ceramic long tube headers 5 3 temperature rating
1968-1972 Chevelle Small Block Long Tube Headers . Headers look good and install well. But here is a list of some issues or drawbacks: - the ceramic coating does not cover the inner area of tubes near the collector - rust develops there quickly! - two-three spark plugs are too close, I needed to go for shorty spark plugs and also to use thermal protection of the ignition wire boots - one tube ...
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