Compression in stock 302
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Joined: Mar 2002
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Compression in stock 302
My 1990 302 EFI has 140,000 miles. Compression is 150 in #6, and all the rest are 140.
Does anybody know what this number is for a new or rebuilt engine?
Is 140 a good number?
Does anybody know what this number is for a new or rebuilt engine?
Is 140 a good number?
Freshman User
Joined: Feb 2002
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Compression in stock 302
How is your power?? I have 1989 F150 302 with 109,000 on it, I had the compression checked it has 125-130. I do alright till I pull my camper, then I can tell a difference. Lucky I only pull the camper about 15 miles to the campground. I thinking of having a rebuild installed at the end of the camping season. I can't afford a newer truck and the truck is in good shape otherwise.
Senior User
Joined: Feb 2002
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Compression in stock 302
Your numbers look ok for a high mileage engine.My recently rebuilt 302 has about 165-170.What you like to see is all the numbers pretty much the same within 10-15% of each other.If you wind up with one or two really low then you've got problems.
Billy
Billy
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