What machine work to get done to the heads?
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Mudding
Joined: Apr 2013
Posts: 192
Likes: 29
From: Cobourg, ON, Canada
My machinist did a vacuum test on my heads and the valves sealed so he skipped the 3 angle job, at my request. Runs fine but my vehicle had over 200k on the clock so I anticipated a major engine overhaul within a couple of years anyway. I also did the oil seals myself so I only spent $100 total on head work
Recovery Vehicle
Joined: Jul 2016
Posts: 949
Likes: 54
Not bad at all. Borrowed a valve spring compressor from the parts store, used large vice grips to gently clamp the old seals and spin them off. Then used an appropriately sized socket to tap the new ones on.
Camel Trophy
Joined: Aug 2014
Posts: 4,743
Likes: 985
From: Southwestern Virginia
I did the port and polish on my heads. The polish is probably only a minor help, but the port job definitely wakes her up. Port match to the gaskets on both the heads and the intake manifold.
You have to remember, these heads were designed for a 3.5L engine and they're on a 4.0 or 4.6L, so they're obviously going to be a little bottle necked.
You have to remember, these heads were designed for a 3.5L engine and they're on a 4.0 or 4.6L, so they're obviously going to be a little bottle necked.
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Mudding
Joined: Apr 2013
Posts: 192
Likes: 29
From: Cobourg, ON, Canada
Thanks guy. I'll look into port matching the intake and heads if time allows. I'm placing my order for the timing chain set and water pump now. Anything else? is the oil pump worth it at my mileage (77$) ?
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