โAug-09-2020 06:49 AM
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โAug-13-2020 12:37 PM
Fishbreath wrote:Its not just the 454, its all SB/BB chevys, fords, and Mopars. Its the funky timing chains that strength and wear the gears. We use to recommend changing the timing sets at about 75K to prevent failure and bending valves/pushrods.
How many miles and do you know the maintenance history?
I do agree that getting it on an scope will help to determine the problems. The 454 with high mileage (over 100k) had some issues with the timing chain jumping a tooth.
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