hsmidy

hey so a bit of an obvious question(probbly) but im looking for a little more insight on it if there is any.



so basicly what is the aim/purpose of using a dumby block?

ColinRX7

Engine fit/mockup is much easier



Rather than lugging around a whole assembled block, it's alot lighter and easier to maneuver a block that is just housings and irons because it weighs alot less without any turning assembly installed.

Lynn E. Hanover

Oh,.........a Dummy Block. I thought you were looking for Gumby's brother.



The dummy or Mock up block is used to adjust frame tube locations and motor mount locations and the like. Best for snaking headers through frame tubes. If its a new design, I do the whole chassis in electrical conduit. Bends by hand, tac welds fine and is very light.



The mock up engine and trans drive line and rear end are on the table. Body panels may be propped up to locate wheel houses and locate seating and steering. Once the chassis is completed in conduit,

I can do the primary tubes for the headers.



On the current car I had to move one 1" tube about an inch to clar a header tube. It was OK in the dummy chassis, but I did not measure properly when building the real chassis and the tube blocked installation of the headers onto the dummy block.



Another feature is that you don't have to worry about weld spatter or grinding grit getting into the dummy engine. It is made out of junk parts.



This is my dummy engine. It was washed off and bug bombed for a photo session, and was the center fold picture in Contact Magazine a few months back. It looks nice, but is all scrap pieces.



Lynn E. Hanover