point of reference. Thin wall castings…. Machine shops know this…. In regards to what statement now?
Id say any machine shop that automatically says my block is a thin or thick wall casting will put me on a heels edge from walking out.
I've never heard of anyone boring a magnum block 0.060", this is due to the cylinder walls being of a thin wall casting.
So sorry I gotta break up this mess of a post
But JUST because you never heard of anybody going .060 doesn’t mean it hasn’t been done.
Machine shops don't recommend boring more than 0.030".
Of course not since a thicker cylinder wall is a stronger wall and overall a better power maker. The extra .030 adds little in the way of cubic inch and power.
It's even been in several car magazines.
Whom are often wrong and just being a parrot on something they read.
I talked to a lot of guys who build their own engines and I've talked to the machine shops as well.
Which means what? And you have done….
I don't know of anyone that owns his own sonic testing equipment or a xray machine. The magnum blocks may have some improvements over the LA block's,
Not many people do own a sonic checking machine.
You can get one on E-bay or Amazon.
but they still use the restrictive oil pump pick up tube opening in the oil pump body. Cheap cylinder head design.
Since there a passenger car designed engine, which has an absolutely fine oiling system for its intended purpose, what’s the issue? I’ve personally had a 318 spin to 6800 with h no mods to the system and live for years.
I guess you better start finding out what to look for.
I'm not trying to argue over it just stating what's known and been said about the magnum blocks. I believe that they still use a 2 piece rear main oil seal.
Your stating some rumors and hearsay.
What’s the problem with a 2 piece rear main seal?
You see hear the things is, you don’t know what you don’t know and take the words written from magazines, the internet as well as what other people parrot from years of BS feed to people. Until you take things down and inspect them yourself, your doing yourself a disservice.
As I have pointed out above in the earlier postnatal supposed good year, thick wall 340 having known to be over bored .060 and more sometimes was sonic checked to be a crap block. On the flip side, I have a good 330 that’s ready for a 4.1 bore, no problem.
(Should you have read elsewhere about another block I have, this would not be the block I’m talking about, that’s a MP race block good for a 4.22 bore.)
Oil pump flow restriction? Thought the original question was for a "simple performance upgrade"? Been in "several car magazines"? I can point out all kinds of BS that's been printed in magazines- they're only slightly more reliable than crap you read on the internet. Basic sonic testers are under $150- lotsa guys have them in their toolboxes (
Amazon.com: LotFancy Digital Ultrasonic Thickness Gauge Tester Meter, Range 1.2-220mm, with Hard Storage Box : Industrial & Scientific for example, if you don't believe me), myself included. So whether anything you're saying is true or not, it appears you already have your mind made up- so why did you even bother asking the original question and wasting everybody's time in the first place?
Exactly, he don’t know **** but makes claims and points to (LMAO!) magazine’s as if it were gospel.
Nice Amazon find.
