Thread: lifter noise

Tweet

I just got a 74 Nova SS out of a barn, It had been there about 13 years and got it running. I started it on 30 wt oil and had no noises. I changed the oil again to 10 40 and started having lifter noise. I put about a half quart of atf in the engine but still get the noise. Will this cause problems with the cam lobes? Also I ran the suffix code on the block and it comes back as an LS9 truck block, Any one kny info on this block? Would it make a good starting point for a performance build up?

the heads come back as 462624 which according to chevy mania are 76 to 87 with 76 cc chabers and crack prone.

The noise your hearing is probably a failed lifter. This wont cause any problems per-say, but its a safe bet that you should find the offending lifter and replace it. Either that, or go with a new set. Personally, i find that if one is ticking, the other ones will soon too.