Running and Racing Reliably Part III: Final Installment: Top-end Assembly
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Here's why Taylor couldn't install the oil pan before the heads were bolted on. Since this application will have A/C, there is a longer extension on the dipstick tube so it's easily reached with the A/C compressor in place in the Pontiac. The extension attaches to the intake manifold via a bracket. This system is assembled with the intake during pre-assembly to determine if adjustments are needed to the through-the-block tube or the junction of the through-the-block-tube and the upper dipstick tube extension. There's no way to determine if the dipstick extends into the pan to the proper depth unless it's measured in place with the pan off. Jim also wants to set the oil level so that the crank doesn't run through the reservoir of oil in the pan during operation, which could reduce horsepower by 10. View Related Article
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