Need more P/V clearance in a BB mopar

GallopinGhost · 04-21-2018, 08:21 PM

John,

Maybe I didn't explain very well what I'm doing. The whole purpose of this exercise is to figure out how much to machine the heads. I have a finished block with the crank, 1 rod/piston, cam, head gasket, and a spare assembled head, with valves and rockers, and an adjustable pushrod. I then take P/V measurements. Then measure the valve drop on my spare head, which is the travel of the valve to the head deck. Next I compare the valve drop on my new head at the shop to mine. If the new head had .010" more valve drop, I should have .010" more P/V clearance.

The steel shim gaskets are mopar performance and are available from mancini, for $20/set. Felpro 1009 is what I'll probably use though.

Not angle milling the heads.

04-21-2018, 08:21 PM	#17
GallopinGhost Member Join Date: Jun 2010 Location: VA Posts: 230 Likes: 23 Liked 21 Times in 13 Posts	Re: Need more P/V clearance in a BB mopar John, Maybe I didn't explain very well what I'm doing. The whole purpose of this exercise is to figure out how much to machine the heads. I have a finished block with the crank, 1 rod/piston, cam, head gasket, and a spare assembled head, with valves and rockers, and an adjustable pushrod. I then take P/V measurements. Then measure the valve drop on my spare head, which is the travel of the valve to the head deck. Next I compare the valve drop on my new head at the shop to mine. If the new head had .010" more valve drop, I should have .010" more P/V clearance. The steel shim gaskets are mopar performance and are available from mancini, for $20/set. Felpro 1009 is what I'll probably use though. Not angle milling the heads. __________________ Brian Carpenter Stock 1358