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brad

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Posts posted by brad

  1. I used Composite housings with a LED  H4 bulb replacement. Less current draw than any incandescent bulb. Just shop around, and make sure the housings are not the type that protrude further forward than stock glass bulbs. Otherwise the outer glass lenses will hit.

    CS6P8907.jpg

  2. It depends on the serial #. Early versions were vinyl, and carpet glued to a carboard inset about 1/2 width of the panel. The carpet, and vinyl were separated by a stainless trim piece screwed to the panel after installation. Later versions were all carpet, and also had a plastic grille screwed over the vent opening.

     

  3. The recommendation to pack the area with grease (for lubrication)is absolutely not true. What they ARE recommending is to pack the push rod hole with grease so the rod stays in place while installing the pump. They do not have the arm riding on the drive eccentric like some cars, but in actuality have a drive push rod. The only reason it MIGHT have a oiling problem is if non stock gaskets were used between the first mounting plate, and the block. There should be no gasket overlap between the pump body opening, where the pump actually bolts to the adapter plate. I have worked on May SBC engines, and NEVER saw ANY oiling problems ate the fuel pump. They simply do not exist.

     

  4. The water pump. Nothing will flow until the thrermostat is open. Changing to a bypass thermostat will make a small change. Changing to a large bypass opening in the water pump will make the largest change.

     

     

  5. 13 hours ago, 64studeavanti said:

    Brad, have you actually measured the spark plug seats between the 2 heads? The reason I asked, is that I have several sets of 570, some of which are known to be R1, some 555 heads and some 294 heads. All have the same machining for the spark plugs.

    It isn't apparent to the naked eye, it is the depth of the machining. You have to screw in a spark plug to check the difference. A  "J" series plug in a regular head will have about 1 1/2 turns of thread still remaining, when fully seated. Conversely ah "H" plug in the Avanti heads will have threads sticking out of the hole.

  6. Sorry, but this is one where everyone that thinks truck heads are the same are dead wrong. The spark plug seats are machined deeper for J series plugs on the Avanti, and the Truck heads still use the "H" series plug reach. The casting number may be the same, but the PART number is different!

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