Untitled Document

Engineering a 1934 Pro Street Street Rod

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.

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

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