• Welcome to the Pontiac Trans Am Community, the Official Home of the PTA! Sign up for a (FREE) account today!

Slapping, Clicking Or Tapping LS1?

Oldschool57

New member
Joined
Oct 25, 2024
Messages
1
Reaction score
2
Points
1
Location
Riverside, Ca
I currently own a 2001 T/A; previous to this, I had a 2001 Corvette.

They both made the same sound when warm to hot.

Many have posted somewhat different interpretations, like piston slap, lifter, and close to a knock.

After chasing rabbit trails of these sound postings, some say it's the oil viscosity, piston rings need a cleaner additive, oil needs a cleaner additive, etc.

This sound is the same from 2 different cars, and it leads me to believe LS1s are somewhat clarity, clackity-sounding engines when they are just fine.

I have yet to use moly lifter juice or any other kind.

The T/A has a fresh oil change to Pennzoil Platinum 5W30 Synthetic with an STP oil filter.