Lostpatrolman

iTrader: (3)

I bought a set of ported heads that only had a few k miles on them. I took the exhaust valves out so I could clean up the port. Then put the valves back in the same spot that they came from originally. Someone told me I need to put some sort of material on the valve seats and rotated the valves now to make then seat propertly. Is this required or even recommended for our engines?

T/A-Speedfreak

iTrader: (8)

ttt for ya! I need to know this as well.

ZLEEPER

iTrader: (24)

go to oreileys or autozone and buy a valve lapping kit for under $10. It's basically fine grit paste used to ensure that the valves seat flush. I had to do it in a set of heads that were cleaned. Clean up is actually the most time consuming, at least it was for me. chris

Lostpatrolman

iTrader: (3)

Yes, cleaning the heads up took forever. The valves are SS ferrea's. Is it necessary to lap them?

ZLEEPER

iTrader: (24)

I'm by no means an expert, but from what I know/been told, it's always a good idea to lap the valves anytime you disassemble the head. This will ensure that the valve completely closes leaving no gaps. What I meant about cleanup was: after you lap the valves, you need to clean the compound completely off the head9chambers/ports etc.) chris