If you don't change plug wires I would buy a spare set and carry them with you. Depending on the vintage many 454's are known for high exhaust temperatures. Even if you do change plug wires I would save a couple of the long ones (so you can use them on any cylinder) for spares. I'd suggest taking a close look at the exhaust manifold gaskets (and entire system) for leaks and take ant necessary action. I have even had to remove exhaust manifolds from my 454's and have them remachined flat to get a good seal.
I drove 454 powered dually pickup's for years but finally had to give them up due to gas prices.
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Today's Featured Article - Machine Shops - by Curtis Von Fange. It is a story that repeats itself countless times. In the process of rebuilding a particular section of the tractor there is a broken part for which a replacement cannot be found. The parts houses find in their catalogue that it is unavailable. The dealerships call it a discontinued part. Salvage yards define it as hard to find or, even worse, rare. Everyone on the NET says, 'what is it?' But don�t despair there is another avenue that can be used to get that piece repaired. The local mach
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