noonzor

iTrader: (1)

my harland sharp rockers are hitting the head (pic below) at the edge above the pushrod cup. ive read that i can just dremel it and get the clearance i need. now, ive got my heads torq'd down already. 317 heads, zr1 multi layer gaskets with hi tack spray a gasket between layers, arp head studs...etc... i didnt notice when i was checking pushrod length, but now that i look you can see where the rockers have marked the aluminum during the measuring process. not sure if that would have mucked my measurement up, but i got 7.250" with the checker, checking at each pushrod hole. just wondering what is my best course of action?

any advice is appreciated thanks,
kyle.

Duffster

iTrader: (103)

Push rods aren't the issue. Your best on this is to either:

1 - remove and replace rockers
2 - clearance them as mentioned - cover EVERYTHING in there and vacuum at same time.
You won't have to remove much.

noonzor

iTrader: (1)

thanks duffster. im not sure im comfortable with doing this "heads on" so i will most likely pull the heads before i attempt the clean up. that way i can ensure to get a good clean and rinse and be SURE there is no little bits of aluminum floating about. how much clearance should i allow between the head and rocker roughly?

Duffster

iTrader: (103)

can't give you a GM specification, but I would think 1/16" should cut it just fine...

noonzor

iTrader: (1)

thanks man, really appreciate it!

Duffster

iTrader: (103)

Ya do it yet?

Che70velle

iTrader: (6)

I'd mill the back of the rockers. I've cut the top of a few sets, but I haven't done the backs...yet.