Mopar Engine Weights

[RustyRatRod]

RustyRatRod submitted a new Article:

Mopar Engine Weights

Our good buddy, @pittsburghracer was kind enough to post this chart, so I thought I would add it here in the How To section so it will be easily found and referred to. And a message to the administrators. Can we please lower the minimum on the character count for the how tos?...

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[Ogre Backwash]

This must be a mistake, possibly the numbers were switched. The sheer size difference and complexity between the single and double rocker shaft engines can be discerned at a glance.
Dodge 241-325 Poly 645 ??
Dodge 315-325 Hemi 610 ??

 

[66fs]

Those numbers include accessories. The older engines had heavy generators and the bracketry to attach them. I have been weighing components from a 354 Chrysler Hemi and a 341 Desoto Hemi and they are not as heavy as those charts would have you believe. As a matter of fact the blocks on the Desoto Hemi are not much more than a LA small block.

 

[Ogre Backwash]

My comment is limited in scope. I am only referencing the Dodge Hemi/Poly group, particularly the 315-325 c.i. based on my personal experience working on them. I have not cross referenced my observation against any other established reference source yet but am attempting to do so now. I have a 315 Poly on an engine stand but don't have means to weigh it. Poly and Hemi use the same accessories. The only differences are heads, pistons, cam, valve train complicated with second rocker shaft, valve covers, intake manifolds and carburetors.
No way a poly version is heavier than its Hemi version within the Dodge division's first v8 offering.