Warning about unethical parts supplier--JS Repair

Just consider this fair warning, we found out too late, hope you all don't have that problem, we would have sure appreciated a warning.

jUsT a ThOuGhT.

yOUR GRAMMER SKILLS are awful.

The gentelmen is expressing his dislike with a builder. Not everyone has the skills and knowledge on how to assemble a motor.

So keep your B.S to your self it"s not needed, unless your the engine builder in question.

If you are be man enough to use your correct name and do explain.

It"s to bad there isn"t more perfect people like you .

James Rumph

If there are any wanna be bounty hunters out there in the Chillicothe area, maybe we could work something out for his "safe return".

You said you were dealing with a "rotating assembly". In my mind, that is the block, crankshaft, rods and pistons and possibly camshaft. You said you were dealing with a tall deck block. You said the parts were "wrong".

I'd like to know specifically what was wrong ?

You made some reference to it being a "tall deck", and Bob didn't know it was a tall deck, but you told him it was a tall deck.

Given that, and given your reference to the parts being "wrong", I would assume the problem has something to do with deck height and compression distance ?

The deck height difference (between a tall deck and normal deck block) is considerable, nearly 1/2 inch if my memory serves me correctly. If you are dealing with a 454 stroke (4.25 inch), the compression height for those pistons is 1.647. For a 454 tall deck block, the piston compression height is 2.040 to accomodate the taller deck height.

That's a whopping difference! Meaning, it would be clearly obvious to anyone assembling the rotating assembly... should they have the wrong parts. IE: the pistons would be sticking up out of the block... or be way below deck surface.. at TDC !

Now, I realize you are dealing with a aftermarket Dart block (probably Merlin), and I may be off on my compression height, esp IF you are using a different stroke, etc... but my "theory" holds water either way as the deck height difference is SO dramatically different when speaking of a tall block, that any fool could see if they have the wrong parts when it comes to compression height.

So please.... explain the details ! I'll be looking forward to your reply. And, let me appologize in advance if you have some crazy custom rotating assembly that falls outside the limits of normal 427/454/502 stroke and compression height/ rod lenght/ that would allow for such a mistake to escape the trained eye.

I'll be waiting for your reply !

Mark Osborne
Osborne Auto
Fraser, Michigan