BB Chevy Nylon Timing Set - Years Used?

**scuncio** · #1 09-22-2019, 11:33 PM

I have a 38,000-mile 1971 402 Impala that needs some engine work - and I'm wondering if it would have had the nylon timing gear set from the factory (in which case I'd R&R it with a new steel timing set).

Thanks,
Tony

**luzl78** · #2 09-23-2019, 12:13 PM

If original then it would have the nylon.

**Mr70** · #3 09-23-2019, 12:18 PM

Yes,GM used them throughout the 1960's/70's.Unless someone has already changed it before you,I would.

**scuncio** · #4 09-23-2019, 08:18 PM

Thanks...guess I'll be getting on that.

**WILMASBOYL78** · #5 09-23-2019, 09:03 PM

The last one I did was so loose it just about fell off in my hand when the timing cover was removed...and that was on a 33,000 mile car

Best insurance for a big block...check those valve springs, keepers etc...they can be a problem, too.

-wilma

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scuncio (09-29-2019)