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Engineering a 1934 Pro Street Street Rod

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Click for a 67 Page PDF

 

Click for YouTube Video Overview of Car

 

 
Sanderson Headers

 

Sanderson Headers fit the chassis very well and allowed the exhaust system to exit the engine compartment with minimal effort.  One problem--they didn't fit the 502/502!

The Chevy bolts used to fasten the cylinder heads were too high and interfered with the bottom header flange.  Tried grinding the top off of one and grinding the bottom of the header flange.  They may have worked for a few bolts but not the majority!  What to do?

The solution was to remove the outside Chevy black oxide bolts and replace them with Grade 8 X 2 inch long bolts with standard Hex Heads (photo left).  We retained the thick hardened steel washers supplied with the engine. Note the reduced height of the bolt head.  It fit fine.  Since the head was already installed, the interfering Chevy bolts were carefully removed (one at a time) and the new bolts torqued to 65 ft-lbs.   Fortunately these outer head bolts required less torque and standard Grade 8 - 7/16 X 20 bolts have sufficient safety margin for that torque!

Note the 6 radial lines on the bolt head (lower photo) denoting a Grade 8 bolt.  Be sure they are present!

The next problem was header gaskets. 

  1. Purchased some Percy Aluminum gaskets (photo lower left) but they had too large a port opening and did not fit the 502/502.

  2. Then a set of Sanderson Copper Gaskets were purchased (center photo).  Expensive but if they worked why not!  First they required a lot of trimming to match the ports.  My Dremel Tool and I spent quite a bit of time but we made them fit.  However they leaked when the engine was cold! See the carbon on the face.  The carbon and "black water" (a product of combustion)  were  running down the engine when it started!

  3. Finally the solution and a simple inexpensive one.  With Copper Gaskets in Hand now perfectly port matched it is was off to Auto Zone.  Mr. Gasket Ultra Seals were found on the shelf  (photo right)!!  Part number 5910 was a perfect match for under $15!  They have been leak free for 3 years!

 

Why was I looking for the exotic solution when the conventional would do best!

 

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A Professional Street Rod Builder Had This to Say:

With their standard MIG welder gas delivery hose the peak shielding flow at weld start was measured at 150 CFH. That caused air to be sucked into the gas stream causing poor weld starts.  With the GSS replacing their existing hose, the peak flow surge at the weld start was about 50 CFH.  Total gas use was cut in half.

Kyle Bond, President, quickly saw the improvement achieved in weld start quality as a significant advantage!   Kyle, an excellent automotive painter, was well aware of the effects of gas surge caused by pressure buildup in the delivery hose when stopped.  He has to deal with the visible effects in the air hose lines on the spray gun in his paint booth!  The paint surge is visible and creates defects unless the gun is triggered off the part being painted!  We can’t do that with our MIG gun!

 

Purchase Gas Saver System Product  

 

Visit These Other  Sites  (just CLICK on the ITEM):

 

 

3 Inch Stainless Exhaust System 

Coolant, Thermostat and Additive
Getting the Heat OUT 
Most Important - - - IGNITION TIMING

Wiring

REFERENCES and BACKGROUND
Wiring
"WARNING: "Weld Safely"